采用蠕虫状介孔 SiO2(MSU-J)和γ-(甲基丙烯酰氧)丙基三甲氧基硅烷后嫁接法有机化修饰的MSU-J-G,与MMA原位聚合制备具有三维纳米网络结构的MSU-J/PMMA和MSU-J-G/PMMA杂化材料.研究了杂化材料的微观结构、力学性能和热性能.结果表明:杂化材料中MSU-J及MSU-J-G保持原有的蠕虫状介孔结构,且近90％孔道被PMMA填充.MSU-J或MSU J-G质量分数为7％时,两类杂化材料的性能最优,相对于纯PMMA,其拉伸强度和模量分别提高了38.9％和40.2％ (MSU-J)以及46.7％和39.5％ (MSU-J-G),断裂伸长率及冲击强度略有下降.杂化材料的热分解温度(Td)及玻璃化转变温度(Tg)也得到了改善.相对于MSU-J,MSU-J-G在PMMA中分散更均匀,对于杂化材料的力学和热性能改善效果更佳.
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