关键词: 有机硅氧烷, 水解, 自组装, 二氧化硅, 复合材料

Abstract: During the sol-gel process of organosiloxane，supermolecular self-assembly structures are often formed，which extremely affects the hydrolysis/condensation behavior of precursors. Mainly considering the effect of structure of alkyl group in the precursors molecules and the inducing action of additive molecules，this paper reviewes the typical studies about the self-assembly behavior of organosiloxane during the sol-gel process in recent years. The main directions in this field are analyzed. Designing and synthesizing the organosiloxane molecules with special functional group as precursors，based on the intermolecular interaction between precursors and additive molecules，to prepare the long-range ordered silica-based composite material by the cooperative action between hydrolysis/condensation reaction and supermolecular self-assembly structure will be the focus of research.

Key words: organosiloxane, hydrolysis, self-assembly, silica, composites