以γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)水解缩聚所得的反应型低聚硅氧烷(Oss)为交联剂,丙烯酸丁酯(BA)、苯乙烯(sT)为共聚单体,偶氮二异丁腈(AIBN)为引发剂,通过本体聚合合成了高吸油凝胶.考察了单体配比、引发剂用量、交联剂用量对其吸油性能的影响.结果表明,随单体质量比(m(ST)/m (BA))、交联剂用量、引发剂用量的增加,凝胶的吸油率先增大后减小;当单体质量比(m(ST)/m(BA))为1∶2,m(交联剂)/m (BA+ ST)=0.208/100、m(引发剂)/m(BA+ ST)=1.5/100时,在55℃反应12 h所合成的吸油凝胶吸油性能最好,对氯仿的吸油率达到66.2g/g,保油率达到90％以上,可以重复使用10次以上.
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