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Study of crosslinking copolymerization and its fractal behavior of styrene‐divinylbenzene
Author(s) -
Zuo Ju,
Liang Dehai,
Ran Shaofeng,
Chen Tianhong,
Niu Aizhen,
He Binglin
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(19980418)68:3<363::aid-app3>3.0.co;2-h
Subject(s) - copolymer , divinylbenzene , materials science , branching (polymer chemistry) , dispersity , styrene , polymer chemistry , polymer , chemical engineering , composite material , engineering
The crosslinking copolymerization of styrene‐divinylbenzene (DVB) with 6% (w/w) DVB was investigated quantitatively by liquid chromatography (LC), viscosity, GPC, and static and dynamic laser light. Through these experiments, reaction order, mechanism, and evolution of molecular weight, size, polydispersity, and branching of the copolymer chains during the gelation were measured. The critical exponents γ, β, δ, τ, and ν p of the gelation were calculated. Furthermore, fractal behavior of the copolymer was evidenced firmly; the progression of fractal dimensions of these species following the gelation were also obtained using the dependence of intensity scattered on angles by synchrotron small angle X‐ray scattering. A methodology for characterization of gelation forming network polymer is provided objectively. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68:363–371, 1998