MMA-MAn-APTES共聚物/SiO_2杂化材料的制备和表征  

Preparation and Characterization of Hybrid Material Based on MMA-MAn-APTES Copolymer and Silica

作　　者：姚润琪[1] 

机构地区：[1]江苏省新闻出版学校,江苏南京210012

出　　处：《化工时刊》2007年第6期8-10,共3页Chemical Industry Times

基　　金：江苏省博士后科研资助汁划项目(0602037B);江苏省高校自然科学基金(05KJB150016);江苏大学高级人才基金(06JDG015)

摘　　要：甲基丙烯酸甲酯(MMA)、顺丁烯二酸酐(MAn)和含烷氧基硅烷单体γ-氨丙基二乙氧基硅烷(APTES)以一定比例通过自由基共聚反应制得共聚物前体,将正硅酸乙酯(TEOS)在HCl催化剂作用下水解、缩合形成SiO2,然后由共聚物和SiO2通过溶胶-凝胶法合成纳米杂化复合材料,其中TEOS的质量分数从0至25%。利用傅立叶红外光谱表征了杂化材料的化学结构,溶胶抽取结果表明在杂化材料中凝胶的含量较高,对它们的形貌特性的研究结果表明:在聚合物基体中SiO2具有较好的分散性,有机-无机相相互贯穿。The alkoxysilane- containing copolymer precursor was synthesized by free- radical copolymerization of MMA, MAn and an alkoxysilane - containing monomer, 3 - aminopropyl triethoxysilane （AFTES）, at several feeds. The SiO2, obtained by the hydrolysis of tetraethoxysilane （TEOS）, was condensed under the catalysis of HC1. Hybrid nanocomposite from silica （SiO2） and copolymer were synthesized via the sol - gel process. The TEOS content varied from 0 to 25wt%. FT - IR spectrums were used to analyze the chemical structure. The results of solvent extraction showed that all gel contents in the hybrid materials were much higher. The morphological features were investigated, which showed that the SiO2 phase waswell dispersed in the polymer matrix. The result showed that organic - inorganic phase penetrated each other.

关 键 词：有机-无机杂化材料 溶胶-凝胶过程 电子扫描显微镜热重分析 

分 类 号：TQ316.3[化学工程—高聚物工业]