Synthesis of Conjugated Hyperbranched Polytriazoles Containing Truxene Units by Click Polymerization
作者:Dongzhi Li、Xin Wang、Yutao Jia、Aiqing Wang、Yonggang Wu
DOI:10.1002/cjoc.201100339
日期:2012.4
challenge to synthesize high molecular weight and soluble conjugated hyperbranched poly(1,2,3‐triazole)s (hb‐PTAs). In this paper a series of soluble hyperbranched polytriazoles, whose number‐average molecular weight (Mn) and polydispersity index ranged in (1.2–3.3)×104 and 1.7–3.0, respectively, were synthesized with A2+B3 approach. In the polymerization process, diazides A1–A4 and triyne B1 were used as
合成高分子量和可溶性共轭超支化聚(1,2,3-三唑)(hb-PTA)一直是一项挑战。本文采用A 2 + B 3方法合成了一系列可溶性高支化聚三唑,其数均分子量(M n)和多分散指数分别为(1.2–3.3)×10 4和1.7–3.0 。在聚合过程中,将叠氮化物A1 - A4和三炔B1用作A 2和B 3单体 铜(I)催化剂,四氢呋喃和水用作其反应体系。在室温下,最终分子量可以通过反应时间控制,因此最终我们获得了可溶性共轭超支化聚(1,2,3-三唑)的hb-PTA (1-4)。聚合物可溶于常见的有机溶剂中,并且全部发出蓝光。由于固态中发色单元聚集的差异,聚合物薄膜发出黄光和蓝光。最终共聚物的热性能通过差示扫描量热法(DSC)和热重分析(TGA)进行分析。