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Penultimate Propagation Kinetics of Butyl Methacrylate, Butyl Acrylate, and Styrene Terpolymerization
Author(s) -
Li Deheng,
Hutchinson Robin A.
Publication year - 2007
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200700149
Subject(s) - kinetics , butyl acrylate , polymer chemistry , styrene , ternary operation , copolymer , acrylate , methacrylate , polymerization , materials science , methyl methacrylate , ternary numeral system , radical polymerization , thermodynamics , chemistry , polymer , composite material , physics , quantum mechanics , computer science , programming language
The pulsed‐laser polymerization technique is used to determine the composition‐averaged free‐radical propagation rate coefficient ( k p,ter ) for terpolymerization of butyl methacrylate, butyl acrylate, and styrene between 60 and 120 °C. A significant deviation from terminal model predictions is observed for the ternary system, indicating that penultimate kinetics are important at these industrially relevant temperatures. The implicit penultimate propagation model, with all the coefficients taken from previous studies of the binary systems, provides a good prediction of the experimental k p,ter results.