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Self‐crosslinking and cocrosslinking with nitrile rubber of poly(vinyl chloride) with pendent N , N ‐diethyldithiocarbamate group
Author(s) -
Guan Jianjun,
Gao Changyou,
Yang Wenjun,
Shen Jiacong
Publication year - 2001
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 - 10.1002/1097-4628(20010425)80:4<634::aid-app1139>3.0.co;2-3
Subject(s) - polyvinyl chloride , vinyl chloride , nitrile , natural rubber , polymer chemistry , materials science , ultimate tensile strength , glass transition , nitrile rubber , composite material , chemistry , polymer , organic chemistry , copolymer
In order to realize the self‐crosslinking and cocrosslinking of poly(vinyl chloride) (PVC) with nitrile‐butadiene rubber (NBR), PVC with pendent N , N ‐diethyldithiocarbamate groups (PVC‐SR) was prepared from the reaction of PVC with sodium SR in butanone. The PVC‐SR was self‐crosslinked and the PVC‐SR/NBR blend was cocrosslinked under heating at 170°C. The effect of the degree of functionality of PVC‐SR on the torque, gel content, glass‐transition temperature, and tensile properties was investigated. The results showed that the crosslinking reaction did not occur for PVC, NBR, or the PVC/NBR blend. Introducing the SR groups into PVC caused the crosslinking reaction to occur and the high gel contents of the crosslinked samples were obtained in 15 min. The degree of crosslinking increased with the degree of functionality of PVC‐SR. The mechanism of the crosslinking reaction was discussed. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 634–638, 2001