Polymeric triglyceride analogs prepared by enzyme-catalyzed condensation polymerization

Zhang, Yurong; Spinella, Stephen; Xie, Wenchun; Cai, Jiali; Yang, Yixin; Wang, Yu‐Zhong; Gross, Richard A.

doi:10.1016/j.eurpolymj.2012.11.011

Cited by 45 publications

(41 citation statements)

References 37 publications

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“…They are usually produced by polycondensation of diacids and diols based on petroleum stocks, using titanium or tin alkoxides as catalyst [11]. The synthesis temperature is usually above 150 °C [11,12].…”

Section: Introductionmentioning

confidence: 99%

Enzyme-Catalyzed Synthesis of Unsaturated Aliphatic Polyesters Based on Green Monomers from Renewable Resources

et al. 2013

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Bio-based commercially available succinate, itaconate and 1,4-butanediol are enzymatically co-polymerized in solution via a two-stage method, using Candida antarctica Lipase B (CALB, in immobilized form as Novozyme® 435) as the biocatalyst. The chemical structures of the obtained products, poly(butylene succinate) (PBS) and poly(butylene succinate-co-itaconate) (PBSI), are confirmed by 1H- and 13C-NMR. The effects of the reaction conditions on the CALB-catalyzed synthesis of PBSI are fully investigated, and the optimal polymerization conditions are obtained. With the established method, PBSI with tunable compositions and satisfying reaction yields is produced. The 1H-NMR results confirm that carbon-carbon double bonds are well preserved in PBSI. The differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) results indicate that the amount of itaconate in the co-polyesters has no obvious effects on the glass-transition temperature and the thermal stability of PBS and PBSI, but has significant effects on the melting temperature.

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Section: Introductionmentioning

confidence: 99%

Enzyme-Catalyzed Synthesis of Unsaturated Aliphatic Polyesters Based on Green Monomers from Renewable Resources

et al. 2013

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“…Unsaturated polyesters are among the most common polymers used in conjunction with glass fiber reinforcing [4,5] and widely used as thermosetting resins in various industrial areas [6][7][8]. They are prepared by polycondensation of diacids and diols using titanium or tin alkoxides as catalysis [9].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of New Unsaturated Terpolyesters Based on Diarylidenecyclohexanone

Abdelaty¹

2017

Polym Sci

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In the present study new unsaturated terpolyesters based on diarylidenecyclohexanone, were synthesized by the interfacial polycondensation polymerization technique. Aldol condensation reaction in acid media was used for preparation of three kinds of monomers and investigated by FT IR and 1 H NMR as discussed in our resent work. The terpolymers were synthetized by the polymerization of 2,6-bis (4-hydrxybenzylidene) cyclohexanone I, 2,6-bis (3-hydroxybezylidene) cyclohexanone II, and 2,6-bis (4-hydroxy-3-methoxybenzylidene) cyclohexanone III with isophthaloyl, terphthaloyl, adipoyl, sebacoyl and azobenzene 4,4-dicaroxyldichloride. The resulting terpolyesters were characterized by FT-IR, 1 HNMR. The molecular weight was determined by the intrinsic viscosity measurements. The thermal stabilities of the prepared Terpolyester were evaluated thermogravimeteric analysis (TGA). Differential thermal analysis (DTA) was used for determination of glass temperatures. X-ray analysis shows the degree of crystallinity. The morphological properties of some selected polymers were detected by SEM.

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“…They are available in large quantities at low price, while their chemical modification might lead to a large variety of monomers [19] and polymers [20,21]. Although in many cases plant oils do not require extensive modification before their application, a wide range of techniques are available for the synthesis of valuable, bio-based derivatives.…”

Section: Figmentioning

confidence: 99%

Recent advances in bio-based polymers and composites

Imre

Pukánszky

2013

European Polymer Journal

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Polymeric triglyceride analogs prepared by enzyme-catalyzed condensation polymerization

Cited by 45 publications

References 37 publications

Enzyme-Catalyzed Synthesis of Unsaturated Aliphatic Polyesters Based on Green Monomers from Renewable Resources

Enzyme-Catalyzed Synthesis of Unsaturated Aliphatic Polyesters Based on Green Monomers from Renewable Resources

Fabrication and Characterization of New Unsaturated Terpolyesters Based on Diarylidenecyclohexanone

Recent advances in bio-based polymers and composites

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