State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China.
School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China.
Chem Asian J. 2023 Feb 14;18(4):e202201079. doi: 10.1002/asia.202201079. Epub 2023 Jan 16.
Synthesis of maleic anhydride (MA) and styrene (St) copolymers possessing ultra-high molecular weight, strictly alternating regularity and high glass transition temperature simultaneously is still an issure with great challenge. Herein, the spontaneous alternating copolymerization of MA and St derivatives were investigated by using various Lewis acids. In the presence of alkyl aluminum or butyl magnesium, the MA-St alternating copolymers with ultra-high molecular weight (M ≤166.5×10 ) and high glass transition temperature (211 °C≤T ≤216 °C) were produced and the microstructure of MA-St copolymers were analyzed by H and C NMR spectra. The copolymerizations of MA with St derivatives, including divinylbenzene, p-butenyl styrene, p-methoxystyrene, trans-anethole, p-fluorostyrene and p-chlorostyrene, also were explored by using AlOctyl as an activator in toluene at 50 °C.
马来酸酐（MA）和苯乙烯（St）共聚物的同时具有超高分子量、严格交替规整性和高玻璃化转变温度的合成仍然是一个具有巨大挑战性的问题。本文通过使用各种路易斯酸研究了 MA 和 St 衍生物的自发交替共聚。在烷基铝或丁基镁的存在下，通过 MA-St 交替共聚得到了超高分子量（M≤166.5×10）和高玻璃化转变温度（211°C≤T≤216°C）的共聚物，并通过 H 和 C NMR 谱分析了 MA-St 共聚物的微观结构。以 AlOctyl 为引发剂，在甲苯中于 50°C 下还探索了 MA 与包括二乙烯基苯、对丁烯基苯乙烯、对甲氧基苯乙烯、反式茴香脑、对氟苯乙烯和对氯苯乙烯在内的 St 衍生物的共聚反应。
