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Modeling of molecular weight distribution and microstructure of copolymers prepared in emulsion
Author(s) -
Storti Giuseppe,
Polotti Gianmarco,
Canu Paolo,
Carrá Sergio,
Morbidelli Massimo
Publication year - 1990
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19900350114
Subject(s) - molar mass distribution , copolymer , emulsion polymerization , emulsion , materials science , binary number , range (aeronautics) , distribution (mathematics) , thermodynamics , polymerization , statistical physics , particle size distribution , particle (ecology) , polymer chemistry , biological system , particle size , polymer , physics , chemistry , mathematics , organic chemistry , mathematical analysis , composite material , arithmetic , oceanography , geology , biology
A stochastic model for evaluating Molecular Weight Distribution (MWD) and Chain Composition Distribution (CCD) of copolymers prepared in emulsion is applied to a “zero‐one‐two” binary system, i.e. with no more than two active chains per particle. Model predictions are compared with those by widely applied literature models based on bulk polymerization equations for evaluating CCD and on simplifying approaches for MWD (Refs. 5 and 6). For the particular system under examination, the range of reliable applicability of these approximated models is limited to high molecular weights (average degrees of polymerization larger than about 500 units), while for shorter chains the model here reported has to be used.