NDLI: Synthesis and characterization of copolyesters based on tartaric acid derivatives

Content Provider	Springer Nature Link
Author	Dhamaniya, Sunil Jacob, Josemon
Copyright Year	2011
Abstract	A series of aliphatic copolyesters based on naturally occurring l-tartaric acid amenable to facile post-polymer modification have been synthesized and characterized. The hydroxyl groups of the tartaric acid were protected and copolyesters were synthesized by taking different feed molar ratio of dimethyl 2,3-O-isopropylidene tartarate and dimethyl succinate with 1,6-hexanediol. Then, a series of copolyesters were synthesized by taking equal feed molar ratio of dimethyl 2,3-O-isopropylidene tartrate and dimethyl succinate or dimethyl adipate with different alkane diols. The acetal protecting groups were then selectively hydrolyzed to prepare a new series of copolyesters with pendant hydroxyl groups along the copolymer chain. The number average molecular weights (M n) of the copolymers were found to vary in the range of 3.7–8.4 × 103 g mol−1. The hydroxy copolyesters show higher glass transition (T g) and melting (T m) temperatures as compared to isopropylidene copolyesters and the T g varies from −8.0 to −48.2 °C depending on the feed ratio of the comonomers. The hydrolytic degradation studies of copolyesters revealed that hydroxyl copolyesters degrade faster than isopropylidene copolyesters.
Starting Page	1287
Ending Page	1304
Page Count	18
File Format	PDF
ISSN	01700839
Journal	Polymer Bulletin
Volume Number	68
Issue Number	5
e-ISSN	14362449
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-08-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aliphatic copolyesters Hydroxyl-functionalized copolyesters Step polymerization l-Tartaric acid Physical Chemistry Soft and Granular Matter, Complex Fluids and Microfluidics Polymer Sciences Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Condensed Matter Physics Polymers and Plastics

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