期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 55, 期 14, 页码 2408-2418出版社
WILEY
DOI: 10.1002/pola.28630
关键词
amorphous polyester; biopolymers; chiral; ditacticity; isotactic; poly((R,S)-3-allyl-3-methylmalic acid) (PAlMMLA); semicrystallinity; stereoregularity; stereospecific polymers
A number of works have been focused on the study of polymers microtacticity and the probability of iso-, syndio-, and atactic arrangement of monomers such as polypropylene and poly(methacrylic esters) before the 1980s. This type of study was fewer in the last four decades despite the importance of stereochemical knowledge of macromolecules in the biomedical field. NMR analysis was the invaluable tool for the study of stereochemistry. This work detailed the synthesis and the physicochemical and microtacticity characterizations of new semicrystalline and amorphous polyesters, poly(3-allyl-3-methylmalic acid) (PAlMMLA) derivatives which are part of the poly(malic acid) family. This polymer is biodegradable and biocompatible. It can also be chemically modified for a possible combination with bioactive molecules. It can be synthesized from chiral product leading a stereoregular and semicrystalline structure. In the case of a racemic starting product, the obtained macromolecular structure is amorphous. Semi-crystalline polyester presented a highly diisotactic structure. (C) 2017 Wiley Periodicals, Inc.
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