Kinetics of cotelomerization of 3-(trimethoxysilyl)propylmethacrylate and perfluorodecylacrylate

Francis Pardal (1) , Vincent Lapinte (1) , Jean-Jacques Robin (1)

1 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

The telomerization of 3-(trimethoxysilyl)propyl methacrylate (TMSPMA) in the presence of 2-mercaptoethanol was investigated at 80 C in acetonitrile. In our case, the efficiency of 2-mercaptoethanol as telogen agent, with TMSPMA, was demonstrated and the transfer constant (CT) was determined. Moreover, cotelomerization of TMSPMA with perfluorodecylacrylate (PFDA) using various PFDA contents was investigated in order to obtain a-hydroxy oligomers with statistical copolymer-type main chains bearing trimethoxysilyl and perfluoro pendant chains. Until 10 mol% PFDA, no phase separation occured. In this composition, rTMSPMA and rPFDA reactivity ratios were calculated, thus showing a tendency for a statistical distribution of the monomer units in the copolymer.

Mots clés: Copolymerization; Fluorinated polyacrylate; Kinetic; Reactivity ratio; Telomerization

Domaines: Polymères

Francis Pardal, Vincent Lapinte, Jean-Jacques Robin. Kinetics of cotelomerization of 3-(trimethoxysilyl)propylmethacrylate and perfluorodecylacrylate. European Polymer Journal, 2009, 45, pp.1198-1207. ⟨10.1016/j.eurpolymj.2008.12.035⟩. ⟨hal-00367170⟩