文献类型：期刊文献

中文题名：反相微乳液模板法合成介孔聚苯乙烯

英文题名：Synthesis of Mesoporous Polystyrene Using Reversed Microemulsion Template Method

作者：路霞[1];唐静[1];范玉冰[1];胡军[1];刘洪来[1]

机构：[1]华东理工大学化学系,结构可控先进功能材料及其制备教育部重点实验室,上海200237

年份：2009

卷号：25

期号：1

起止页码：178

中文期刊名：物理化学学报

外文期刊名：Acta Physico-Chimica Sinica

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000262685100032)】；北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；PubMed;

基金：国家自然科学基金(20776045,20736002);长江学者创新团队(IRT0721);111引智计划(B08021);上海市自然科学基金(07ZR14029)资助项目

语种：中文

中文关键词：介孔材料;聚苯乙烯;反相微乳液;模板;层状结构

外文关键词：Mesoporous material; Polystyrene; Reversed microemulsion; Template; Lamellar structure

摘要：提出并实施了反相微乳液为模板合成介孔聚合物的新方法.通过考察氯仿/CTAB/水三元系反相微乳液的稳定性,以及均相微乳液粒径变化规律,得到了三元反相微乳液体系的稳定区域.以(NH4)2S2O8为引发剂,利用此反相微乳液为模板合成得到介孔聚苯乙烯材料.产物的XRD图谱中有两个明显的衍射峰,对应的晶面间距离d分别为2.6和1.3nm,1/d值之比等于1∶2,为层状结构.N2气吸附/脱附曲线表明大部分孔径为1.7nm,与动态光散射测得的微乳液液滴的尺寸相一致.
Using a reversed microemulsion as template, we developed a new and convenient synthesis method for mesoporous polymer materials. Based on a study of the stability and sizes of microemulsions at different mass ratios of CHClJCTAB/H2O, a stable reversed microemulsion region was discovered. The stable reversed microemulsion was used as a reaction system for the preparation of mesoporous polystyrene. The initiator （NH4）2S2O8 was dissolved in the reversed microemulsion＇s water core and polymerization of styrene was initiated at the oil-water interface of the microemulsion. With one intense and another weak diffraction peak, the synthesized polystyrene gave a typical XRD pattern for a lamellar mesostructure. The corresponding lameUar spacing of the （100） and （200） planes were 2.6 and 1.3 nm, respectively. The N2 adsorption/desorption isothermal suggested that the average pore size of the mesoporous polystyrene was mostly 1.7 nm which coincided with the size of water drops in the reversed microemulsion.