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Compatibilization of acrylic polymer–silk fibroin blend fibers. I. Graft copolymerzation of acrylonitrile onto silk fibroin
Author(s) -
Sun Yuyu,
Shao Zhengzhong,
Zhou Jie,
Yu Tongyin
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(19980808)69:6<1089::aid-app5>3.0.co;2-c
Subject(s) - fibroin , polyacrylonitrile , acrylonitrile , polymer chemistry , copolymer , materials science , compatibilization , ammonium persulfate , silk , chemical engineering , polymer , polymer blend , composite material , polymerization , engineering
To synthesize effective compatibilizers for the compatibilization of acrylic polymer–silk fibroin blend fibers, the homogeneous graft copolymerization of acrylonitrile onto silk fibroin, initiated by potassium persulfate–sodium bisulfite redox system in 60 wt % ZnCl 2 aqueous solution was investigated. The percentage graft, percentage efficiency, and molecular weight of the grafted polyacrylonitrile increase with the increase of the concentration of initiator, the concentration of acrylonitrile, and the temperature to optimum values, respectively, and then decrease. With the increase of reaction time, the percentage graft and percentage efficiency increase, whereas the molecular weight of the grafted polyacrylonitrile decreases. The influence of the reactionconditions on the molecular architecture of the graft copolymers is also discussed. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 1089–1097, 1998