Thermal effects of some polymerisation and polycondensation reactions, polymeric ammonium quaternary salts

Reaction heats of the polymerisation of N,N-diallyl N,N-dimethyl ammonium c hloride were determined with an original differential adiabatic calorimeter , adopting the compensation method of the evolved heat in the studied react ion. The reaction was carried out at 95 degreesC, in an inert gas atmospher e (nitrogen or argon), with an aqueous monomer solution. The second reaction studied in this work was the polycondensation of epichl orohydrin with a mixture of dimethylamine and triethylenetetramine. A calor imetric installation, under controlled temperature conditions with the reac tion heat being transferred by a thermostated cooling agent, was used to me asure the reaction heat within the 18-21 degreesC temperature range. Polymeric quaternary ammonium salts were obtained in both polymerisation an d polycondensation reactions. (C) 2000 Elsevier Science Ltd. All rights res erved.