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Synthesis of poly(tetrafluoroethylene)/poly(butadiene) core‐shell particles and their graft copolymerization
Author(s) -
Okaniwa Motoki
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(19980411)68:2<185::aid-app2>3.0.co;2-m
Subject(s) - tetrafluoroethylene , copolymer , acrylonitrile , materials science , polymer chemistry , emulsion polymerization , styrene , shell (structure) , core (optical fiber) , emulsion , composite material , chemical engineering , polymer , engineering
This article describes how to convert the unreactive surface of poly(tetrafluoroethylene) (PTFE) into poly(styrene‐ co ‐acrylonitrile) (SAN). Composite particles with a crosslinked poly(butadiene) (PB) shell covered over a PTFE core were prepared by an emulsifier‐free seeded emulsion polymerization of butadiene in the presence of PTFE latex. It was found that the increase in the PB crosslink density resulted in depressing the formation of PB secondary particles. Then, styrene and acrylonitrile were able to graft onto PB shell in high efficiency of 70%. SAN‐modified PTFE/PB core‐shell particles could eventually be dispersed homogeneously in a SAN matrix. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68:185–190, 1998