Patent ID: 6777513
Filing Date: 2004-08-17
Classification: C08F

Abstract:
A process for preparing polymers, comprising to steps of:a) bringing into contact to obtain a polymer: at least one ethylenically unsaturated monomer, at least one source of free radicals, and at least one compound of general formula (IA), or (IC): â€ƒwherein: R2 represents a group of formula: â€”CH2R5â€², wherein R5â€² represents an alkyl group substituted by at least one fluorine atom, chlorine atom, or bromine atom; R1 and R1â€² represent: an alkyl, acyl, aryl, alkene, or alkyne group (i), optionally substituted, a carbocyclic system (ii), saturated or unsaturated, optionally substituted or aromatic, a heterocyclic system (iii), saturated or unsaturated, optionally substituted, these groups and cyclic systems (i), (ii) and (iii) being optionally substituted by substituted phenyl groups, substituted aromatic groups, alkoxycarbonyl or aryloxycarbonyl (â€”COOR) groups , carboxy (â€”COOH) groups, acyloxy (â€”O2CR) groups, carbamoyl (â€”CONR2) groups, cyano (â€”CN) groups, alkylcarbonyl groups, alkylarylcarbonyl groups, arylcarbonyl groups, arylalkylcarbonyl groups, phthalimido groups, maleimido groups, succinimido groups, amnidino groups, guanidimo groups, hydroxyl (â€”OH) groups, amino (â€”NR2) groups, halogen atoms, allyl groups, epoxy groups, alkoxy (â€”OR) groups, S-alkyl groups, S-aryl groups, or groups having hydrophilic or ionic character, R representing an alkyl or aryl group, ora polymer chain, p is between 2 and 10, and b) recovering the polymer.