基于静电相互作用的核壳型复合微球制备  

Preparation of composite microspheres with core/shell structure by electrostatic interaction

作　　者：高阳 王海燕 沈淑坤 胡道道[1] 

机构地区：[1]历史文化遗产保护教育部工程研究中心陕西师范大学化学与材料科学学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2011年第5期55-61,共7页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(20576068)

摘　　要：借助荷正电AEM修饰的P(AM-MAA-VP)微球与荷负电SiO2胶体粒子相互作用,制得具有核壳结构的聚(丙烯酰胺-甲基丙烯酸-乙烯基吡咯烷酮)/SiO2(P(AM-MAA-VP)/SiO2)复合微球材料.结果表明,AEM用量、SiO2胶体溶液的用量、SiO2负载量及后处理方法均会对核壳型复合微球形貌产生一定影响.基于所得到研究结果,可通过改变模板微球及沉积反应前驱体组成,获得具有不同组成的核壳型复合微球材料.The poly（acrylamide-methacrylic acid-N-vinylpyrrolidinone）/silica（P（AM-MAA-VP）/SiO2） composite microspheres with core-shell structure were prepared via electrostatic interaction between negatively charged SiO2 nanoparticles and the positively charged microgels modified by 3-（trimethoxysilyl）-propyldimethyl octadecylammonium chloride（AEM）.The results indicated that the surface morphology of composite microspheres with core/shell structure can be affected by the dosage of AEM,the dosage of SiO2 colloid,loading manner and solvent constitute.Based on the results obtained,the method can be used to prepare various composite microspheres with core/shell structure by changing the organic template and inorganic precursor.

关 键 词：P(AM-MAA-VP) P(AM-MAA-VP)/SiO2复合微球 静电相互作用法 

分 类 号：O648[理学—物理化学]