有机硅的工业品如硅树脂,硅漆等是由各种甲基和苯基氯硅烷经水解和缩聚得来的。由水解和缩聚条件的改变,生成产物的分子有了不同程度的环化;这样就影响了产品的性质。所以用同样成份的单体在不同条件下水解和缩聚,所得产品的性质有显著的不同。这是研究有机硅氧型化合物的人常常注意到的现象。用二甲基二氯硅烷为例,它水解和缩聚的过程如下: Silicone industrial products such as silicones, silicones and so on by a variety of methyl and phenyl chlorosilanes by hydrolysis and polycondensation derived. By the hydrolysis and polycondensation conditions change, the product molecules have different degrees of cyclization; thus affecting the nature of the product. Therefore, with the same composition of the monomer hydrolysis and polycondensation under different conditions, the nature of the resulting products are significantly different. This is a phenomenon often noticed by those who study organo-silicon compounds. With dimethyldichlorosilane, for example, its hydrolysis and polycondensation process is as follows: