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Homo‐ and copolymerization with a highly active Ziegler–Natta catalyst
Author(s) -
Böhm L. L.
Publication year - 1984
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1984.070290126
Subject(s) - natta , enthalpy , ziegler–natta catalyst , copolymer , thermodynamics , catalysis , ethylene , entropy (arrow of time) , materials science , polymer chemistry , reaction rate constant , chemistry , polymerization , organic chemistry , kinetics , physics , polymer , composite material , quantum mechanics
The copolymerization of ethylene and 1‐butene with a highly active Ziegler–Natta catalyst has been investigated at different temperatures. The r parameters and the propagation rate constants have been determined. From the temperature dependence of the rate constants, entropy and enthalpy values have been calculated. These data show the enthalpy values to be small in comparison to entropy, which means that these processes are predominantly controlled by entropic factors.