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Journal articles on the topic 'Vinyl ester'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Karjala, Santhosh priya, Vijay Kumar Kuttynadar Rajammal, Suresh Gopi, Rajesh Ravi, Devanathan Chockalingam, and Meenakshi Chinathambi Muthukaruppan. "INFLUENCE OF IPNS (VINYLESTER/EPOXY/POLYURETHANE) ON THE MECHANICAL PROPERTIES OF GLASS/CARBON FIBER REINFORCED HYBRID COMPOSITES." IIUM Engineering Journal 23, no. 1 (2022): 339–48. http://dx.doi.org/10.31436/iiumej.v23i1.2031.

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The main objective of this study is to compare the interpenetrating polymer networks’ (IPNs) physical strengths with different variants of fibers. In this study, E-glass, carbon, and a combination of E-glass and carbon fiber (hybrid) have been taken as the reinforcement. Similarly, three combinations of the IPNs were chosen as the matrix material, namely epoxy / polyurethane (EP), vinyl ester / polyurethane (VP) and epoxy/vinyl ester (EV) as IPN blends. In order to thoroughly understand the physical characteristics of the combination of blends and fibers, nine variants (laminates) were fabrica

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2

Parmanov, A. B., S. E. Nurmanov, J. U. Abdullaev, et al. "Synthesis of vinyl esters of some furan carboxylic acids based on vinyl acetate." E3S Web of Conferences 549 (2024): 03014. http://dx.doi.org/10.1051/e3sconf/202454903014.

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Investigation of synthesized vinyl esters of several furancarboxylic acids: 2-furancarboxylic, 3-furancarboxylic, 5-formyl-2- furancarboxylic, 5-nitro-2-furanoic and 2,5-furandicarboxylic from vinyl acetate using the reaction vinyl substitution in the presence of the system: 2- chloro-4,6-dimethoxy-1,3,5-triazine, as well as Zn(OTf)2, 3,3’-Ph2BINOL- 2Li, KOtrBu and BuLi has been carried out. At the same time increasing of the catalytic activity of these systems was identified as following: 3,3’- Ph2BINOL-2Li < BuLi < KOtrBu < Zn(OTf)2. The influence of various factors on products yiel

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3

A.B., Parmanov, Nurmanov S.E., Tomash Maniecki, Ziyadullayev O.E., and Abdullayev J.U. "HOMOGENEOUS VINYLATION OF 2-HYDROXY-2 PHENYLETHANICAL ACID." International Journal of Research -GRANTHAALAYAH 6, no. 11 (2018): 350–54. http://dx.doi.org/10.29121/granthaalayah.v6.i11.2018.1138.

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Homogeneous-catalytical vinylation of 2-hydroxy-2-phenylethanical acid was carried out. Influence of catalylists nature, temperature and duration reaction on yield of synthesized vinyl ester has been investigated. basis of natural raw materials. Based on vinyl esters of carboxylic acids, their polymers and copolymers with unsaturated compounds of the ethylene series, emulsifiers for emulsion paints have been obtained; compounds that improve the viscosity of lubricating oils and are used as crosslinking agents in the rubber industry. Synthesis of vinyl esters based on monobasic aliphatic

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Parmanov, A.B., S.E. Nurmanov, Maniecki Tomash, O.E. Ziyadullayev, and J.U. Abdullayev. "HOMOGENEOUS VINYLATION OF 2-HYDROXY-2 PHENYLETHANICAL ACID." International Journal of Research - Granthaalayah 6, no. 11 (2018): 350–54. https://doi.org/10.5281/zenodo.2175500.

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Homogeneous-catalytical vinylation of 2-hydroxy-2-phenylethanical acid was carried out. Influence of catalylists nature, temperature and duration reaction on yield of synthesized vinyl ester has been investigated. basis of natural raw materials. Based on vinyl esters of carboxylic acids, their polymers and copolymers with unsaturated compounds of the ethylene series, emulsifiers for emulsion paints have been obtained; compounds that improve the viscosity of lubricating oils and are used as crosslinking agents in the rubber industry. Synthesis of vinyl esters based on monobasic aliphatic acids

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5

Sun, Jia Ying, Yan Qing Li, Wei Tian, and Cheng Yan Zhu. "Study on the Resin Curing Time and the Mechanical Properties of the Composites." Advanced Materials Research 602-604 (December 2012): 33–36. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.33.

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In order to study the curing characteristics of common resins including bisphenol-A epoxy vinyl ester resin, phenolic epoxy vinyl ester resin and unsaturated polyester resin, the curing time of three resins was tested using cobalt naphthenate as accelerator and methyl ethyl ketone peroxide as curing agent. The results showed that the resin curing time reduces with the experimental temperature rising; in order to control the curing time at about 25 minutes when the experimental temperature is 23°C, the curing agent adding proportion of bisphenol-A epoxy vinyl ester resin, unsaturated polyester

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6

Yang, Ruirui, Yating Wang, Xiaolu Ran, and Wanshuang Liu. "A Comparison Study on Toughening Vinyl Ester Resins Using Different Nanocarbon Materials." Polymers 15, no. 23 (2023): 4536. http://dx.doi.org/10.3390/polym15234536.

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This study aims to comprehensively compare and evaluate the toughening effects of different nanocarbon materials on vinyl ester resins. Four typical nanocarbon materials, including graphene, graphene oxide (GO), single-walled carbon nanotubes (SWCNTs), and multi-walled carbon nanotubes (MWCNTs), were used as reinforcing fillers for vinyl ester resins. These four nanocarbon materials were dispersed in the vinyl ester resin matrix by the combination of high-speed stirring and probe sonication, and their dispersion states were observed with optical microscopy. The effects of incorporating differe

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7

Sepet, Harun, and Necmettin Tarakçıoğlu. "Effect of nanoclay addition on mechanical and thermal behavior of vinyl ester based nanocomposites obtained by casting." World Journal of Engineering 11, no. 1 (2014): 1–8. http://dx.doi.org/10.1260/1708-5284.11.1.1.

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This paper presents the experimental study of mechanical and thermal properties of organically modified montmorillonite clay (Nanoclay) (0, 1, 2, 3, 4 and 5 wt.%) in the vinyl ester matrix by ultrasonic stirrer. The changes in mechanical properties are investigated by using tensile and impact testing machine. It was found that the addition of nanoclay particles significantly improved tensile properties of pure vinyl ester, but impact properties of pure vinyl ester were affected negatively with the nanoclay content in the nanocomposite. It was found that the absorbed energy and impact resistanc

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8

Mahesh, K. R. Vishnu, H. N. Narasimha Murthy, B. E. Kumara Swamy, N. Raghavendra, and M. Krishna. "Organomodified Clay and its Influence on Thermal and Fire Behaviors of Clay/Fire Retardant/Poly Vinyl Ester Composites." Key Engineering Materials 659 (August 2015): 468–73. http://dx.doi.org/10.4028/www.scientific.net/kem.659.468.

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The objective of this research was to examine the synergistic effect of organomodified nanoclay and fire retardants on the thermal decomposition, glass transition temperature and fire retardation behaviour of nanoclay/Poly vinyl ester composites. The two nanoclays such as Cloisite-15A and Cloisite-Na are used along with two fire retardants as Aluminium Tri Hydroxide (ATH) and Magnesium Hydroxide (MH) in the present study. The nanoclay/fire retardants were dispersed in poly vinyl ester using twin screw extrusion. TEM and AFM of nanoclay/Poly vinyl ester specimens revealed that 4 wt% Cloisite-15

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9

Thomason, James, and Georgios Xypolias. "A Study of the Moisture Absorption Characteristics of Vinyl Ester Polymer and Unidirectional Glass Fibre Vinyl Ester Laminates." Journal of Composites Science 8, no. 6 (2024): 214. http://dx.doi.org/10.3390/jcs8060214.

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Vinyl esters are increasingly being used as the matrix polymer in fibre-reinforced composites for demanding large applications which experience long-term exposure to moist and wet conditions. This paper presents the results of a study of ageing due to moisture absorption in vinyl ester polymer and glass fibre–vinyl ester laminates. The moisture uptake kinetics of the two neat VE polymers, cured at different conditions, and their glass-reinforced composites has been characterised by gravimetric methods. These studies have been carried out using submersion in water at 23 °C and 50 °C and exposur

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Jebrane, Mohamed, and Ivo Heinmaa. "Covalent fixation of boron in wood through transesterification with vinyl ester of carboxyphenylboronic acid." Holzforschung 70, no. 6 (2016): 577–83. http://dx.doi.org/10.1515/hf-2015-0118.

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Abstract Vinyl ester of 4-carboxyphenylboronic acid has been synthesized and tested as reactive reagent for permanent fixation of boron in wood based on an improved approach described previously. The essence of the method is a covalent incorporation of the boron compound via transesterification between wood hydroxyl groups and vinyl ester containing boron. The synthesis of this vinyl ester was accomplished by exchange reaction of vinyl acetate with 4-carboxyphenylboronic acid. The obtained vinyl ester of carboxyphenylboronic acid was characterized by FTIR and 1H-, and 13C-NMR spectroscopy. The

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11

Nusyirwan, Mutya Rani, and Rully Pratama. "Identification of the fracture surface of thermoset polyester due to bending load." Journal of Energy, Mechanical, Material, and Manufacturing Engineering 7, no. 1 (2022): 51–58. http://dx.doi.org/10.22219/jemmme.v7i1.23086.

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In this research, an attempt was made to improve the brittle nature of the Unsaturated Polyester (UP) polymer which cannot undergo plastic deformation to be improved to become more resilient by adding Thermoset Vinyl Ester and Methyl Methacrylate (MMA). To show the change in the toughness of the polyester material, a test is carried out to provide a tensile load and a flexural load until the material breaks This work reports the successful fabrication of polyester blends by mixing vinyl esters with different percentages. The test shows that there is a linear relationship between the shape of t

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Ranjan, Jagesh Kumar, Raghu Raja Pandiyan Kuppusamy, and Sudipta Goswami. "Studies on Viscoelastic, Thermal and Morphological Properties of Vinyl Ester – Mixed Diluents System." Archives of Metallurgy and Materials 62, no. 3 (2017): 1845–50. http://dx.doi.org/10.1515/amm-2017-0279.

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Abstract Vinyl ester resin networks formed by using mixture of diluents were prepared. Methyl methacrylate (MMA) diluent was mixed in various proportions with vinyl ester resin which was already premixed with styrene diluent (45 wt. %). Weight ratios e.g. 80:20, 70:30 and 60:40 of VE resin: MMA diluents were studied. Viscoelastic properties of the cross-linked resin were studied by dynamic mechanical analyzer in terms of storage modulus and tanδ. Thermal analysis was performed using non-isothermal mode of Differential scanning calorimetry. The samples with mixed diluents, showed higher modulus

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13

Suresha, B., T. Jayaraju, P. R. Sadananda Rao, Mohammed Ismail, and Kunigal N. Shivakumar. "Three-Body Abrasive Wear Behaviour of Fiber Reinforced Vinyl Ester Composites." Solid State Phenomena 136 (February 2008): 99–108. http://dx.doi.org/10.4028/www.scientific.net/ssp.136.99.

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Fiber reinforced polymer composites are generally known to possess high strength and attractive wear resistance in dry sliding conditions. The behaviour of such composites performing in abrasive wear situations needs a proper understanding. Hence, in the present work of the three-body abrasive wear behaviour of two dimensional stitched carbon fabric, E-glass woven fabric and three dimensional E-glass woven fabric reinforced vinyl ester composites was investigated. Three-body abrasive wear tests were conducted using rubber wheel abrasion tester (RWAT) under different abrading distances at two l

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Srivastava, Akanksha. "CURING AND DEGRADATION BEHAVIOR OF VINYL ESTERS OF CYCLOALIPHATIC EPOXY RESINS." International Journal of Advanced Research 10, no. 03 (2022): 944–49. http://dx.doi.org/10.21474/ijar01/14475.

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Curing and degradation behavior of two unsaturated esters based on cycloaliphatic epoxy resin containing glycidyl epoxy group (C1E) and epoxy cyclohexane group (C2E)were studied using DSC and TGA Techniques. DSC thermograms of ester C1E and C2E mixed with reactive styrene (40% w/w) and initiator benzoyl peroxide (2%) shows that the curing of ester C2E takes place at higher temperature range in comparison to C1E due to their dense rigid structure. The degradation behavior of cured esters are studied using thermal analyst 2000 equipped with 2950 thermal gravimetric analysis at heating rate 100C

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Srivastava, Akanksha. "CURING AND DEGRADATION BEHAVIOR OF VINYL ESTERS OF CYCLOALIPHATIC EPOXY RESINS." International Journal of Advanced Research 10, no. 03 (2022): 944–49. http://dx.doi.org/10.21474/ijar01/14475.

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Curing and degradation behavior of two unsaturated esters based on cycloaliphatic epoxy resin containing glycidyl epoxy group (C1E) and epoxy cyclohexane group (C2E)were studied using DSC and TGA Techniques. DSC thermograms of ester C1E and C2E mixed with reactive styrene (40% w/w) and initiator benzoyl peroxide (2%) shows that the curing of ester C2E takes place at higher temperature range in comparison to C1E due to their dense rigid structure. The degradation behavior of cured esters are studied using thermal analyst 2000 equipped with 2950 thermal gravimetric analysis at heating rate 100C

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16

SEGAWA, Sadao, Norio INOUE, and Yoshimi NAGAI. "Determination of vinyl ester in vinyl chloride/vinyl ester copolymers by pyrolysis-ion exchange chromatography." Bunseki kagaku 35, no. 5 (1986): 471–75. http://dx.doi.org/10.2116/bunsekikagaku.35.5_471.

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17

Park, Hyun Bum. "Experimental Test of Compressive Strength after Impact Damage of Natural Composite Laminate." Key Engineering Materials 713 (September 2016): 277–79. http://dx.doi.org/10.4028/www.scientific.net/kem.713.277.

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In this study, structural design and analysis of the automobile bonnet is performed. The flax/vinyl ester composite material is applied for structural design. The Vacuum Assisted Resin Transfer Molding (VARTM) manufacturing method is adopted for manufacturing the flax fiber composite bonnet. A series of flax/vinyl ester composite panels are manufactured, and several kinds of specimens cut out from the panels are tested to obtain mechanical performance data. Based on this, preliminary structural design of the automobile bonnet is performed. Finally, this study is to investigate the residual com

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18

Pajarito, Bryan B., Masatoshi Kubouchi, Hiroyuki Tomita, and Saiko Aoki. "Microstructural Dependency of Diffusion in Glass Flake-Reinforced Vinyl Ester Resins." ASEAN Journal of Chemical Engineering 12, no. 1 (2012): 11. http://dx.doi.org/10.22146/ajche.49751.

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Vinyl ester resins are utilized for long-term corrosion protection of metal, alloy, and concrete substrates against concentrated acids, alkalis, and solvents at high temperature. Glass flakes are usually added as fillers to reduce chemical diffusion within the vinyl ester matrix. A common industry practice is to use glass flakes with large aspect ratio, high volume fraction, and in parallel alignment to surface in chemical contact for barrier applications. During processing and curing of glass flake-filled vinyl ester resins, irregular microstructures such as reduced flake aspect ratio and ran

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19

YALÇIN, Fethiye, Mustafa ÖZCANLI, and Berkay KARACOR. "İki Farklı Reçine Kullanılarak Oluşturulan Hibrit Kompozit Malzemelerin Araç Tamponlarında Kullanımının Araştırılması." Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi 7, no. 2 (2024): 751–66. http://dx.doi.org/10.47495/okufbed.1330221.

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As efforts to reduce vehicle weight in today's vehicles accelerate, efforts to find new types of materials that can replace traditional materials have accelerated. In this study, carbon fiber was used as a reinforcement element together with glass fiber for lightening in vehicle bumpers. While vinyl ester and polyester were chosen as the matrix material for the piece to be produced, production was made by the hand lay-up method. The produced samples were first subjected to tensile test and their mechanical values were determined. The mechanical test results were introduced to the ANSYS program

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Cotet, Adrian, Marian Bastiurea, Gabriel Andrei, Alina Cantaragiu, and Anton Hadar. "Mechanical And Thermal Behavior of Carbon Nanotubes/Vinyl Ester Nanocomposites." Materiale Plastice 56, no. 4 (2019): 735–43. http://dx.doi.org/10.37358/mp.19.4.5261.

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Single walled carbon nanotubes (SWCNT) and multi walled carbon nanotubes (MWCNT)/ vinyl ester nanocomposites with three different contents of carbon nanotubes (CNTs) have been prepared by the simple melt-compounding method. A fine and homogeneous dispersion of CNTs throughout vinyl ester resin has been noticed by SEM images. Two mechanical tests (compression and three point bending test) show that, compared to neat vinyl ester resin, compression modulus and compression strength of the nanocomposites have been significantly improved by about 9% and 14%, respectively, when incorporating only 0.1

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Srivastava, Akanksha. "DECOMPOSITION OF VINYL ESTERS OF CYCLOALIPHATIC EPOXY RESINS: A KINETIC STUDY." International Journal of Advanced Research 13, no. 02 (2025): 1321–28. https://doi.org/10.21474/ijar01/20495.

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Degradation behaviour of two methaacrylate terminated cycloaliphatic epoxy resins containing glycidyl epoxy group C1E and epoxycyclohexane group C2E were studied using thermogrametric analysis TGA techniques. The esters were cured by using styrene as diluent(40% w/w) and benzoyl peroxide as free radical indicator (2% w/w). The TG and DTG thermograms of both esters show single step degradation. The order of degradation reaction was found to be one for both esters. This was calculated using Coat and Redfern equation in accordance with best fit analysis and further confirm by linear regression an

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22

Alkhader, Maen, Xuedong Zhai, and Fu-Pen Chiang. "Experimental investigation of the synergistic effects of moisture and freeze-thaw cycles on carbon fiber vinyl-ester composites." Journal of Composite Materials 52, no. 7 (2017): 919–30. http://dx.doi.org/10.1177/0021998317715703.

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Carbon fiber-reinforced vinyl-ester polymer composites are increasingly used as structural members in applications (e.g., marine crafts and offshore structures) where they can be frequently exposed to the environmental elements of moisture and cold temperature fluctuations that cause freeze-thaw cycles. These harsh elements can individually and possibly synergistically damage carbon fiber-reinforced vinyl-ester composites. More importantly, their damage can accumulate over time and significantly degrade the structural properties, long-term integrity and durability of carbon fiber-reinforced vi

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23

Shenai, Bhaskar R., Belinda J. Lee, Alejandro Alvarez-Hernandez, et al. "Structure-Activity Relationships for Inhibition of Cysteine Protease Activity and Development of Plasmodium falciparum by Peptidyl Vinyl Sulfones." Antimicrobial Agents and Chemotherapy 47, no. 1 (2003): 154–60. http://dx.doi.org/10.1128/aac.47.1.154-160.2003.

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ABSTRACT The Plasmodium falciparum cysteine proteases falcipain-2 and falcipain-3 appear to be required for hemoglobin hydrolysis by intraerythrocytic malaria parasites. Previous studies showed that peptidyl vinyl sulfone inhibitors of falcipain-2 blocked the development of P. falciparum in culture and exerted antimalarial effects in vivo. We now report the structure-activity relationships for inhibition of falcipain-2, falcipain-3, and parasite development by 39 new vinyl sulfone, vinyl sulfonate ester, and vinyl sulfonamide cysteine protease inhibitors. Levels of inhibition of falcipain-2 an

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Yong, Virginia, and H. Thomas Hahn. "Monodisperse SiC/vinyl ester nanocomposites: Dispersant formulation, synthesis, and characterization." Journal of Materials Research 24, no. 4 (2009): 1553–58. http://dx.doi.org/10.1557/jmr.2009.0176.

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A novel dispersant “mono-2-(methacryloyloxy)ethyl succinate” was formulated for dispersing 30-nm SiC nanoparticles in vinyl ester resin. The eight carbon rule was used as the guideline to achieve a particle–particle separation of 20 to 60 nm for colloid stability. Fourier transform infrared spectroscopy was performed to characterize the SiC particle surfaces. Only a negligible amount of oxidized layer was observed; which illustrates that the SiC surface is basic. Thus, the Lewis base-Lewis acid reactions make the functional group –COOH an effective adsorbate to the SiC nanoparticle surface. Th

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Jin, Nan Ji, Kyu-Seok Yeon, Seung-Ho Min, and Jaeheum Yeon. "Using the Maturity Method in Predicting the Compressive Strength of Vinyl Ester Polymer Concrete at an Early Age." Advances in Materials Science and Engineering 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/4546732.

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The compressive strength of vinyl ester polymer concrete is predicted using the maturity method. The compressive strength rapidly increased until the curing age of 24 hrs and thereafter slowly increased until the curing age of 72 hrs. As the MMA content increased, the compressive strength decreased. Furthermore, as the curing temperature decreased, compressive strength decreased. For vinyl ester polymer concrete, datum temperature, ranging from −22.5 to −24.6°C, decreased as the MMA content increased. The maturity index equation for cement concrete cannot be applied to polymer concrete and the

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Farahani, Hosein Zanjirani, Atiye Farahani, Pouyan Fakharian, and Danial Jahed Armaghani. "Experimental Study on Mechanical Properties and Durability of Polymer Silica Fume Concrete with Vinyl Ester Resin." Materials 16, no. 2 (2023): 757. http://dx.doi.org/10.3390/ma16020757.

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Polymer concrete, which contains silica fume powder and vinyl ester resin as two replacements for Portland cement, has improved mechanical properties and durability compared to ordinary concrete. Thus, this kind of concrete is considered to be a high-strength concrete that is resistant to corrosion and chemical attacks. In this paper, the effects of the combination of silica fume powder and vinyl ester resin as two Portland cement replacements on the workability and slump value, initial and final water absorption, compressive and tensile strength, and failure and fracture paths of the polymer

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Bassyouni, Mohamed, Shereen M. S. Abdel-Hamid, Mohamed H. Abdel-Aziz, and M. Sh Zoromba. "Characterization of Vinyl Ester/Jute Fiber Bio-Composites in the Presence of Multi-Walled Carbon Nanotubes." Key Engineering Materials 730 (February 2017): 221–25. http://dx.doi.org/10.4028/www.scientific.net/kem.730.221.

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In this study, vinyl ester –Jute fiber biocomposites were prepared using vacuum-assisted resin infusion (VARI) process. Woven Jute fibers were used with mass fraction 0.68. Multi-walled carbon nanotubes (MWCNTs) are added to the resin with weight ratio 0.5: 99.5 to investigate the thermo-mechanical properties of bio-composites. Storage and loss modulus of vinyl ester bio-composites were investigated in the presence MWCNTs over a range of temperature (25 to 160 oC) to measure the capacity of bio-composite to store and dissipate energy. Damping properties of vinyl ester bio-composites were studi

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Rizal, Samsul, Abdul Khalil H.P.S., E. M. Mistar, et al. "Functional Properties of Kenaf Bast Fibre Anhydride Modification Enhancement with Bionanocarbon in Polymer Nanobiocomposites." Polymers 13, no. 23 (2021): 4211. http://dx.doi.org/10.3390/polym13234211.

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The miscibility between hydrophilic biofibre and hydrophobic matrix has been a challenge in developing polymer biocomposite. This study investigated the anhydride modification effect of propionic and succinic anhydrides on Kenaf fibre’s functional properties in vinyl ester bionanocomposites. Bionanocarbon from oil palm shell agricultural wastes enhanced nanofiller properties in the fibre-matrix interface via the resin transfer moulding technique. The succinylated fibre with the addition of the nanofiller in vinyl ester provided great improvement of the tensile, flexural, and impact strengths o

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Nasrulhaq-Boyce, A., W. T. Griffiths, and O. T. G. Jones. "The use of continuous assays to characterize the oxidative cyclase that synthesizes the chlorophyll isocyclic ring." Biochemical Journal 243, no. 1 (1987): 23–29. http://dx.doi.org/10.1042/bj2430023.

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A continuous spectroscopic assay has been developed for magnesium protoporphyrin monomethyl ester oxidative cyclase, which records either the dark formation of both free and protein-bound magnesium phaeoporphyrin or, following flash illumination, its corresponding chlorin. The properties of the enzyme were studied in wheat etioplasts. When plastids were pre-illuminated in the presence of NADPH all endogenous protochlorophyllide was converted into chlorophyllide and the product of dark incubation with magnesium protoporphyrin monomethyl ester was protein-bound magnesium 2-vinyl phaeoporphyrin a

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30

Rao, B. S., P. J. Madec, and E. Marechal. "Synthesis of vinyl ester resins." Polymer Bulletin 16, no. 2-3 (1986): 153–57. http://dx.doi.org/10.1007/bf00955485.

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Obaid, A. Abu, A. Gokce, S. Yarlagadda, and S. G. Advani. "Enhancement of adhesion between copper and vinyl ester in glass fiber–vinyl ester composites." Composite Interfaces 14, no. 2 (2007): 99–116. http://dx.doi.org/10.1163/156855407779819008.

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Roka, Nikoletta, Theodosia-Panagiota Papazoglou, and Marinos Pitsikalis. "Block Copolymers of Poly(N-Vinyl Pyrrolidone) and Poly(Vinyl Esters) Bearing n-alkyl Side Groups via Reversible Addition-Fragmentation Chain-Transfer Polymerization: Synthesis, Characterization, and Thermal Properties." Polymers 16, no. 17 (2024): 2447. http://dx.doi.org/10.3390/polym16172447.

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Amphiphilic block copolymers of N-vinyl pyrrolidone (NVP) and various vinyl esters (VEs), PNVP-b-PVEs, namely vinyl butyrate (VBu), vinyl decanoate (VDc), and vinyl stearate (VSt), were synthesized through RAFT polymerization techniques. The sequential addition of the monomers methodology was employed starting from the polymerization of NVP followed by the polymerization of the Ves’ monomer. The polymerization of NVP was conducted at 60 °C in benzene solution using AIBN as the initiator and O-ethyl S-(phthalimidylmethyl) xanthate as the CTA. The resulting PNVP macro-CTA was further applied for

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Mohaddespour, Ahmad, Seyed J. Ahmadi, Hossein Abolghassemi, Seyed M. Mahjoub, and Saeid Atashrouz. "Irradiation of poly(vinyl ester)/clay nanocomposites." Journal of Composite Materials 52, no. 1 (2017): 17–25. http://dx.doi.org/10.1177/0021998317701999.

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The effect of electron beam irradiation on pristine poly(vinyl ester) and cured poly(vinyl ester)/clay nanocomposite with different clay contents is studied at irradiation doses ranging from 100 to 1000 kGy at room temperature. Poly(vinyl ester)/clay nanocomposites were prepared with different amounts of organically modified montmorillonite (1, 3, and 5 wt.%) by in situ polymerization method. Morphology properties of synthesized nanocomposites were studied by X-ray diffraction and transition electron microscopy. The irradiation dose up to 500 kGy yields an increase in Young’s modulus and tensi

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Oeser, Petr, Jakub Koudelka, Hana Dvořáková та Tomáš Tobrman. "Formation of trisubstituted buta-1,3-dienes and α,β-unsaturated ketones via the reaction of functionalized vinyl phosphates and vinyl phosphordiamidates with organometallic reagents". RSC Advances 10, № 58 (2020): 35109–20. http://dx.doi.org/10.1039/d0ra07472a.

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Ku, H., Mohan Trada, and V. C. Puttgunta. "Mechanical Properties of Vinyl Ester Composites Cured by Microwave Irradiation: Pilot Study." Key Engineering Materials 334-335 (March 2007): 537–40. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.537.

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Composite components made from vinyl ester resins by Centre of Excellence in Engineered Fiber Composites (CEEFC), University of Southern Queensland (USQ) suffer considerable shrinkage during hardening. Currently, CEEFC solves the shrinkage problem by breaking a large composite component into smaller composite parts because smaller parts tend to have less shrinkage. These smaller parts are then joined together to form the overall structure. The shrinkage of vinyl ester particulate composites has been reduced by curing the resins under microwave conditions. The reduction in the shrinkage of the

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Saketharaman, K., C. M. Meenakshi, and D. Ravi. "Analyzing the Life Prediction of Spur Gear based on Vinyl Ester with Different Fibre Proportion." Journal of Physics: Conference Series 2272, no. 1 (2022): 012014. http://dx.doi.org/10.1088/1742-6596/2272/1/012014.

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Abstract The gear is an essential part of every mechanical power transmission system, as well as most industrial rotating machinery. Gears may grow to dominate as the most effective mechanism for transmitting power in future machines due to their high degree of durability and compactness. The vinyl ester resin have high strength and low frictional of porous carbon material. The Vinyl ester resin is used as a reinforced material in plastic gear. In this work, Vinyl Ester and Glass fiber composite material with different proportions were equipped for strengthen cast plastic gear. The spur gear p

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Pramanik, Brahmananda, and P. Raju Mantena. "Strain Rate Dependent Ductile-to-Brittle Transition of Graphite Platelet Reinforced Vinyl Ester Nanocomposites." Advances in Materials Science and Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/765698.

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In previous research, the fractal dimensions of fractured surfaces of vinyl ester based nanocomposites were estimated applying classical method on 3D digital microscopic images. The fracture energy and fracture toughness were obtained from fractal dimensions. A noteworthy observation, the strain rate dependent ductile-to-brittle transition of vinyl ester based nanocomposites, is reinvestigated in the current study. The candidate materials of xGnP (exfoliated graphite nanoplatelets) reinforced and with additional CTBN (Carboxyl Terminated Butadiene Nitrile) toughened vinyl ester based nanocompo

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Liu, Di, and Christopher W. Bielawski. "Post-polymerization modification of poly(vinyl ether)s: a Ru-catalyzed oxidative synthesis of poly(vinyl ester)s and poly(propenyl ester)s." Polymer Chemistry 7, no. 1 (2016): 63–68. http://dx.doi.org/10.1039/c5py01409c.

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Wonderly, Christopher, Joachim Grenestedt, Göran Fernlund, and Elvis Cěpus. "Comparison of mechanical properties of glass fiber/vinyl ester and carbon fiber/vinyl ester composites." Composites Part B: Engineering 36, no. 5 (2005): 417–26. http://dx.doi.org/10.1016/j.compositesb.2005.01.004.

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Zhang, Hua Yong, Hua Xu, and Cong Sheng Guan. "Effecting Factors on Conductivity of EG/VER Conductive Composite." Advanced Materials Research 833 (November 2013): 322–25. http://dx.doi.org/10.4028/www.scientific.net/amr.833.322.

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Vinyl ester resin (VER) has excellent corrosion resistance, mechanical properties, and lower viscosity before curing. In this article low filled conductive composites were fabricated with expanded graphite (EG) and vinyl ester resin (VER). The influences of soaking time, rabbling intensity, the EG content and the coupling agent dosage on the electric conductivity were investigated. The results can provide good reference for the following bipolar plate researches.

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Khalili, Amirali, Abdul Razak Rahmat, Alireza Fakhari, and Zyad Salem Alsagayar. "Mechanical Properties of Vinyl Ester Resin/Epoxidized Plam Oil/Nanoclay Composite." Applied Mechanics and Materials 554 (June 2014): 165–69. http://dx.doi.org/10.4028/www.scientific.net/amm.554.165.

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The aim of this study is to develop vinyl ester resin (VE) with enhanced mechanical and thermal properties. Nanocomposites vinyl ester resin (VE)/ epoxidized palm oil (EPO)/ clay were prepared at different amount of epoxidized palm oil (EPO) (5, 7.5 and 10 wt%) in presence of various ratio of clay (1,2 and 3 phr) by free radical polymerization. The curing agent for polymerizing nanocomposites was methyl ethyl ketone peroxide (MEKP). Studies on their mechanical and physical properties were carried out by tensile and flexural tests. The results obtained revealed interactions between the vinyl es

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Taha Tijerina, José Jaime, Laura Peña Parás, Antonio Sánchez Fernández, Demófilo Maldonado Cortés, Pablo Sarmiento Barbosa, and Jesús Rolando Adán López. "Synergistic effect of nanocoatings for corrosion and wear protection of steel surfaces." Ingeniería Investigación y Tecnología 20, no. 4 (2019): 1–9. http://dx.doi.org/10.22201/fi.25940732e.2019.20n4.040.

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The purpose of this paper is to evaluate the corrosion and wear protection of a steel substrate by epoxy vinyl ester nanocomposite coatings with Zn and TiO2 nanoparticle fillers. Steel substrates were coated with epoxy vinyl ester nanocomposites, varying Zn and TiO2 nanofiller concentrations and combinations of both nanoparticles. Corrosion resistance was evaluated by salt spray fog test during 480h, according to ASTM B-117. The degree of damage was obtained quantitatively by measuring the enhancement in corroded area compared to the scribe mark. Tribological evaluation was performed with a ba

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Fakhari, Alireza, Abdul Razak Rahmat, Mat Uzir Wahit, Siti Noor Hidayah Mustapha, and Wan Nurhayati Wan Tajulruddin. "Mechanical Properties of Hybrid Thermosets from Vinyl Ester Resin and Acrylated Epoxidized Palm Oil (AEPO)." Applied Mechanics and Materials 695 (November 2014): 73–76. http://dx.doi.org/10.4028/www.scientific.net/amm.695.73.

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A series of green hybrid thermosetting resins composed of acrylated epoxidized palm oil (AEPO) and vinyl ester (VE) were prepared via free radical polymerization. The AEPO/VE ratio was varied between 5/95 and 20/80 wt.%. The mechanical properties of resulting hybrid systems were investigated by tensile and flexural tests. The results revealed that these hybrids exhibit mechanical properties comparable to those of commercial vinyl ester resins.

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Oleiwi, Jawad K., and Reem Alaa Mohammed. "Comparison of the Wear Behavior and Hardness of Vinylester Resin Reinforced by Glass Fiber and Nano ZrO2 and Fe3O4." Revue des composites et des matériaux avancés 31, no. 6 (2021): 325–33. http://dx.doi.org/10.18280/rcma.310603.

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The current trend in scientific researches is to improve the performance of mechanical and physical properties of polymeric compounds, one of these methods is to add nanoparticles to polymeric composites. In this work, the wear behaviour (pin to disc) of nanocomposites composed of vinyl ester reinforced glass fibers and nanoparticles was evaluated under three different factors, such as specimen content, load applied, and distance sliding using a sliding time constant, as well as studying the hardness shore for these nanocomposites. The (hand-lay) method was used for the purpose of preparing th

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Makino, Hiroshi, Tsuyoshi Nishikawa, and Makoto Ouchi. "Vinylboronic acid pinacol ester as a vinyl alcohol-precursor monomer in radical copolymerization with styrene." Chemical Communications 57, no. 60 (2021): 7410–13. http://dx.doi.org/10.1039/d1cc02603h.

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Radical copolymerization of vinylboronic acid pinacol ester (VBpin) with styrene allowed the syntheses of vinyl alcohol–styrene copolymers, which have been inaccessible with a typical precursor monomer, vinyl acetate.

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Ai, Xiaoqing, Jiansen Pan, Qingyi Xie, Chunfeng Ma, and Guangzhao Zhang. "UV-curable hyperbranched poly(ester-co-vinyl) by radical ring-opening copolymerization for antifouling coatings." Polymer Chemistry 12, no. 31 (2021): 4524–31. http://dx.doi.org/10.1039/d1py00810b.

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UV-curable hyperbranched poly(ester-co-vinyl) has been prepared by radical ring-opening copolymerization of cyclic monomers and vinyl monomers, and it exhibits tunable degradation and fouling resistance.

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Bakar, Norliana, and Siew Choo Chin. "Performance of Bamboo Fiber Reinforced Composites: Mechanical Properties." Key Engineering Materials 879 (March 2021): 284–93. http://dx.doi.org/10.4028/www.scientific.net/kem.879.284.

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Fiber Reinforced Polymer (FRP) made from synthetic fiber had been widely used for strengthening of reinforced concrete (RC) structures in the past decades. Due to its high cost, detrimental to the environment and human health, natural fiber composites becoming the current alternatives towards a green and environmental friendly material. This paper presents an investigation on the mechanical properties of bamboo fiber reinforced composite (BFRC) with different types of resins. The BFRC specimens were prepared by hand lay-up method using epoxy and vinyl-ester resins. Bamboo fiber volume fraction

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Nusyirwan, Nusyirwan, Hayatul Fikri, and Xhycho Vachanidyo. "Method of Increasing the Fracture Toughness of Unsaturated Polyester with the Addition of Vinyl Ester as a Material for Automotive Body." American Journal of Materials Synthesis and Processing 9, no. 1 (2024): 1–9. http://dx.doi.org/10.11648/j.ajmsp.20240901.11.

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Unsaturated polyester is the polymer material most widely used for matrix composites in the field of construction engineering, including for ships, automotive components and other engineering fields. The weakness of this polymer is that it is brittle and brittle and is unable to withstand cracking loads due to having cross-linked molecules that easily link together. The study to improve it was mixing with vinyl ester which succeeded in making the polyester crack resistant which was tested using a CTM machine and the fracture was observed using an SEM microscope. The test results showed that th

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Chen, Hong Yan, Zhen Xing Kong, and Ji Hui Wang. "Cure and Dynamic-Mechanical Behaviors of Vinyl Ester Resinfilled with Multi-Walled Carbon Nanotubes." Advanced Materials Research 150-151 (October 2010): 1413–16. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.1413.

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The cure kinetics of Derakane 411-350, a kind of vinyl ester resin, and its suspensions containing multi-walled carbon nanotubes( MWCNTs) were investigated via non-isothermal dynamic scanning calorimetry (DSC) measurements. The results showed that incorporation of MWCNTs into vinyl ester resin excessively reduces polymerization degree and crosslinking density of vinyl ester resin. For suppressing the negative effect caused by nanotubes, the higher temperature initiator combined with the initiator MEKP was used. Dynamic-mechanical Behavior testing was then carried out on the cured sample in ord

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Sun, Ying, and Guo Jun Wang. "Compressive Response of UHMWPE/Vinyl Ester 3D Orthogonal Woven Composites at High Strain Rates." Advanced Materials Research 97-101 (March 2010): 522–25. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.522.

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The high strain rate compressive properties of UHMWPE/ vinyl ester 3D orthogonal woven composites are investigated experimentally. The composites are made from UHMWPE fiber 3D orthogonal woven preforms impregnated with vinyl ester resin by resin transfer molding. The samples are subjected to dynamic loading through the thickness direction using the Split Hopkinson Pressure Bar at three kinds of strain rate. The testing results are compared with the results of quasi-static tests on specimens with the same fiber volume fraction. The stress-strain relationships of UHMWPE/vinyl ester 3D orthogonal

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