%0 Journal Article
%T Synthesis of Aminopropyl-functionalized Periodic Mesoporous Organosilica by Post-grafting Method<br>后接枝法合成氨丙基修饰的周期性介孔氧化硅材料
%A ZHONG Zhen-Xing
%A WEI Qi
%A WANG Fei
%A LI Qun-Yan
%A NIE Zuo-Ren
%A ZOU Jing-Xia
%A <br>钟振兴
%A 韦 奇
%A 王 飞
%A 李群艳
%A 聂祚仁
%A 邹景霞
%J 无机材料学报
%D 2008
%I Science Press
%X Aminopropyl groups were used to functionalize the pore channels of periodic mesoporous organosilicas(PMOs) by the post-grafting method. The final materials were investigated by means of XRD, TEM, solid-state NMR, N2 adsorption and Elementar Analysis. The results show that bridging groups in the framework do not cleave and amino groups are attached covalently to the pore wall of periodic mesoporous organosilica after functionalization. The mesoscopic order remains good with increasing aminopropyl groups coverage up to 25mol%. The surface area, pore volume and pore size tend to decrease as the concentration of APTMS increases, but the materials with 25mol% aminopropyl groups still preserve a desirable pore structure, with surface area of 604m 2·-1, pore volume of 0.62cm3·-1 and sharp pore size distribution centered between 4.5nm and 5nm. Aminopropyl-functionalized PMOs facilitates absorption of (HAuCl)-complex.
%K PMOs
%K terminal functionalization
%K aminopropyl-groups
%K mesoscopic pore structure<br>PMOs
%K 表面修饰
%K 氨丙基基团
%K 介孔结构
%K 接枝法
%K 合成
%K 氨丙基
%K 修饰剂
%K 周期性
%K 介孔氧化硅材料
%K Method
%K Mesoporous
%K Periodic
%K 吸附作用
%K 氯金酸
%K 窄分布
%K 比表面积
%K 介孔结构
%K 趋势
%K 孔径
%K 孔容
%K 共价连接
%K 基团
%K 结果
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=21FDE49A9A507194DF3970BEC0C017A5&yid=67289AFF6305E306&vid=EA389574707BDED3&iid=0B39A22176CE99FB&sid=A53D7AA35F9929AF&eid=216EFB25F7F834CC&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=1&reference_num=15