Copolymerization of functional cyclotrisiloxanes - a reactivity comparison

M. Cypryk; B. Delczyk-Olejniczak

Published : 2010-08-30

Vol. 55 No. 7-8 (2010)

Copolymerization of functional cyclotrisiloxanes - a reactivity comparison

M. Cypryk B. Delczyk-Olejniczak

Abstract

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.

Keywords

cyklosiloksany ; polisiloksany ; kopolimery gradientowe ; anionowa polimeryzacja z otwarciem pierścienia ; współczynniki reaktywności cyclosiloxanes ; polysiloxanes ; gradient copolymers ; anionic ring opening polymerization ; reactivity ratio

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Cypryk, M., & Delczyk-Olejniczak, B. (2010). Copolymerization of functional cyclotrisiloxanes - a reactivity comparison. Polimery, 55(7-8), 503–511. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1033

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