Bibliografias temáticas / Polyester polyol

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Literatura científica selecionada sobre o tema "Polyester polyol"

Autor: Grafiati

Publicado: 7 de junho de 2025

Última modificação: 2 de agosto de 2025

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Artigos de revistas sobre o assunto "Polyester polyol"

Abdollahi, Mohammad, and Behzad Khalili. "Advancements in polyurethane coating: Synthesis and characterization of a novel hyper branched polyester polyol." Current Chemistry Letters 13, no. 1 (2024): 117–26. http://dx.doi.org/10.5267/j.ccl.2023.8.004.

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Hyperbranched polyester polyols have emerged as a promising candidate for polyurethane coatings due to their unique structure and properties. In this context, this paper aims to synthesize a new hyperbranched polyester polyol and evaluate its potential as a polyol for polyurethane coating applications. In this study, the synthesis of hyperbranched polyester polyol involves the reaction between a multifunctional alcohol and a multifunctional carboxylic acid or anhydride. It is further modified by incorporating 2-hydroxyethyl methacrylate and styrene. The properties of the polyester polyol were

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Čuk, Nataša, Miha Steinbücher, Nejc Vidmar, Martin Ocepek, and Peter Venturini. "Fully Bio-Based and Solvent-Free Polyester Polyol for Two-Component Polyurethane Coatings." Coatings 13, no. 10 (2023): 1779. http://dx.doi.org/10.3390/coatings13101779.

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In recent years, many efforts are being devoted to the development of new materials that originate from renewable resources. Polyesters are one of the most important classes of such materials and several bio-based monomers are available for their synthesis. In this work, the development of fully bio-based and solvent-free polyester polyol used for two-component polyurethane coatings on industrial scale is presented. Fossil-based raw materials were substituted with bio-based alternatives that are commercially available on a large scale. Properties of polyols and coatings were determined and mea

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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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Zhang, Zhaoyang, Nannan Ni, and Yahong Xu. "Effects of Different Polyols with Functions on the Properties of Polyester Polyol-Based Polyurethane Coatings." Coatings 15, no. 1 (2025): 61. https://doi.org/10.3390/coatings15010061.

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Polyester-based polyurethane coatings were widely used in automotive, industrial, construction, and plastics industries due to their excellent mechanical properties, adhesion, and relatively outstanding oil and chemical resistance. In these coatings, the type and ratio of polyester and isocyanate curing agents influenced the cohesion energy, hydrogen bonding, crystallinity, crosslinking density, molecular weight, and morphology of the polyurethane at the microscopic level, thereby affecting the macroscopic mechanical properties, electrical performance, and environmental resistance of the mater

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Gomzyak, V. I., N. V. Bychkov, A. S. Aduev, V. A. Ivanova, A. D. Koshelev, and S. N. Chvalun. "Polymerization of D,L-lactide in the presence of Boltorn™ polyester polyol." Fine Chemical Technologies 17, no. 3 (2022): 242–52. http://dx.doi.org/10.32362/2410-6593-2022-17-3-242-252.

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Objects. To synthesize monodisperse biodegradable hyperbranched polymers based on D,L-lactide in the presence of Boltorn™ H30 polyester polyol as a macroinitiator.Methods. 1H and 13C nuclear magnetic resonance (NMR) spectroscopy was used to study the chemical structure of the Boltorn™ H30 polyester polyol and (Boltorn™ H30)-PDLA hyperbranched copolymers. The molecular weight distribution of the polymers was studied by gel permeation chromatography (GPC). In order to study the thermal stability of Boltorn™ H30 polyester polyol, thermogravimetric analysis (TGA) was used. Polymerization of D,L-la

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Geng, Xiao Yi, Zhi You Hu, Fei Yang, et al. "Preparation and Characterization of Aqueous Polyurethane Polyol Used in Waterbore Two-Component Polyurethane Coating." Applied Mechanics and Materials 470 (December 2013): 53–57. http://dx.doi.org/10.4028/www.scientific.net/amm.470.53.

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Aqueous polyurethane(PU) polyols were synthesized from polyester polyol, toluene diisocyanate(TDI), dimethylolbutyric acid (DMBA) and diethanolamine(DEA). The structure of PU polyol and resulting polyurethane film were confirmed by the Fourier Transform Infrared Spectroscopy (FT-IR). The effects of NCO/OH and DMBA content on the particle size of PU polyol and resulting polyurethane films, which formed by the mixture of PU polyol and water-dispersible polyisocyanate, was investigated by dynamic light scattering analysis, dynamic mechanical analysis and measurement of the mechanical properties.T

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Aryani, Adriana Sari, Yulian Syahputri, and Hermawan Hermawan. "VALUE CHAIN PALM OIL INDUSTRY ANALYSIS ON THE POLYOL POLYESTER PATHWAY." IJTI (International Journal of Transportation and Infrastructure) 2, no. 2 (2019): 105–16. http://dx.doi.org/10.29138/ijti.v2i2.964.

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Palm oil is one of important Indonesia's export commodities. In 2017, the export value of palm oil and its derivatives (excluding oleochemicals and biodiesel) penetrated US $ 22.97 billion. The bright prospect of the palm oil commodity in the world vegetable oil trade encouraged the Indonesian government to develop an integrated palm oil industry. On the other hand, some downstream petrochemical products have begun to experience difficulties in raw materials, including Polyurethane. Polyurethane is a polymeric material from polyols and isocyanates which are widely used as packaging. Polyol its

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Zhang, Cheng, Yixuan Zhang, Yao Liu, et al. "Effects of Polyol Types on Underwater Curing Properties of Polyurethane." Polymers 17, no. 1 (2024): 5. https://doi.org/10.3390/polym17010005.

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This study aims to develop castable polyurethane suitable for applications on wet substrates or underwater construction. Polyurethanes were synthesized using various polyols with similar hydroxyl values, including poly(tetrahydrofuran) polyol, polyester polyol, castor oil-modified polyol, soybean oil-modified polyol, and cashew nut shell oil-modified polyol. The corresponding polyurethane curing products were evaluated for their underwater curing characteristics by volume expansion ratios and adhesion strength on dry and wet substrates, combined with analyses of reaction exothermic behavior, w

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Iannace, Salvatore, Roberta Alfani, Luigi Nicolais, Grazia Baggi, and Maurizio Zangrossi. "Effects of Composition on Thermal, Mechanical Properties and Biodegradability of Starch Based Polyurethane Foams." Cellular Polymers 18, no. 1 (1999): 21–33. https://doi.org/10.1177/026248939901800102.

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Polyurethane foams (PU) were prepared combining natural polysaccharides with polyester polyols and an aliphatic diisocyanate. Two classes of PU foams were studied: the first one was prepared by using starch as one of the components of the polyol mixture, while the second class was prepared by adding starch as filler to a reactive mixture containing sucrose in the polyol composition. Influence of chemical composition on mechanical, thermal and morphological properties were investigated. Moreover, biodegradation tests were performed on selected foams.

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Niesiobędzka, Joanna, Ewa Głowińska, and Janusz Datta. "Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties." International Journal of Molecular Sciences 22, no. 22 (2021): 12207. http://dx.doi.org/10.3390/ijms222212207.

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This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers were different in the content of iso-cyanate groups content (ca. 6 and 8%). The process of pre-polymerization and the obtained bio-based prepolymers were analyzed

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Mais fontes

Teses / dissertações sobre o assunto "Polyester polyol"

Ziemer, Antje. "Hochverzweigte Polyesterole und deren Abmischungen für den Einsatz in Polyurethan-Schaumstoffen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2003. http://nbn-resolving.de/urn:nbn:de:swb:14-1055234737562-37907.

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Auf Grundlage der beiden Monomere (2,2-Bis(hydroxymethyl)propansäure (1) und 4,4-Bis(4-hydroxyphenyl)valeriansäure (2)) wurden hochverzweigte Polyester synthetisiert. Durch Verwendung von zwei-, drei-, vier- und sechsfunktionalen Kernmolekülen konnte die strukturelle Vielfalt der hochverzweigten Polyester erhöht werden. Abmischungen auf der Grundlage zweier Polyole (Polyether- bzw. Esterdiol) mit verschiedenen hochverzweigten Polyestern wurden hinsichtlich ihrer Mischbarkeit mittels DSC- und DMA-Messungen sowie rheologisch, mittels temperaturabhängiger IR-Spektroskopie, hinsichtlich ihrer Ober

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Vitkauskienė, Irena. "Chemical recycling of industrial poly(ethylene terephthalate) waste: synthesis of aromatic polyester polyols, their properties and use." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110920_152312-50729.

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In this study, the generation points, reasons and properties of industrial PET waste were examined in detail. Different chemical recycling ways were suggested for each kind of industrial PET waste. Under glycolysis of industrial PET waste by ethylene glycol, the yield of the main product bis(2-hidroxyethylene) terephthalate was higher than 85 %. Several series of aromatic polyester polyols (APP) were synthesized by transesterification of industrial PET waste using diethyleneglycol (DEG) in the presence of functional additives glycerol (GL) or/and adipic acid (ADA). The effect of functional add

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Hölting, Dorothee [Verfasser]. "Kohlenstoffdioxid sowie 2,3-Butylenoxid-Derivate als Polymerbausteine -Synthese und Charakterisierung von Polyolen und ungesättigten Polyestern als Komponenten für Polyurethane und UP-Harze- / Dorothee Hölting." München : Verlag Dr. Hut, 2013. http://d-nb.info/1036345580/34.

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El, jundi Ayman. "DEGRADABLE DOUBLE HYDROPHILIC BLOCK COPOLYMERS FOR HEALTH APPLICATIONS." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS141.

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Les copolymères amphiphiles dégradables à base de poly (éthylène glycol) PEG et de polyesters aliphatiques (poly(ε-caprolactone) (PCL), poly(lactide) (PLA), poly(glycolide) (PGA)) sont largement utilisés dans les applications médicales en raison de leur innocuité et leur acceptation par les autorités de santé. Cependant leur capacité à répondre aux enjeux auxquels sont confrontés les nanomédicaments (ciblage, réponse programmée etc…) est limitée du fait de l’absence de groupes fonctionnels. Pour pallier cette limitation, ce travail de thèse s’intéresse aux voies de modification post-polymérisa

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Tseng, Han-Thing, and 曾漢性. "Study on the polyester polyol modified novolac type phenolic resin." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/91740560764805452889.

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Li, Tsung-ming, and 李宗明. "A feasibility study of Anaerobic treatment on high Concentration Polyester polyol wastewater." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/00599472975138460028.

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碩士 國立中興大學 環境工程學系所 100 Thermoplastic polyurethane (TPU) is a polymer material composed of methylene bisphenyl isocyanate (MDI) and polyester polyol . With widely useful properties, TPU has been employed in sole materials, sporting goods and synthetic leathers. Polyester polyol is the major component of TPU, however, may generate wastewater containing water-insoluble high molecular weight, which would become a leading cause of environmental pollution if not properly handled. Biochemical methane potential test (BMP test) and anaerobic toxicity assay test (ATA test) were applied in thi

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Breitenbach, Armin [Verfasser]. "Comb polymers for biomedical application obtained by grafting biodegradable polyester chains onto hydrophilic polyol backbones / vorgelegt von Armin Breitenbach." 2003. http://d-nb.info/980846676/34.

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Lin, Chia-Ho, and 林家禾. "Study of Waterborne Polyurethane Synthesized by the Biomass Polyester Polyols." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/eyzr65.

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碩士 國立高雄應用科技大學 化學工程與材料工程系碩士在職專班 102 In recent years, waterborne polyurethane gradually replaces solvent-based polyurethane under the environmental issues. However, in raw material of synthetics, petroleum-based polyester or polyether polyols are still used as soft segments of the polyurethane. Due to the gradual depletion of fossil energy; undoubtedly, it is a great contribution of energy and environmental protection and also make biomass material resources recovery and energy regeneration if we use biomass polyester polyol to replace petroleum-based polyol. In this research, th

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Livros sobre o assunto "Polyester polyol"

Doi, Y. Microbial polyesters. VCH, 1990.

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Volova, Tatiana G. Polyhydroxyalkanoates--Plastic Materials of the 21st Century: Production, Properties, and Application. Nova Science Publishers, 2004.

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Capítulos de livros sobre o assunto "Polyester polyol"

Patel, Mogon, Laura Pilon, Peter Beavis, et al. "Shelf Life Assessment of Poly(ethylene-co-vinyl acetate) and Polyester Polyol Resins Used as Adhesives." In Service Life Prediction of Exterior Plastics. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06034-7_10.

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Kulshrestha, Ankur S., Ajay Kumar, Wei Gao, and Richard A. Gross. "Versatile Route to Polyol Polyesters by Lipase Catalysis." In ACS Symposium Series. American Chemical Society, 2005. http://dx.doi.org/10.1021/bk-2005-0900.ch023.

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Ionescu, Mihail, Ye Ji, William M. Shirley, and Zoran S. Petrović. "Polyurethanes from Hybrid Vegetable Oil/Petrochemical Polyester Polyols." In ACS Symposium Series. American Chemical Society, 2011. http://dx.doi.org/10.1021/bk-2011-1063.ch005.

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Murphy, J. J., M. Patel, A. R. Skinner, and P. F. Smith. "Modelling Radiation Damage in Polyurethane Materials Based Upon Polyester Polyols and Methylenediphenyldiisocyanate Formulations." In Ageing Studies and Lifetime Extension of Materials. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1215-8_36.

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Weichold, Oliver. "Ionic Conductive Polyesters—Assessing the Risk of Corrosion in Steel-Reinforced Concrete." In Springer Proceedings in Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72955-3_34.

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AbstractSensors based on ion-conducting polymers are a reliable alternative to conventional metallic sensors. Formulated as 2K resin, they are quick and easy to install and cost-effective, so that larger sensor arrays with improved accuracy are affordable. The present systems are based on poly(ethylene oxide) or poly(propylene oxide) containing unsaturated polyesters doped with lithium perchlorate and are cross-linked on site with styrene. The curing reaction proceeds even at 0 ℃ and tolerates the presence of water. The best system in this series exhibits a resistivity of 194 Ω·m, which is sev

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Penczek, Piotr, Ryszard Ostrysz, Dorota Wieczorek, Zbigniew Boncza-Tomaszewski, and S. V. Udeshi. "Flexible Polyurethanes Using a Castor Oil Based Polyester Polyol." In Polyurethanes Expo 2001. CRC Press, 2020. http://dx.doi.org/10.1201/9780429332609-82.

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Hirose, S., H. Hatakeyama, and K. Kobashigawa. "Preparation and physical properties of biodegradable polyurethanes derived from the lignin-polyester-polyol system." In The Chemistry and Processing of Wood and Plant Fibrous Material. Elsevier, 1996. http://dx.doi.org/10.1533/9781845698690.277.

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"Synthesis of 2K Polyurethane Coating Containing Combination of Nano Bentonite Clay, Nano CaCO3, and Polyester Polyol and Its Performance Evaluation on ABS Substrate." In Chemical and Bioprocess Engineering. Apple Academic Press, 2015. http://dx.doi.org/10.1201/b18402-39.

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"8. Polyester polyols for elastic polyurethanes." In [Set Polyols for Polyurethanes, Volume 1+2]. De Gruyter, 2019. http://dx.doi.org/10.1515/9783110644104-008.

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"5. Polyester Polyols For Rigid Polyurethane Foams." In [Set Polyols for Polyurethanes, Volume 1+2]. De Gruyter, 2019. http://dx.doi.org/10.1515/9783110644128-005.

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Trabalhos de conferências sobre o assunto "Polyester polyol"

Nava, Hildeberto, and Nelson Douglass. "High Strength One Component Hybrid Urethane Resin System for Infrastructure Applications." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05511.

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Abstract In recent years Urethane Hybrid systems have become very important in the growth of the thermosetting plastics industry. Their practical economical and technical advantages have made it easier for their implementation in conventional molding practices. Their adaptability to common formulations where unsaturated polyester or urethanes are used, provide simple systems that can be processed with fast reaction times and high filler loadings. The resultant products can be designed to have excellent toughness and elongation compared to common unsaturated polyesters. Typically, Polyurethane

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Fernando, Luis G. "Application Study on the Performance of Polyurethane Paint as a Green Coat Using Biobased Coconut Polyol Resin for Protective, Marine and Industrial Coatings." In SSPC 2011. SSPC, 2011. https://doi.org/10.5006/s2011-00019.

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Abstract This paper describes the performance properties of coconut-based polyol resin used in polyurethane coating systems compared with commercially available polyurethane paints which use petroleum-based acrylic or polyester polyol resins, in terms of physical and corrosion properties under accelerated laboratory weather conditions. The studies also show the chemical resistance and protection properties from the discoloration effects of ultraviolet (UV) light on the painted metal test panel substrate specifically cold rolled steel. The developed polyurethane coatings were applied as a prime

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Wolek, Sarah, Michael E. O'Brien, and Jeff Janos. "Polyols for Improved Durability of Pipeline Coatings." In Coatings+ 2020. SSPC, 2020. https://doi.org/10.5006/s2020-00076.

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Abstract The durability of a coating can be described in a simplified manner as how well it adheres to the substrate and how well it performs over time once exposed to the environment. Oil and gas pipeline coatings need to withstand exposure to both mechanical and chemical forces for long periods of time to extend the life of the pipeline. A new class of 100% solids polyester polyols have been developed which can offer improved performance in urethane coating applications compared to other common protective systems such as epoxies, aspartics and solventborne polyesters. Coatings made with the

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de Vries, Johannes, Bernhard Stadler, Sandra Hinze, and Sergey Tin. "Renewable Polyether Polyols via the Hydrogenation of Polyesters." In 1st International Electronic Conference on Catalysis Sciences. MDPI, 2020. http://dx.doi.org/10.3390/eccs2020-07575.

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Ionescu, Lara C., Brendon M. Baker, Jason A. Burdick, and Robert L. Mauck. "A Composite Microsphere/Nanofiber Controlled Release System for Fibrous Tissue Engineering." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-205474.

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Fibrous tissues are characterized by a dense, ordered collagenous structure that defines their unique and anisotropic mechanical properties. These properties are critical for tissue function, and are compromised in instances of injury and tissue degeneration. To improve repair, engineering methods based on electrospinning have produced aligned and anisotropic scaffolds composed of biodegradable nanofibers that can serve as templates for new tissue formation [1]. For example, the slow degrading polyester, poly(ε-caprolactone) (PCL) can be formed into aligned arrays that direct cell alignment an

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Almonti, D. "Mechanical properties and dynamic response of 3D printed parts in PLA/P(3HB)(4HB) blends." In Italian Manufacturing Association Conference. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902714-25.

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Abstract. Oil-based plastics can meet several technical requirements in different industrial applications at a reasonable cost, but they can cause high environmental impact. Bioderived polyesters like PLA and PHAs, are, instead, eco-friendly alternatives to reduce the environmental burden caused by conventional plastics. In this respect, dynamic response and mechanical properties of 3D printed parts made in (PLA)/Poly-3-hydroxybuutyrate-4-hydroxybutyrate(P(3HB)(4HB)) were investigated. The blends were achieved by extrusion compounding of different amount of P(3HB)(4HB) (0%, 10%, 20% and 30%) i

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Mago, Gaurav, Frank T. Fisher, and Dilhan M. Kalyon. "Effect of Shearing on the Crystallization Behavior of Poly (Butylene Terephthalate) and PBT Nanocomposites." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14585.

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Poly (butylene terephthalate) (PBT) is an engineering thermoplastic polyester with excellent mechanical properties and a fast crystallization rate widely processed via extrusion and injection molding. Such processes require very complex deformation histories, which can influence the ultimate properties of the processed material and parts. For such systems, flow-induced structural changes in the material as a function of processing are of increasing interest in the field of polymer processing. Linear viscoelastic material functions, including the storage and loss moduli and magnitude of complex

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