Effect of monomer ratio of AA to PTA on properties of PBAT copolyesters

ZHAO Caixia; BAI Xiang; ZOU Guoxiang; HE Yingjie; LI Jinchun

doi:10.11949/j.issn.0438-1157.20160888

您当前的位置：

首页 >

文章列表页 >

Effect of monomer ratio of AA to PTA on properties of PBAT copolyesters

更新时间：2025-11-26

- Effect of monomer ratio of AA to PTA on properties of PBAT copolyesters
- CIESC Journal Issue 1, Pages: 452-459(2017)
- 作者机构：
  
  江苏省材料表面科学与技术重点实验室, 常州大学,江苏,常州,213164
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160888
  CLC： Q31.6
- Online First：05 January 2017，
  
  Published：05 January 2017
- 稿件说明：
移动端阅览
ZHAO Caixia, BAI Xiang, ZOU Guoxiang, et al. Effect of monomer ratio of AA to PTA on properties of PBAT copolyesters[J]. CIESC Journal, 2017, (1): 452-459.
DOI：

ZHAO Caixia, BAI Xiang, ZOU Guoxiang, et al. Effect of monomer ratio of AA to PTA on properties of PBAT copolyesters[J]. CIESC Journal, 2017, (1): 452-459. DOI： 10.11949/j.issn.0438-1157.20160888.

摘要

以己二酸（AA）、对苯二甲酸（PTA）和1，4-丁二醇（BDO）为原料，钛酸四丁酯为催化剂，采用先酯化后缩聚的两步聚合法制备了一系列聚（己二酸/对苯二甲酸丁二醇）（PBAT）共聚酯。研究己二酸与对苯二甲酸不同摩尔比对合成共聚酯的结构、热性能和弹性性能的影响。FTIR和NMR测试结果表明本实验成功合成了PBAT共聚酯。GPC测试结果表明共聚酯的重均分子量（Mw）在41000~142000之间，测试结果与特性黏度具有一致性。DSC测试结果表明随己二酸含量的增加，共聚酯的熔融温度和结晶温度逐渐降低；WXRD测试结果表明随着己二酸含量的不断增加，共聚酯的晶型结构逐渐由PBA转变为PBT；DMA结果表明玻璃化转变温度（Tg）基本呈不断降低的趋势；TGA结果表明PBAT共聚酯的初始分解温度随对苯二甲酸含量的增加向高温区移动，而在高温段共聚酯的热稳定性接近。拉伸结果表明，AA/PTA比例的变化显著影响共聚酯的力学弹性，PBAT7：3具有最大的断裂伸长率，而PBAT3：7则表现为强而韧的拉伸特性。

Abstract

Poly(butyleneadipate-co-terephthalate)(PBAT) copolyesters were synthesized from adipic acid(AA)

p-phthalic acid(PTA) and 1

4-butanediol(BDO) with tetrabutyl titanate as catalyst through a two-step process of esterification and polycondesation.The effects of molar ratio of AA to PTA on the structures

thermal and elastic properties of copolyesters were studied.FTIR and NMR test results showed that PBAT copolyesters were successfully synthesized.GPC test showed the molecular weight(Mw) of copolyesters were between 41000-142000

which was consistent with the result of the intrinsic viscosity.DSC results showed that Tm and Tc were gradually reduced with the increase of adipic acid.WXRD test results indicated that with the increase of adipic acid

the crystal structure copolyesters gradually changed from PBA into PBT.DMA results showed that the Tg of copolyesters trended to decrease with the increase of adipic acid.From TGA curves

the initial decomposition temperature of PBAT copolyesters shifted to the high temperature zone

while the thermal stability of the copolyesters closed at high temperature.It was found from the tensile test that the AA/PTA ratio significantly affected the mechanical properties of copolyesters.PBAT7:3 was of the maximum elongation at break

and PBAT3:7 was of strong and tough tensile properties.

关键词

Keywords

references

Views

345

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Properties of biphenyl A epoxy resin modified by choromethyl polyhedral silsesquioxane

Performance analysis and structural optimization of double-sided spiral groove-type dry gas seal

Preparation of biobased polyurethane adhesives for flexible packaging and their water-resistance and thermal stability assessment

Research progress on the modification, processing and applications of medical-grade polyether ether ketone materials

Preparation and heat resistance of cyanide-derived benzoxazine resins

Related Author

TAN Jun

WANG Huajin

SHA Baoxiang

WEI Xiaoyan

YU Qiang

WANG Yan

WANG Yutong

CHEN Miaomiao

Related Institution

School of Biological and Chemical Engineering, Jiaxing University

School of Materials and Textile Engineering, Jiaxing University

School of Materials Science and Engineering, Changzhou University

School of Mechanical Engineering, Jiangsu Ocean University

Ningbo Fangli Seals Co., Ltd.

⁰