当前位置: X-MOL 学术J. Polym. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Bio-based cross-linked polyitaconamides synthesized through a Michael ene-amine addition and bulk polycondensation
Journal of Polymer Research ( IF 2.8 ) Pub Date : 2020-02-10 , DOI: 10.1007/s10965-020-2030-z
Kuan Liang , Jingbo Zhao , Ganggang Zhang , Zhiyuan Zhang , Ling Shi , Junying Zhang

Abstract

A simple method is established to synthesize bio-based cross-linked polyitaconamides (cPITAs) through a Michael ene-amine addition and bulk polycondensation. A tetraester, i.e. tetramethyl piperazine-N,N′-bis(2-methylene butanedioate) (TMPB), was synthesized through a Michael addition of dimethyl itaconate and piperazine at 90 °C. Bulk polycondensation of TMPB with butanediamine or hexamethylenediamine was conducted at 130–170 °C under atmospheric pressure, and several cPITAs with tunable properties were prepared. The Michael addition and the polycondensation were monitored by FT-IR and 1H NMR spectra. The cPITA films were characterized by DSC, WAXS, TGA, dynamic mechanical analysis, and tensile test. cPITAs exhibited Tg ranging from 58 to 72 °C, tensile strength up to 85 MPa, and strain at break from 9% to 17%.



中文翻译:

通过迈克尔烯胺加成和本体缩聚合成的生物基交联聚衣康酰胺

摘要

建立了一种简单的方法,可通过迈克尔烯胺加成和本体缩聚反应合成生物基交联聚衣康酰胺(cPITA)。通过在90℃下通过迈克尔加成衣康酸二甲酯和哌嗪来合成四酯,即哌嗪四甲基-N,N′-双(2-亚甲基丁二酸酯)(TMPB)。在大气压下于130–170°C进行TMPB与丁二胺或六亚甲基二胺的本体缩聚反应,并制备了一些具有可调性能的cPITA。通过FT-IR和1 H NMR光谱监测迈克尔的加成和缩聚。通过DSC,WAXS,TGA,动态力学分析和拉伸试验对cPITA膜进行了表征。cPITAs表现出T g 温度范围为58至72°C,抗拉强度高达85 MPa,断裂应变为9%至17%。

更新日期:2020-02-10
down
wechat
bug