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Copolymerization of functional cyclotrisiloxanes — a reactivity comparison

机译:功能性环三硅氧烷的共聚反应性比较

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摘要

Kinetics of controlled simultaneous copolymerization of hexamethylcyclotrisiloxane (D3) with functional cyclotrisiloxanes was studied using n-BuLi in THF as initiator. Trifunctional (MeXSiO)3 (X3), where X = vinyl, trifluoropropyl or chloropropyl group, and monofunctional monomers [(Me2SiO)2MeXSiO] (D2X), where X = cyanopropyl or n-octyl group, were used as monomers. Reactivity ratios for each pair of comonomers were determined and the possibility of synthesis of gradient copolymers by this method is discussed.
机译:以正丁基锂为引发剂,研究了六甲基环三硅氧烷(D3)与官能环三硅氧烷同时受控共聚的动力学。三官能团(MeXSiO)3(X3),其中X =乙烯基,三氟丙基或氯丙基,和单官能团单体[(Me2SiO)2MeXSiO](D2X),其中X =氰丙基或正辛基,用作单体。确定了每对共聚单体的反应率,并讨论了用这种方法合成梯度共聚物的可能性。

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