标题：Porous Polymers Derived from Octavinylsilsesquioxane by Cationic Polymerization
作者：Du, Yajing; Ge, Mingtao; Liu, Hongzhi
作者机构：[Du, Yajing; Ge, Mingtao; Liu, Hongzhi] Shandong Univ, Key Lab Special Funct Aggregated Mat, Minist Educ, Sch Chem & Chem Engn, Jinan 250100, Shandong 更多
通讯作者：Liu, HZ;Liu, HZ
通讯作者地址：[Liu, HZ]Shandong Univ, Key Lab Special Funct Aggregated Mat, Minist Educ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China;[Liu, HZ]Hang 更多
来源：MACROMOLECULAR CHEMISTRY AND PHYSICS
关键词：cationic polymerization; porous materials; silsesquioxanes
摘要：A new rapid and efficient approach is developed for the preparation of porous materials via cationic polymerization of octavinylsilsesquioxane (OVS). The reaction proceeds rapidly and efficiently at room temperature, forming a predominantly covalent porous network polymer. A series of experiments are conducted to clarify the effects of reaction time, temperature, and solvent on the polymerization process. The results show that all the products possess a nanoporous structure with surface areas of approximately 300 - 620 m(2) g(-1) and a pore volume of 0.15 - 0.54 cm(3) g(-1). The porosity of these polymers can be readily tailored by changing the reaction conditions. The post functionalization of the materials is further investigated by epoxidation and the application of these polymers as carbon dioxide adsorbents (up to 0.98 mmol g(-1)) is also explored. The work has general implications in understanding the reactive nature of the cationic polymerization of OVS and is very promising for promoting the application of porous materials.