P. A. Mikhaylov, Ya. V. Golubev, V. G. Kulichikhin
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引用次数: 0
Abstract
Along with 4-acetoxybenzoic acid (4-ABA) and O-acetylvanillic acid (AVA), the syringic acid derivative O-acetylsyringic acid (ASA) can be used as an AB-type comonomer in polycondensation reactions. All three monomers have comparable polycondensation rates, and therefore the copolycondensation of 4-ABA, ASA, and AVA in the melt is expected to yield copolyesters with a random or nearly random macromolecular structure. From a mixture of ASA, 4-ABA, and 4′-acetoxybiphenyl-4-carboxylic acid (4-ABCA), a ternary thermotropic copolyester with a “liquid crystal glass” structure was synthesized. This copolyester has a lower softening temperature and a higher glass transition temperature compared to similar ternary copolyesters based on 4-ABA and 4-ABCA.
期刊介绍：
Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections:
General and Inorganic Chemistry;
Physical Chemistry;
Organic Chemistry;
Organometallic Chemistry;
Chemistry of Natural Compounds and Bioorganic Chemistry.
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