文献类型：期刊文献

英文题名：Design of new benzoxazines with excellent thermal stability and processability using the "gold panning" method

作者：Zhang, Yunyao[1];Tian, Jiaxiong[1];Liu, Xiaoyun[1];Yang, Yunhe[1];Zhuang, Qixin[1]

机构：[1]East China Univ Sci & Technol, Lab Specially Functional Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China

年份：2022

卷号：180

外文期刊名：EUROPEAN POLYMER JOURNAL

收录：;EI(收录号：20224212899361);WOS:【SCI-EXPANDED(收录号:WOS:000875477800003)】；

基金：Acknowledgements This work was financially supported by the National Natural Science Foundation of China (22171086, 52073091, and 51773060) , and Shanghai Natural Science Foundation (20ZR1414600) .

语种：英文

外文关键词：Benzoxazine; Structure design; Thermal stability; Processability

摘要：In new benzoxazine research, it is a great challenge to strike a balance between excellent thermal stability and good processability. The traditional method is mainly trial-and-error, which is time-consuming and inefficient. High-throughput design and screening are required for material genetic engineering, which has several shortcomings in new benzoxazine development. Herein, a new method characterized by the design of specific structures and screening, which we refer to as the "gold panning", is proposed. Using this method, we designed a series of new benzoxazines with high thermal stability and ease of processing, and we verified the results experimentally. Furthermore, THPE-m-n, a new benzoxazine with excellent thermal stability and processability, was obtained using this method. The THPE-m-n has a melting point of 133 degrees C, a viscosity of 169 pa.s at 140 degrees C, and the T-d5 of poly(THPE-m-n) is 521 degrees C. This is a new kind of benzoxazine with medium viscosity and excellent thermal stability, demonstrating the effectiveness of the method. This method can be used in conjunction with material genetic engineering methods in the field of benzoxazine development to considerably improve the research efficiency of new benzoxazines.