ES289945A1 - A procedure for preparing polymers and copolymers of vinyl fluoride of high molecular weight (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A process for preparing polymers and copolymers of high molecular weight vinyl fluoride, characterized in that vinyl fluoride is polymerized or copolymerized in the presence or absence of a solvent or dispersing medium, at temperatures below 80º C and preferably lower than the critical temperature of vinyl fluoride, at a pressure lower than 100 atmospheres, in the presence of a polymerization initiator constituted by the coordination compounds obtained by reacting an alkyl boron derivative with ammonia, hydroxylamine or a monofunctional or polyfunctional organic nitrogen base, which coordination compounds are represented by the general formula ** (See formula) ** where R 'and R "are the miems or different alkyl groups, linear or branched, with 1 to 6 carbon atoms, cycloalkyl groups, arylalkyl groups and substituted or unsubstituted aryl groups; R '' ', can be equal to R' or R "or can be a hydrogen or halogen atom or an OR group where O is oxygen and R is an organic radical with a structure comprised in those exposed for R 'and R "; B is a boron atom; and is a molecule of ammonia, of hydroxylamine or of an organic base containing nitrogen and n is the number of coordinative nitrogen atoms present in the organic nitrogen base. (Machine-translation by Google Translate, not legally binding)