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Journal articles on the topic 'Polyesters Mechanical properties'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Zhao, Peng, Wanqiang Liu, Qingsheng Wu, and Jie Ren. "Preparation, Mechanical, and Thermal Properties of Biodegradable Polyesters/Poly(Lactic Acid) Blends." Journal of Nanomaterials 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/287082.

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Series of biodegradable polyesters poly(butylene adipate) (PBA), poly(butylene succinate) (PBS), and poly(butylene adipate-co-butylene terephthalate) (PBAT) were synthesized successfully by melt polycondensation. The polyesters were characterized by Fourier transform infrared spectroscopy (FTIR),1H-NMR, differential scanning calorimetry (DSC), and gel permeation chromatography (GPC), respectively. The blends of poly(lactic acid) (PLA) and biodegradable polyester were prepared using a twin screw extruder. PBAT, PBS, or PBA can be homogenously dispersed in PLA matrix at a low content (5–20 wt%),

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2

Lang, Kening, Regina J. Sánchez-Leija, Richard A. Gross, and Robert J. Linhardt. "Review on the Impact of Polyols on the Properties of Bio-Based Polyesters." Polymers 12, no. 12 (2020): 2969. http://dx.doi.org/10.3390/polym12122969.

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Bio-based polyol polyesters are biodegradable elastomers having potential utility in soft tissue engineering. This class of polymers can serve a wide range of biomedical applications. Materials based on these polymers are inherently susceptible to degradation during the period of implantation. Factors that influence the physicochemical properties of polyol polyesters might be useful in achieving a balance between durability and biodegradability. The characterization of these polyol polyesters, together with recent comparative studies involving creative synthesis, mechanical testing, and degrad

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3

Fakirov, Stoyko, Michail Evstatiev, and Jerold M. Schultz. "Polyamides and polyesters with improved mechanical properties." Journal of Applied Polymer Science 42, no. 3 (1991): 575–81. http://dx.doi.org/10.1002/app.1991.070420302.

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4

Zhang, Chuan Ji, and Zhi Xiong Huang. "Synthesis and Characterization of Thermotropic Liquid Crystalline Polyesters/Glass Fiber by In Situ Process." Advanced Materials Research 79-82 (August 2009): 1435–38. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1435.

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Liquid crystalline polyesters containing central biphenylene moiety in the mesogenic unit with ester linkages to the different lengths of flexible spacers were synthesized using melt polycondensation reaction. Glass fiber, as a reinforce, was meltpolymerized with 4-acetoxybenzoic(ABA),4,4＇-diacetoxybiphenyl and terephthalic acid(TA) to make TLCPs with a good mechanical properties. All the obtained compounds were characterized by conventional spectroscopic methods. The thermal behavior of the polymers has been characterized using polarized optical microscopy and differential scanning calorimetr

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5

Schmidt, Stephen J., Brian D. Holt, Anne M. Arnold, and Stefanie A. Sydlik. "Polyester functional graphenic materials as a mechanically enhanced scaffold for tissue regeneration." RSC Advances 10, no. 14 (2020): 8548–57. http://dx.doi.org/10.1039/c9ra10646d.

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Polyesters are a promising class of biocompatible polymer, however, their mechanical properties fall short of metals and ceramics. This paper covalently binds polyesters to graphenic moieties resulting in enhanced mechanical properties.

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6

Fakhari, Alireza, Abdul Razak Rahmat, Mat Uzir Wahit, Amirali Khalili, and Zyad Salem Alsagayar. "Curing and Mechanical Properties of Bio-Based Hybrid Thermoset Resins from Unsaturated Polyester and Acrylated Epoxidized Palm Oil." Advanced Materials Research 1113 (July 2015): 23–27. http://dx.doi.org/10.4028/www.scientific.net/amr.1113.23.

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In this study a series of green thermoset resins have been produced from blending acrylated epoxidized palm oil (AEPO) and unsaturated polyester (UPE). The UPE/AEPO ratio was changed between 90/10 and 70/30 wt%. The curing behavior and morphology of hybrid systems were investigated by differential scanning calorimeter (DSC) and Scanning electron microscope (SEM). Moreover, studies on mechanical properties were performed by tensile and flexural tests. The results revealed that, these green thermoset resins exhibit thermo mechanical properties comparable to those of commercial unsaturated polyes

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7

Vasava, Dilipkumar V., and Saurabh K. Patel. "Synthesis, Characterization and Study of Thermally Stable Fluorescent Polyesters." International Letters of Chemistry, Physics and Astronomy 70 (September 2016): 48–62. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.70.48.

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Abstract: Numerous polyesters containing heterocyclic ring have been synthesized by the polycondensation method. Ten Polyesters were synthesised having different aliphatic-aromatic diols in the chain having s-triazine ring as main moiety. The polyesters were synthesized by polycondensation of 6-(N-Piperidinyl)-2,4-bis-(7-Hydroxy-Coumarin-3-carbonyl Chloride)-1,3,5-triazine [PCTC] with aliphatic and aromatic diols. Dark brown, light brown, golden and maroon colour showed by novel synthesized polyesters. The solubility of synthesized polyesters was observed in different solvents. The viscosity w

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8

Hadavand, Behzad Shirkavand, Farhood Najafi, Mohammad Reza Saeb, and Alireza Malekian. "Hyperbranched polyesters urethane acrylate resin." High Performance Polymers 29, no. 6 (2017): 651–62. http://dx.doi.org/10.1177/0954008317696566.

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In the present study, response surface methodology is used to synthesize hyperbranched polyesters based on variables reaction time, ratio of monomer to core, and type of catalyst. Then, the synthesized polyesters were used for preparing hyperbranched urethane acrylates in two steps. In order to characterize these polymers, infrared spectroscopy and proton nuclear magnetic resonance is used. Hyperbranched urethane acrylates were formulated and cured by ultraviolet irradiation. Finally, dynamic mechanical thermal analysis (DMTA) test is used to investigate the viscoelastic properties of the coat

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9

IWATA, Tadahisa. "Structure, Mechanical Properties and Biodegradability of Microbial Polyesters." Nihon Kessho Gakkaishi 55, no. 3 (2013): 188–96. http://dx.doi.org/10.5940/jcrsj.55.188.

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10

G[ubar]nd[ubar]z, G[ubar]ng[obar]r, and Adnan Deniz. "Improvement of Mechanical Properties of Unsaturated Polyesters by Acrylonitrile." Polymer-Plastics Technology and Engineering 31, no. 3-4 (1992): 221–27. http://dx.doi.org/10.1080/03602559208017744.

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11

Zhang, H., G. R. Davies, and I. M. Ward. "Mechanical properties of thermotropic liquid crystalline polyesters and polyamides." Polymer 33, no. 13 (1992): 2651–58. http://dx.doi.org/10.1016/0032-3861(92)90434-x.

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12

Latos-Brozio, Malgorzata, and Anna Masek. "Biodegradable Polyester Materials Containing Gallates." Polymers 12, no. 3 (2020): 677. http://dx.doi.org/10.3390/polym12030677.

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Gallates are widely used as antioxidants in the food and cosmetics industries. The purpose of the study was to obtain pro-ecological materials based on biodegradable polyesters, such as polylactide (PLA) and polyhydroxyalkanoate (PHA), and gallates. Gallates (ethyl, propyl, octyl, and lauryl) have not been used so far in biodegradable polymers as stabilizers and indicators of aging. This manuscript examines the properties of gallates such as antioxidant capacity and thermal stability. This paper also presents the following analyses of polymer materials: specific migration of gallates from poly

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13

Ivorra-Martinez, Juan, Isabel Verdu, Octavio Fenollar, Lourdes Sanchez-Nacher, Rafael Balart, and Luis Quiles-Carrillo. "Manufacturing and Properties of Binary Blend from Bacterial Polyester Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) and Poly(caprolactone) with Improved Toughness." Polymers 12, no. 5 (2020): 1118. http://dx.doi.org/10.3390/polym12051118.

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Polyhydroxyalkanoates (PHAs) represent a promising group of bacterial polyesters for new applications. Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH) is a very promising bacterial polyester with potential uses in the packaging industry; nevertheless, as with many (almost all) bacterial polyesters, PHBH undergoes secondary crystallization (aging) which leads to an embrittlement. To overcome or minimize this, in the present work a flexible petroleum-derived polyester, namely poly(ε-caprolactone), was used to obtain PHBH/PCL blends with different compositions (from 0 to 40 PCL wt %) using e

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14

Yang, Dong Ya, Li Han, Han Qing Zhang, and Feng Xian Qiu. "Investigation of Hyperbranced Polyesters with Different Generation and their Application in Waterborne Polyurethanes." Applied Mechanics and Materials 152-154 (January 2012): 91–96. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.91.

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The 1st, 2nd and 3rd generations of hydroxyl-terminated hyperbranched polyesters (HBPE-1, HBPE-2, and HBPE-3) were synthesized. A3rd generation hyperbranched polyester (HBPE-3) was used as original crosslinking agent to prepared hyperbranched waterborne polyurethane dispersions (HPU). FTIR spectra confirmed that this reaction really took place. The experimental data indicated that, compared with the linear one, the hyperbranched HPU aqueous dispersions exhibited lower viscosity, and larger particle size. For the hyperbranched HPU films, mechanical properties were obviously enhanced.

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15

Kim, Ye Jin, Gyung Don Kang, Ki Cheol Yoon, and O. Ok Park. "Comparison of mechanical properties of blended and synthesized biodegradable polyesters." Macromolecular Research 22, no. 4 (2014): 382–87. http://dx.doi.org/10.1007/s13233-014-2059-0.

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16

Lee, Hee Young, Heidy Cruz, and Younggon Son. "Effects of incorporation of polyester on the electrical resistivity of polycarbonate/multi-walled carbon nanotube nanocomposite." Journal of Composite Materials 53, no. 10 (2018): 1291–98. http://dx.doi.org/10.1177/0021998318801932.

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In this work, we present the effect of incorporation of polyester on the electrical properties of injection-molded polycarbonate/multi-walled carbon nanotube nanocomposites. The study was conducted by melt-mixing polycarbonate, multi-walled carbon nanotube, and three types of polyesters: polybutylene terephthalate, polyethylene terephthalate, and liquid crystal polymer. It was found that the volume resistivities of injection-molded composites containing 2 phr polyester significantly decreased because of the transesterification reaction between the polycarbonate and polyester. The resulting pol

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17

Ali, Haneen, Raad Rasool, and Soham Moustafa. "Reinforcement Effect of Alumina and Silica on the Mechanical Properties of Mixture Polyesters (Unsaturated Polyester / Polyurethane)." Rafidain Journal of Science 29, no. 2 (2020): 51–63. http://dx.doi.org/10.33899/rjs.2020.165365.

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18

Shimizu, Toshiyuki, Shinya Higashiura, and Masakatsu Ohguchi. "Preparation of an acrylics-grafted polyester and its aqueous dispersion?mechanical properties of acrylics-grafted polyesters." Journal of Applied Polymer Science 75, no. 9 (2000): 1149–57. http://dx.doi.org/10.1002/(sici)1097-4628(20000228)75:9<1149::aid-app8>3.0.co;2-m.

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19

Marinkovic, Aleksandar, Tijana Radoman, Enis Dzunuzovic, et al. "Mechanical properties of composites based on unsaturated polyester resins obtained by chemical recycling of poly(ethylene terephthalate)." Chemical Industry 67, no. 6 (2013): 913–22. http://dx.doi.org/10.2298/hemind130930077m.

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Composites based on unsaturated polyester (UPe) resins and fumed silica AEROSIL? RY 50, NY 50, RX 50 and NAX 50, as well as graphite, TiO2 or organically modified clay CLOISITE 30B were prepared in order to investigate the influence of reinforcing agents on the mechanical properties of composites. Unsaturated polyester resins were synthesized from maleic anhydride and products of glycolysis, obtained by depolymerization of poly(ethylene terephthalate) with dipropylene glycol (UPe1 resin) and triethylene glycol (UPe2 resin) in the presence of tetrabutyl titanate catalyst. The obtained unsaturat

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20

Kausar, Ayesha. "Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers." Journal of Plastic Film & Sheeting 35, no. 1 (2018): 22–44. http://dx.doi.org/10.1177/8756087918783827.

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Polyester is a versatile commercially significant polymer (thermoplastic/thermoset) well-known for its biodegradability and excellent thermal, mechanical, and chemical properties. Synthetic aromatic polyester resins usually have better moisture resistance, nonflammability, liquid crystal, strength, thermal, and environmental features compared with natural/aliphatic polyesters. Nanofillers can reinforce these important polymers to further enhance the final nanocomposite structural and physical characteristics. This review presents research devoted to polyester nanocomposites with essential nano

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21

Yamamoto, Atsushi, Koji Nemoto, Masaru Yoshida, et al. "Improving thermal and mechanical properties of biomass-based polymers using structurally ordered polyesters from ricinoleic acid and 4-hydroxycinnamic acids." RSC Advances 10, no. 60 (2020): 36562–70. http://dx.doi.org/10.1039/d0ra05671e.

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22

Guan, Xing-Hua, He-Ran Nie, Hong-Hua Wang, et al. "High-solubility aromatic polyesters with fluorene and phthalein groups: Synthesis and property." High Performance Polymers 32, no. 8 (2020): 933–44. http://dx.doi.org/10.1177/0954008320912314.

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A series of aromatic polyesters bearing fluorene and phthalein groups were synthesized from commercially available 9,9-bis(4-hydroxyphenyl)fluorene (BPF), phenolphthalein, and terephthaloyl chloride through an interfacial polymerization method. The microstructure, molecular weight, morphology, thermal properties, and thermal decomposition mechanism of these aromatic polyesters were investigated. Their mechanical properties were also evaluated. The results suggested that the copolymer compositions were approximately equal to the feed compositions. Moreover, the increase in the BPF unit content

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23

Wu, Shuyi, Yang Zhang, Jiarui Han, Zhining Xie, Jun Xu, and Baohua Guo. "Copolymerization with Polyether Segments Improves the Mechanical Properties of Biodegradable Polyesters." ACS Omega 2, no. 6 (2017): 2639–48. http://dx.doi.org/10.1021/acsomega.7b00517.

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24

Ryner, Maria, and Ann-Christine Albertsson. "Tailored mechanical properties and degradability of polyesters by controlled molecular architecture." Macromolecular Symposia 175, no. 1 (2001): 11–18. http://dx.doi.org/10.1002/1521-3900(200110)175:1<11::aid-masy11>3.0.co;2-f.

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25

Cao, Qi, Yuanli Cai, Bo Jing, and Pengsheng Liu. "Structure and mechanical properties of thermoplastic polyurethane, based on hyperbranched polyesters." Journal of Applied Polymer Science 102, no. 6 (2006): 5266–73. http://dx.doi.org/10.1002/app.24779.

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26

Odelius, Karin, Madelen Ohlson, Anders Höglund, and Ann‐Christine Albertsson. "Polyesters with small structural variations improve the mechanical properties of polylactide." Journal of Applied Polymer Science 127, no. 1 (2012): 27–33. http://dx.doi.org/10.1002/app.36842.

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27

Biresaw, G., and C. J. Carriere. "Compatibility and mechanical properties of blends of polystyrene with biodegradable polyesters." Composites Part A: Applied Science and Manufacturing 35, no. 3 (2004): 313–20. http://dx.doi.org/10.1016/j.compositesa.2003.09.020.

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28

Latos-Brozio, Malgorzata, and Anna Masek. "The Application of (+)-Catechin and Polydatin as Functional Additives for Biodegradable Polyesters." International Journal of Molecular Sciences 21, no. 2 (2020): 414. http://dx.doi.org/10.3390/ijms21020414.

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Plant polyphenols are a huge group of compounds with a wide spectrum of applications. Substances from this group have been used in polymer materials such as stabilizers, dyes, indicators, fungicides, and bactericides, especially in new generation packaging materials. The aim of this study is to obtain environmentally friendly materials based on the biodegradable aliphatic polyesters, polylactide (PLA) and polyhydroxyalkanoate (PHA), with plant functional additives, (+)-catechin and polydatin. These natural polyphenols (polydatin and (+)-catechin) have not been used so far in polymer materials

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29

Zhang, Yingying, and Mingyue Zhang. "Aging Properties of Polyvinylidenefluoride-Coated Polyesters Used in Tensioned Membrane Structure: Effect of Loading Protocol and Environment." Advances in Materials Science and Engineering 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/8789247.

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This paper presents the degradation behaviors of polyvinylidenefluoride- (PVDF-) coated polyesters used in tensioned membrane structure by artificial accelerated tests, in which the effects of environment factors and loading conditions are studied. Results show that the degradation ratio of main mechanical parameters (tensile strength, tear strength, and elastic modulus) is related to the aging depth of substrate and coating. The degradation of weather resistance can be considered as the accumulation of environment and loads. The ultraviolet radiation and the temperature mainly affect the mech

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30

Hu, Keling, Dongping Zhao, Guolin Wu, and Jianbiao Ma. "Polyesters derived from bio-based eugenol and 10-undecenoic acid: synthesis, characterization, and structure–property relationships." RSC Advances 5, no. 105 (2015): 85996–6005. http://dx.doi.org/10.1039/c5ra17457k.

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31

Tian, Jin, Ting Xu, Yefa Tan, Zhongwei Zhang, Binghui Tang, and Zhidan Sun. "Effects of Non-Covalent Functionalized Graphene Oxide with Hyperbranched Polyesters on Mechanical Properties and Mechanism of Epoxy Composites." Materials 12, no. 19 (2019): 3103. http://dx.doi.org/10.3390/ma12193103.

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In order to improve the interfacial properties of graphene oxide (GO) and epoxy resin (EP), hyperbranched polyesters with terminal carboxyl (HBP) non-covalently functionalized graphene oxide (HBP-GO) was achieved by strong π-π coupling between hyperbranched polyesters and GO nanosheets. The effects of non-covalent functionalization of GO on the dispersibility, wettability and interfacial properties were analyzed. The mechanical properties and enhancement mechanism of HBP-GO/EP composites were investigated. The results show that the hyperbranched polyesters is embedded in the GO layer due to it

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32

Bednarz, Paulina. "Hydrogen peroxide/UV treatment on polylactide/polyurethane blends for biomedical applications." Science, Technology and Innovation 1, no. 1 (2017): 44–48. http://dx.doi.org/10.5604/01.3001.0010.7552.

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Biodegradable polymers should be non-toxic, possess low immunogenicity and good mechanical properties. Due to their hydrophobicity and their low surface energy cells only poorly attach, spread and proliferate on these biodegradable polyesters. Therefore, the surface of these polyesters should usually be modified and already several approaches have been presented to increase their cell affinity. In this research the influence of hydrogen peroxide combined with ultra violet irradiation on wettability, morphology and mechanical properties of PU/PLA blends as well as their pure components. It was

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Thi, Tran Hang, Michiya Matsusaki, and Mitsuru Akashi. "Development of Photoreactive Degradable Branched Polyesters with High Thermal and Mechanical Properties." Biomacromolecules 10, no. 4 (2009): 766–72. http://dx.doi.org/10.1021/bm801203g.

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34

Cao, Qi, and Pengsheng Liu. "Structure and Mechanical Properties of Shape Memory Polyurethane Based on Hyperbranched Polyesters." Polymer Bulletin 57, no. 6 (2006): 889–99. http://dx.doi.org/10.1007/s00289-006-0650-z.

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35

Abdel-Azim, Abdel-Azim A. "Mechanical properties and curing characteristics of unsaturated polyesters synthesized for large casting." Polymer Bulletin 35, no. 1-2 (1995): 229–36. http://dx.doi.org/10.1007/bf00312919.

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36

Swisher, Jordan H., Jamie A. Nowalk, and Tara Y. Meyer. "Property impact of common linker segments in sequence-controlled polyesters." Polymer Chemistry 10, no. 2 (2019): 244–52. http://dx.doi.org/10.1039/c8py01443d.

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37

Shakhmurzova, Kamila T., Svetlana Yu Khashirova, Mukhamed Kh Ligidov, et al. "SYNTHESIS AND PROPERTIES OF AROMATIC POLYESTERS WHITH CARDED FRAGMENTS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 6 (2017): 28. http://dx.doi.org/10.6060/tcct.2017606.5557.

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Polyethers are of great interest for various industries due to a complex of valuable properties, such as heat resistance, fire resistance, high strength, etc. Carded polymers occupy a special place among polymers with increased heat resistance, containing in the main polymer chain at least one element that is part of the lateral cyclic grouping. The presence of such fragments increases the glass transition temperature and heat resistance, which allows the copolymers to be operated at higher temperatures without changing the physico-mechanical parameters. For crystalline polymers, the presence

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38

Chen, Guo Qiang, Qiong Wu, Ya Wu Wang, and Zhong Zheng. "Application of Microbial Polyesters-Polyhydroxyalkanoates as Tissue Engineering Materials." Key Engineering Materials 288-289 (June 2005): 437–40. http://dx.doi.org/10.4028/www.scientific.net/kem.288-289.437.

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Poly(hydroxybutyrate-co-hydroxyhexanoate) (PHBHHx) has improved mechanical properties over the existing PHA and our results have shown that PHBHHx has better biocompatibility over polyhydroxybutyrate (PHB) and polylactic acid (PLA). Surface treatment with lipases dramatically changed the material surface properties and increased the biocompatibility of the PHBHHx. PHBHHx and its PHB blends had been used to make three dimensional structures and it has been found that cartilage, osteoblast, and fibroblasts all showed strong growth on the PHBHHx scaffolds. The growth was much better compared with

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Plyusnin, Artem, Jingwei He, Cindy Elschner, et al. "A Polymer for Application as a Matrix Phase in a Concept of In Situ Curable Bioresorbable Bioactive Load-Bearing Continuous Fiber Reinforced Composite Fracture Fixation Plates." Molecules 26, no. 5 (2021): 1256. http://dx.doi.org/10.3390/molecules26051256.

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The use of bioresorbable fracture fixation plates made of aliphatic polyesters have good potential due to good biocompatibility, reduced risk of stress-shielding, and eliminated need for plate removal. However, polyesters are ductile, and their handling properties are limited. We suggested an alternative, PLAMA (PolyLActide functionalized with diMethAcrylate), for the use as the matrix phase for the novel concept of the in situ curable bioresorbable load-bearing composite plate to reduce the limitations of conventional polyesters. The purpose was to obtain a preliminary understanding of the ch

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Hess, Michael, and Jürgen Pionteck. "Thermodynamic properties of a series of semi-rigid polyesters." Materials Research Innovations 6, no. 2 (2002): 51–54. http://dx.doi.org/10.1080/14328917.2002.11784712.

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Zhang, Chuan Ji, Zhi Xiong Huang, Min Xian Shi, and Ming Zhang. "Two New Thermotropic Liquid Crystalline Polyesters and their Composites: Synthesis and Characterization." Advanced Materials Research 87-88 (December 2009): 154–59. http://dx.doi.org/10.4028/www.scientific.net/amr.87-88.154.

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Two new series of liquid crystalline polyesters were synthesized using melt polycondensation reaction.Glass fiber,as a reinforcement,was meltpolymerized with 4-acetoxybenzoic(ABA),4,4＇-diacetoxybiphenyl, isophthalic acid(IA) and terephthalic acid(TA) to make TLCP/GF composites with a good mechanical properties.All the obtained compounds were characterized by conventional spectroscopic methods. The structure of the target compounds and intermediates was conformed by the IR, 1H NMR and SEM. The thermal behavior of the polymers has been characterized using polarized optical microscopy and differe

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Ishiaku, U. S., X. Y. Yang, Y. W. Leong, H. Hamada, T. Semba, and K. Kitagawa. "Effects of Fiber Content and Alkali Treatment on the Mechanical and Morphological Properties of Poly(lactic acid)/Poly(caprolactone) Blend Jute Fiber-Filled Biodegradable Composites." Journal of Biobased Materials and Bioenergy 1, no. 1 (2007): 78–86. http://dx.doi.org/10.1166/jbmb.2007.1981.

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An attempt was made at increasing both toughness and rigidity by simultaneous toughening and reinforcement. Natural fiber-reinforced biodegradable polyester blend composites were prepared from modified and unmodified biodegradable polyesters blends with surface-treated and untreated jute fibers by melt mixing and subsequent molding. The resulting cross-linked and uncross-linked poly(lactic acid) (PLA)/poly(caprolactone) (PCL)blends were used as the biodegradable polyester matrixes. Alkali treatment was performed as the surface treatments on the jute fiber. This study revealed that alkali treat

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Feng, Qing Ling. "Materials Selection and Scaffold Construction for Liver Tissue Engineering." Materials Science Forum 475-479 (January 2005): 2391–94. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.2391.

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To design the scaffold with suitable properties for the development of tissue engineered livers, materials design, selection and scaffold construct are three dispensable steps to be followed consequently. Firstly, some natural materials such as collagen, chitosan and alignate as well as some prevailing aliphatic polyester such as poly(lactic acid) (PLA), polyglycolide (PGA) and their copolymers poly(lactide-co-glycolide) (PLGA) are selected and characterized by hepatocyte culture. The experimental results reveal that the natural materials with excellent biocompatibility are not suitable as the

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Vieira, A. C., J. C. Vieira, R. M. Guedes, and A. T. Marques. "Degradation and Viscoelastic Properties of PLA-PCL, PGA-PCL, PDO and PGA Fibres." Materials Science Forum 636-637 (January 2010): 825–32. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.825.

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Aliphatic polyesters, such as polylactic acid (PLA), polyglycolic acid (PGA), polycaprolactone (PCL), polydioxone (PDO) and others, have been commonly used in biodegradable products. Hydrolytic and/or enzymatic chain cleavage of these materials leads to α-hydroxyacids, which, in most cases, are ultimately assimilated in human body or in a composting environment. However, each of these has some shortcomings, in terms of mechanical properties and degradation time, which restrict its applications. The combination of these materials, by copolymerization or blending, enables a range of mechanical p

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Pandit, Sandeepak B., and Vikas M. Nadkarni. "Toughening of Unsaturated Polyesters by Reactive Liquid Polymers. 2. Processibility and Mechanical Properties." Industrial & Engineering Chemistry Research 33, no. 11 (1994): 2778–88. http://dx.doi.org/10.1021/ie00035a030.

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Zamboulis, Alexandra, Eirini A. Nakiou, Evi Christodoulou, et al. "Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications." International Journal of Molecular Sciences 20, no. 24 (2019): 6210. http://dx.doi.org/10.3390/ijms20246210.

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In a century when environmental pollution is a major issue, polymers issued from bio-based monomers have gained important interest, as they are expected to be environment-friendly, and biocompatible, with non-toxic degradation products. In parallel, hyperbranched polymers have emerged as an easily accessible alternative to dendrimers with numerous potential applications. Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical ap

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Martinez, Araceli, Mikhail A. Tlenkopatchev та Selena Gutierrez. "The Unsaturated Polyester Via Ring-Opening Metathesis Polymerization (ROMP) of ω-6-Hexadecenlactone". Current Organic Synthesis 15, № 4 (2018): 566–71. http://dx.doi.org/10.2174/1570179414666171011155831.

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Background: Ring opening metathesis polymerization of lactones using alkylidene catalysts is an alternative to obtain unsaturated linear polyesters with remarkable thermal and mechanical properties. Also, these polyesters have properties of biodegradability which opens up a wide range of applications as environmentally friendly thermoplastics and biomaterials. Objective: This research aims to present one route to obtain an unsaturated linear polyester poly(ω-6- hexadecenlactone) via ring opening-metathesis polymerization of ω-6-hexadecenlactone using the rutheniumalkylidene [Ru(Cl)2(=CHPh)(PCy

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Houston, Katelyn R., Anne-Martine S. Jackson, Ross W. Yost, Howard S. Carman, and Valerie Sheares Ashby. "Supramolecular engineering polyesters: endgroup functionalization of glycol modified PET with ureidopyrimidinone." Polymer Chemistry 7, no. 44 (2016): 6744–51. http://dx.doi.org/10.1039/c6py01421f.

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Montava-Jorda, Sergi, Diego Lascano, Luis Quiles-Carrillo, et al. "Mechanical Recycling of Partially Bio-Based and Recycled Polyethylene Terephthalate Blends by Reactive Extrusion with Poly(styrene-co-glycidyl methacrylate)." Polymers 12, no. 1 (2020): 174. http://dx.doi.org/10.3390/polym12010174.

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In the present study, partially bio-based polyethylene terephthalate (bio-PET) was melt-mixed at 15–45 wt% with recycled polyethylene terephthalate (r-PET) obtained from remnants of the injection blowing process of contaminant-free food-use bottles. The resultant compounded materials were thereafter shaped into pieces by injection molding for characterization. Poly(styrene-co-glycidyl methacrylate) (PS-co-GMA) was added at 1–5 parts per hundred resin (phr) of polyester blend during the extrusion process to counteract the ductility and toughness reduction that occurred in the bio-PET pieces aft

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Veranitisagul, Chatchai, Worawat Wattanathana, Suttipong Wannapaiboon, et al. "Antimicrobial, Conductive, and Mechanical Properties of AgCB/PBS Composite System." Journal of Chemistry 2019 (April 28, 2019): 1–14. http://dx.doi.org/10.1155/2019/3487529.

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Demand for environmentally friendly plastic materials which are obtained from renewable resources such as biomass-based polyesters is of concern. Herein, the enhanced characteristic performances of poly(butylene succinate) (PBS) by employing the fabrication of PBS-based composites with the nanosilver-coated carbon black (AgCB) using an injection-molding method are reported. The preformed AgCB additives are priorly prepared by the benzoxazine oxidation method. Phase characterization of the obtained composite materials examined by X-ray diffraction (XRD) reveals the crystalline PBS matrix and th

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