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Morphology and mechanical behavior of poly(vinyl chloride)/poly(butadiene– co –acrylonitrile) latex interpenetrating polymer networks
Author(s) -
Sionakidis J.,
Sperling L. H.,
Thomas D. A.
Publication year - 1979
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.1979.070240504
Subject(s) - acrylonitrile , materials science , vinyl chloride , polymer chemistry , interpenetrating polymer network , polymer , polymerization , dynamic mechanical analysis , casting , composite material , copolymer , chemical engineering , engineering
A series of poly(vinyl chloride)/poly(butadiene– co –acrylonitrile) interpenetrating polymer networks (IPNs), all having 50/(25–25) weight compositions, was synthesized in latex form. The latex particles were studied after each step of the two‐staged polymerization and after molding or casting. Transmission electron microscopy together with dynamic mechanical spectroscopy suggest a graded composition within the latexes, in which the poly(vinyl chloride) seed latex network I forms a core that is partially penetrated by the poly(butadiene– co –acrylonitrile) network II, yielding increased amounts of poly(butadiene– co –acrylonitrile) in the shell of the latex particles.