Synthesis and Properties Investigation of Thiophene-aromatic Polyesters: Potential Alternatives for the 2,5-Furandicarboxylic Acid-based Ones

作     者：Jing Gang Wang Xiao-Qin Zhang Ang Shen Jin Zhu Ping An Song Hao Wang Xiao Qing Liu Jing-Gang Wang;Xiao-Qin Zhang;Ang Shen;Jin Zhu;Ping-An Song;Hao Wang;Xiao-Qing Liu

作者机构：Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Universty of Chinese Academy ofSciencesBejing 100049China University of Southern QueenslandSpringfieldQLD 4300Australia 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2020年第38卷第10期

页      面：1082-1091,I0005页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was finanially supported by the National Natural Science Foundation of China(No.21975270) Zhejiang Provincial Natural Science Foundation of China(No.LR20E030001) Ningbo 2025 Key Scientific Research Programs(No.2018810015) National Key Research and Development Program of China(No.2018YFD0400700) Research Project of Ningbo Natural Science Foundation(No.2019A610141) 

主　　题：2,5-Thiophenedicarboxlic acid(TDCA) 2,5 Furandicarborxylic acid(FDCA) Bio based polyesters Brrier properties 

摘      要：In order to explore new substitutes for 2,5 furandicarboxylic acid(FDCA)or poly(ethylene 2,5 furandicarboxylate)(PEF)and try to develop more ideal bio based polyesters,several thiophene aromatic polyesters(PETH,PPTH,PBTH,and PHTH)were synthesized from dimethyl thiophene 2,5-dicarboxylate(DMTD)and different diols,including ethylene glycol,1,3-propanediol,1,4-butanediol,and 1,*** chemical structures of obtained polyesters were confirmed by nuclear magnetic resonance spectroscopy(H-NMR and 1 C-NMR).Determined by GPC measurement,their average molecular weight(M.)varied from 5.22 x 10*g/mol to 7.94 x 10*g/mol with the molar-mass dispersity of *** on the DSC and TGA results,the synthesized polyesters PETH,PPTH,and PBTH displayed comparable or even better thermal properties when compared with their FDCA-based *** PETH to PHTH,their Tg varied from 64.6°Cto-1°C while Tsm ranged from 409 C to 380°C in nitrogen atmosphere,PETH showed elongation at break as high as 378%,tensile strength of 67 MPa,and tensile modulus of 1800 ***,the CO2 and O2 barrier of PETH was 12.0 and 6.6 folds higher than those of PET,respectively,and similar to those of *** the overall properties,the synthesized thiophene aromatic polyesters,especially PETH,showed great potential to be used as an excellent bio based packaging material in the future.