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Dynamic simulation and experimental evaluation of EPDM terpolymerization with vanadium‐based catalyst
Author(s) -
Haag Mônica Carcuchinski,
dos Santos João Henrique Zimnoch,
Dupont Jairton,
Secchi Argimiro Resende
Publication year - 1998
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/(sici)1097-4628(19981107)70:6<1173::aid-app15>3.0.co;2-0
Subject(s) - vanadium , materials science , catalysis , chemical engineering , copolymer , polymer chemistry , polymer science , chemistry , composite material , polymer , organic chemistry , engineering , metallurgy
The development of a simplified kinetic model describing some effects observed in catalyzed olefin terpolymerization is presented. Based on the method of moments, the model describes the influence of Al / V ratio and diene concentration on reaction yield and on polymer characteristics such as molecular weight, ethylene incorporation, and polydispersity. In order to verify the model validity, the terpolymerization reactions were performed using VOCl 3 –Al 2 Et 3 Cl 3 systems and 2‐ethylidenebi‐cyclo[2.2.1]hept‐5‐ene (ENB) as diene. The results of dynamic simulation fit well the experimental data for Al / V up to 15, but the model fails under high diene concentration, where branching reactions, neglected by reason of simplification, become significant. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 1173–1189, 1998