文献类型：期刊文献

英文题名：Facile Synthesis of Thermoplastic Polyamide Elastomers Based on Amorphous Polyetheramine with Damping Performance

作者：Jiang, Jie[1];Tang, Qiuyu[1];Pan, Xun[2];Li, Jinjin[1];Zhao, Ling[1,3];Xi, Zhenhao[1];Yuan, Weikang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Flinders Univ S Australia, Flinders Inst Nanoscale Sci & Technol, Sturt Rd, Bedford Pk, SA 5042, Australia;[3]Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China

年份：2021

卷号：13

期号：16

外文期刊名：POLYMERS

收录：;EI(收录号：20213310787243);WOS:【SCI-EXPANDED(收录号:WOS:000689947000001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 21978089 and No. 21878256), the Fundamental Research Funds for the Central Universities (Grant No. 22221818010), and the 111 Project (Grant No. B20031).

语种：英文

外文关键词：one-pot method; polyamide; elastomer; PPG diamine; damping property

摘要：Novel thermoplastic polyamide elastomers (TPAEs) consisting of long-chain semicrystalline polyamide 1212 (PA1212) and amorphous polyetheramine were synthesized via one-pot melt polycondensation. The method provides accessible routes to prepare TPAEs with a high tolerance of compatibility between polyamide and polyether oligomers compared with the traditional two-step method. These TPAEs with 10 wt % to 76 wt % of soft content were obtained by reaction of dodecanedioic acid, 1,12-dodecanediamine, and poly(propylene glycol) (PPG) diamine. The structure-property relationships of TPAEs were systematically studied. The chemical structure and the morphologic analyses have revealed that microphase separation occurs in the amorphous region. The TPAEs that have long-chain PPG segments consist of a crystalline polyamide domain, amorphous polyamide-rich domain, and amorphous polyetheramine-rich domain, while the ones containing short-chain PPG segments comprise of a crystalline polyamide domain and miscible amorphous polyamide phase and amorphous polyetheramine phase due to the compatibility between short-chain polyetheramine and amorphous polyamide. These novel TPAEs show good damping performance at low temperature, especially the TPAEs that incorporated 76 wt % and 62 wt % of PPG diamine. The TPAEs exhibit high elastic properties and low residual strain at room temperature. They are lightweight with density between 1.01 and 1.03 g/cm(3). The long-chain TPAEs have well-balanced properties of low density, high elastic return, and high shock-absorbing ability. This work provides a route to expand TPAEs to damping materials with special application for sports equipment used in extremely cold conditions such as ski boots.