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Continuous blending models for free radical polymerization systems
Author(s) -
Kwon Young D.,
Evans Lawrence B.
Publication year - 1973
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450510112
Subject(s) - polymer , molar mass distribution , polymerization , materials science , radical polymerization , diffusion , continuous reactor , chemical engineering , polymer chemistry , thermodynamics , chemistry , composite material , organic chemistry , physics , catalysis , engineering
The dynamics of change of molecular weight distribution in free radical polymerization systems was modelled using a continuous blending concept which recognizes that the changes of molecular weight distribution are caused by continuous blending of increments of new polymer formed by the reaction into the already existing polymer, continuous blending of polymer at various parts of reactor by diffusion and convection, and continuous blending of polymer from various parts of reactor into the final product. The models have been applied to the analysis of both lumped and distributed‐parameter systems using either empirical or mechanistic relations for molecular weight of new polymer.