异丙氧基 meaning in English
isopropoxy
Examples
- In this thesis , the development of emulsion polymerization theory and related new technologies are comprehensively reviewed , and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed . based on the current development and research in this field , attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons , that is , 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized , which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer , different acrylates and a reactive emulsifier . by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor , the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented , as a result , organosilicon content in the macromolecular chain is increased
同时采用有机硅单体延迟滴加及添加水解抑制剂等技术，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合过程中的过渡水解及缩合反应，提高了聚合物大分子链中有机硅链节的含量；利用红外光谱与差示扫描量热仪对产物分子结构进行了表征，并通过对共聚产物力学和吸水率的测试，证实了本研究所制备的有机硅改性丙烯酸酯共聚物具有比纯丙烯酸酯聚合物更优良的力学及耐水性能；从分子设计角度出发，利用醇解反应合成出水解、缩合反应速率较慢的两种新型不饱和有机硅单体： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三异丙氧基硅烷；利用核磁共振对新型硅烷单体结构进行了证实；研究表明利用新型硅烷单体可以制备出高硅烷含量的有机硅改性丙烯酸酯乳液，且其聚合产物具有较高的力学及耐水性能。