No Solvent Synthesis Of Silicone Phosphate Salt And Its Properties

This thesis took the lead in synthesizing many different structure silicone polyether phosphate copolymers(PK) in the absence of solvent, and studying the physical and chemical properties of material middlings and products particularly.Firstly, according to the forerunner's research, we synthesised many different structure allyl polyethers intermediates (AP) and analysed their physical and chemical properties; Secondly , in the absence of solvent , we prevented the said reactions and improved the hydrosilylation reaction conversion ratio by the additive and studied the different hydrosilylation conditions of the different molecular weight AP and the different Si~H content poJy(hydrogenmethy1 - siloxane - co - Dimethyl-siloxane) s (HS) . We attained the optimal hydrosilylation technics and synthesised a series of silicone polyether copolymers (GM). Further more , we amended the evaluating measure of the hydrosilylation conversion ratio. At last, in the absence of solvent , we studied the phosphate reaction condition and attainted the better technics and synthesised a series of PKs and tested their applied properties and structure .During the course of performing this thesis , we analysed the molecular structure of the material , middlings and products through the chemical methods and modern analytical and testing instruments. We traced the Si-H content and C=C content in the hydrosilylation by the chemical titration and confirmed the reaction conversion ratio. The molecular structure of AP, SH and GM were measured by IR and 29SiNMR. The molecular weight of AP, SH and GM were analysed by GPC.The reaction progess was defined by comparing IR spectrum and 29SiNMR spectrum of the reactants and that of the resultant. The object product was defined through the molecular weight change attainted by GPC of thereactants and that of the resultant.