Influence of media polarity on the rate of activation of "dormant" chains in nitroxide-mediated radical polymerization

M. Zaremski , O. Borisova , C. Xin , V.B. Golubev , Laurent Billon (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

Rate constants of decomposition of "living" polymeric adducts polystyrene (PS)-TEMPO, poly-4-vinylpyridine-TEMPO, PS-SG1, and polyacrylic acid-SG1 in different solvents were determined by the method of a competitive inhibition by means of electron spin resonance. It was found that with the increase in polarity of solvent, the values of constants become higher for all systems studied. This effect opens a new way of activating chains in nitroxide-mediated radical polymerization. © 2012 Wiley Periodicals, Inc.

Domaines: Chimie

M. Zaremski, O. Borisova, C. Xin, V.B. Golubev, Laurent Billon. Influence of media polarity on the rate of activation of "dormant" chains in nitroxide-mediated radical polymerization. Journal of Polymer Science Part A: Polymer Chemistry, 2012, 50 (16), pp.3437-3443. ⟨10.1002/pola.26134⟩. ⟨hal-01582027⟩