文献类型：期刊文献

英文题名：Suspension polymerization of 2-pyrrolidone in the presence ofCO2and organic promoters

作者：Chen, Tao[1,2,5,6];Wang, Chengcheng[1,2];Zhao, Liming[3,4,5,6];Wang, Lejun[5,6];Qiu, Yongjun[3,4,5,6]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Sch Biotechnol, Shanghai, Peoples R China;[4]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China;[5]China Natl Light Ind, Key Lab Biobased Mat Engn, Shanghai, Peoples R China;[6]Ease China Univ Sci & Technol, ECUST HITECH Biobased Mat Res Inst, Shanghai, Peoples R China

年份：2021

卷号：138

期号：4

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20203209020357);WOS:【SCI-EXPANDED(收录号:WOS:000556184500001)】；

基金：The National Key Research and Development Program of China, Grant/Award Numbers: 2017YFB0309301, 2017YFB0309302; The Natural Science Foundation of Shanghai, China, Grant/Award Number: 17ZR1407200

语种：英文

外文关键词：biodegradable; biopolymers and renewable polymers; ring-opening polymerization; synthesis and processing techniques; thermal properties

摘要：Polybutyrolactam (PBL), known as polyamide 4 with high performance, was synthesized using CO(2)by combining organic promoters in suspension to overcome the limitations of traditional bulk polymerization and improve the thermal stability. Upon increasing the amount of paraffin oil or sodium dodecyl sulfate, which proved to be the most suitable medium and dispersant, or increasing the concentration of alkaline catalyst and CO2, or the rate of stirring, the inherent viscosity increased first and then decreased, while the yield did not follow the same trend. Adding 18-crown-6 ether greatly increased the yield but decreased the inherent viscosity, contrary to the trend that was reported for bulk polymerization. The yield and inherent viscosity both increased with increasing concentration of tetramethyl ammonium chloride. PBL particles were loosely structured and presented improved thermal stability compared with any other report on suspension polymerization. This study provides a promising method to produce PBL with high performance on a large scale.