Facile one-pot synthesis and thermal cyclopolymerization of aryl bistrifluorovinyl ether monomers bearing reactive pendant groups
作者:Kaizheng Zhu、Scott T. Iacono、Stephen M. Budy、Jianyong Jin、Dennis W. Smith
DOI:10.1002/pola.23953
日期:2010.5.1
A diverse pool of aryl bistrifluorovinyl ether (BTFVE) compounds with reactive pendant groups were prepared in a facile, high yielding three step “one‐pot” synthesis from commercial 4‐bromo(trifluorovinyloxy)benzene. Monomers were confirmed from ATR–FTIR, 1H, 13C, and 19F NMR, and HRMS analysis. Aryl BTFVE compounds were thermally polymerized to afford perfluorocyclobutyl (PFCB) aryl ether polymers
由工业上的4-溴(三氟乙烯基氧基)苯以简便,高产的三步“一锅法”合成方法制备了具有反应性侧基的各种芳基双三氟乙烯基醚(BTFVE)化合物。通过ATR–FTIR,1 H,13 C和19 F NMR以及HRMS分析确认了单体。芳BTFVE化合物进行热聚合反应,得到全氟环丁烷(PFCB)芳基具有高的数均分子量(醚聚合物中号Ñ)均聚物(17,050-27,090)和乙烯与4,4'-二(三氟乙烯基氧)联苯基的单体(27,860- 56,500)。PFCB芳基醚均聚物和共聚物共同具有很高的热稳定性(在N 2中> 299°C),并且易于溶液加工以生产光学透明膜。除了用丙烯酸酯官能化的那些之外,还实现了热聚合并且反应性部分保持完整。在丙烯酸酯官能化的聚合物的情况下,通过首先使丙烯酸酯光聚合,然后对芳基三氟乙烯基醚端基进行热固化,来实现正交聚合。这项研究的初步结果成功制备了光可定义的PFCB芳基醚材料。©2010