Biodegradable thermoplastic copolyester elastomers: Methyl branched PBAmT

被引：13

作者：

Neng, Wen-Bo ^{[1
]}

Xie, Wen-Guang ^{[2
]}

Lu, Bo ^{[2
]}

Zhen, Zhi-Chao ^{[2
]}

Zhao, Jun-Long ^{[1
]}

Wang, Ge-Xia ^{[2
]}

Ji, Jun-Hui ^{[2
]}

机构：

[1] Northwest Univ, Coll Chem & Mat Sci, Minist Educ, Key Lab Synthet & Nat Funct Mol, Xian 710127, Peoples R China

[2] Chinese Acad Sci, Natl Engn Res Ctr Engn Plast, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

E-POLYMERS | 2021年 / 21卷 / 01期

基金：

中国国家自然科学基金;

关键词：

poly(butylene 3-methyl adipate co-terephthalate); 3-methyl adipic acid; thermoplastic copolyester elastomers; biodegradable; crystallizability; CO-BUTYLENE TEREPHTHALATE); THERMAL-PROPERTIES; POLYESTER ELASTOMERS; POLY(BUTYLENE; DEGRADATION; COPOLYMERS; ACID;

D O I：

10.1515/epoly-2021-0024

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of novel biodegradable copolyesters named poly(butylene 3-methyl adipate co-terephthalate) (PBA(m)T) were synthesized from the monomers of 3-methyl adipic acid (AA(m)), 1,4-butanediol (BDO), and terephthalic acid (TPA) through a process of esterification and polycondensation. H-1 NMR analysis shows that they are random copolymers whose composition can be well controlled by the feed ratio of monomers. From the results of DSC and XRD, the introduction of methyl group successfully destroys the crystallizability of the PBA(m) chains, thus making it become a relative soft segment compared to PBA, while these random PBA(m)T copolymers constructed by soft segment PBA(m) and rigid segment PBT change from semi-crystalline polymers to nearly amorphous polymers as the feed ratio of A(m) increases. Especially, mechanical tests reveal that the copolymers show outstanding elasticity and rebound resilience with excellent strength. These thermoplastic copolyester elastomers with good performance by simply introduction of branched methyl group on polybutylene adipate terephthalate (PBAT) copolymer chains may well explore the potential application of biodegradable PBAT-based material.

引用

页码：336 / 345

页数：10

共 39 条

[1] Synthesis and Enzymatic Degradation of Soft Aliphatic Polyesters [J].