Accelerating polyester hydrolysis through blending with bio-based poly (4-hydroxyphenylacetate) multiblock copolymers

被引：0
|
作者：
Terzi, Matina [1 ]
Celestre, Virginia [1 ]
Tang, Peter [1 ]
Madsen, Jeppe [1 ]
Daugaard, Anders E. [1 ]
机构：
[1] Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
来源：
EUROPEAN POLYMER JOURNAL | 2025年 / 228卷
关键词：
Bio-based; 4-Hydroxyphenylacetic acid; Liquid crystalline; Blends; Hydrolysis; MOLECULAR-WEIGHT; ACID; DEGRADATION; MECHANISM;
D O I：
10.1016/j.eurpolymj.2025.113841
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(4-hydroxyphenylacetic acid), PHPA is a bio-based aromatic polyester synthesized by polycondensation of 4hydroxyphenylacetic acid (HPA) in bulk. The liquid crystalline behavior of PHPA allows transesterification with commonly used polyesters like PLA, PETG, and PCL at relatively low temperatures to give multiblock copolymers that have a high blending compatibility with the parent polyester. The resulting polymer blends with PLA exhibit accelerated hydrolytic degradation compared to pristine PLA and a 36 % decrease of the flexural modulus of the blends of PLA containing up to 10 % of PHPA-PLA multiblock copolymers.
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页数：15
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