Laser-powered homogeneous pyrolysis of 1,1-dimethyl-1-silacyclobutane in the presence of some common monomers
作者:Josef Pola、Dana Čukanová、Milan Minárik、Antonin Lyčka、Jaroslav Tláskal
DOI:10.1016/0022-328x(92)83157-d
日期:1992.4
Laser-induced homogeneous pyrolysis of 1,1-dimethyl-1-silacyclobutane yields 1,1,3,3-tetramethyl-1,3-disilacyclobutane and ethene as major products. In the presence of vinyl acetate, allyl methyl ether, acrolein, methyl vinyl ether, methyl acrylate or methyl methacrylate, the intermediate dimethylsilene is trapped by these monomers, or by products of their thermal decomposition, to yield both volatile
激光诱导的1,1-二甲基-1-硅环丁烷均相热解生成1,1,3,3-四甲基-1,3-二硅环丁烷和乙烯作为主要产物。在乙酸乙烯酯,烯丙基甲基醚,丙烯醛,甲基乙烯基醚,丙烯酸甲酯或甲基丙烯酸甲酯的存在下,中间体二甲基硅被这些单体或其热分解产物捕获,从而生成挥发性和粘性或固体有机硅化合物。讨论了这些产物的形成方式。认为乙氧基三甲基硅烷是由于将三甲基硅烷醇加成到乙烯中而产生的,这在该反应的独立热引发中得到了证实。建议二甲基硅与不饱和甲基醚反应生成甲氧基三甲基硅烷并与丙烯酸甲酯共聚。