配位纳米通道中不饱和金属位点介导的自由基共聚反应

Radical Copolymerization Mediated by Unsaturated Metal Sites in Coordination Nanochannels.

作者信息

Uemura Takashi, Mochizuki Shuto, Kitagawa Susumu

机构信息

Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.

CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.

出版信息

ACS Macro Lett. 2015 Jul 21;4(7):788-791. doi: 10.1021/acsmacrolett.5b00370. Epub 2015 Jul 8.

DOI:10.1021/acsmacrolett.5b00370

PMID:35596478

Abstract

Radical copolymerization of methyl methacrylate (MMA) and styrene was performed in [Tb(1,3,5-benzenetrisbenzoate)] with coordinatively unsaturated metal sites (UMS) immobilized along the one-dimensional nanochannels. A drastic increase in the proportion of MMA units in the resulting copolymers was obtained compared with that obtained from the corresponding solution polymerization systems. Simultaneous coordination of MMA to the UMS is the key to increasing the MMA proportion during the copolymerization in the nanochannels, which was demonstrated by variable temperature IR measurements and several controlled experiments.

摘要

甲基丙烯酸甲酯（MMA）和苯乙烯的自由基共聚反应是在沿一维纳米通道固定有配位不饱和金属位点（UMS）的[铽（1,3,5-苯三苯甲酸酯）]中进行的。与相应的溶液聚合体系相比，所得共聚物中MMA单元的比例大幅增加。MMA与UMS的同时配位是纳米通道中共聚过程中提高MMA比例的关键，这通过变温红外测量和几个对照实验得到了证明。