用硅酸钠制备了聚硅酸溶胶,作为制备有机/无机杂化材料的无机组分前驱物,以甲基丙烯酰氧丙基三甲氧基硅烷为偶联剂,通过溶胶-凝胶技术与甲基丙烯酸丁酯制得两相间有共价键结合的透明聚甲基丙烯酸丁酯/二氧化硅杂化材料.用红外光谱、透射电镜、TG和DSC等对杂化材料进行了表征,热失重分析表明,杂化材料的热稳定性随SiO2含量的增加而提高,且杂化材料的玻璃化温度Tg也有一定的提高,同时杂化材料的透光率可达80%,硬度比纯PBMA有很大的提高.
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