| abstract |
Polymer composition resulting from the polymerization of a polymerizable composition comprising: - at least 50% by weight of a monomer or of a mixture of monomers corresponding to formula I (CF DRAWING IN BOPI) in which R1 and R2, identical or different, denote hydrogen or C1 -C6 alkyl; X denotes (CF DRAWING IN BOPI) m + n is between 0 and 10. 0 to 50% by weight of one or more vinylic, acrylic (s) or methacrylic (s) mono or polyfunctional (II) comonomers: - from 0.5 to 15% relative to the weight components I + II, of a compound of formula (III) (CF DRAWING IN BOPI) in which R3 and R4 denote hydrogen or else one of the radicals R3 or R4 is a hydrogen atom while the other forms a ring with R7, R5, R6 and R7 are hydrogen, alkyl possibly being substituted (s) by OH and / or interrupted. |