Poly(ester amide)s from poly(alkylene succinate)s and rapid crystallizing amido diols: Synthesis, thermal properties and crystallization behavior
authors Kluge, M; Rennhofer, H; Lichtenegger, HC; Liebner, FW; Robert, T
nationality International
journal EUROPEAN POLYMER JOURNAL
author keywords Poly(ester amide); Succinic acid; Thermal properties; Microstructure; Amido diol; Bio-based polymer
keywords POLY(BUTYLENE SUCCINATE); ALIPHATIC POLY(ESTER-AMIDE)S; COPOLYESTERS; DEGRADATION; COPOLYMERS; PBS; POLYESTERS; KINETICS; BLOCKS; ACID
abstract Random poly(ester amide)s are synthesized from succinic acid, ethylene glycol or 1,4-butanediol and different aliphatic amido diols - symmetric alpha,omega-diols containing two amide moieties. The formation of chain-terminating N-succinimide end groups, which limit the molecular weight attainable by common synthetic strategies, is effectively suppressed. Poly(ester amide)s crystallize in a suprastructure similar to that of even-even polyamides. The thermal properties of both types of poly(ester amide)s synthesized are considerably improved and transition temperatures are tunable by changing the ratio of aliphatic diol to rapidly crystallizing amido diol in the feed. Using ethylene glycol as diol component, T-g and T-m of the material could be enhanced from -12 to -2 degrees C and 97 to 157 degrees C, respectively, while an increase from -33 to -8 degrees C and 115-153 degrees C was observed for their 1,4-butanediol derived counterparts. Furthermore, the slow crystallization rate of poly(ethylene succinate) from molten state could be significantly accelerated by the introduction of amide moieties into the polymer backbone.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0014-3057
isbn 1873-1945
year published 2020
volume 129
digital object identifier (doi) 10.1016/j.eurpolymj.2020.109622
web of science category Polymer Science
subject category Polymer Science
unique article identifier WOS:000525883800013
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journal impact factor 3.862
5 year journal impact factor 4.166
category normalized journal impact factor percentile 84.831
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