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Molecular Weight Control in Emulsion Polymerization by Catalytic Chain Transfer: A Reaction Engineering Approach
Author(s) -
Smeets Niels M.B.,
Meda Ujwal S.,
Heuts Johan P.A.,
Keurentjes Jos T.F.,
van Herk Alex M.,
Meuldijk Jan
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200751346
Subject(s) - molar mass distribution , catalysis , polymerization , emulsion polymerization , chain transfer , emulsion , polymer chemistry , chemical engineering , materials science , polymer , chemistry , radical polymerization , organic chemistry , engineering
Abstract Summary: For the application of catalytic chain transfer in (mini)emulsion polymerization, catalyst partitioning and deactivation are key parameters that govern the actual catalyst concentration at the locus of polymerization and consequently the final molecular weight distribution. A global model, based on the Mayo equation, catalyst partitioning and deactivation was developed. The influence of several reaction parameters on the instantaneous number average molecular weight was quantified.