An exptl. method to det. reactivity ratios by DSC expts. with stopped polymn. is presented. In different DSC expts., the polymn. is interrupted at different times, by plunging the crucible into liq. nitrogen. The crucibles are then opened, and the content (polymer and monomers) is dissolved and the compn. of the monomers is analyzed by gas chromatog. By using the integrated equation of Meyer and Lowry the reactivity ratios can be estd. by nonlinear parameter fitting. The method was illustrated for Bu acrylate-2-hydroxyethyl methacrylate system with Bz2O2 catalyst. [on SciFinder (R)]
Title
Experimental determination of reactivity ratio: Radical bulk copolymerization of acrylic monomers
Published in
5th International Workshop on Polymer Reaction Engineering
Series
DECHEMA Monographien, 131
Pages
433-43
Date
1995
Publisher
Frankfurt-am-Main, DECHEMA
Note
CAN 124:177009 35-3 Chemistry of Synthetic High Polymers Ecole Polytechnique Federale de Lausanne,Switz. Journal 0070-315X written in English. 141-32-2 (Butyl acrylate); 868-77-9 (2-Hydroxyethyl methacrylate) Role: PEP (Physical, engineering or chemical process), PRP (Properties), RCT (Reactant), PROC (Process), RACT (Reactant or reagent) (DSC exptl. detn. of reactivity ratio in radical bulk copolymn. of Bu acrylate-2-hydroxyethyl methacrylate system)
Record creation date
2006-04-18
