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Synthesis of cardanol‐based phthalonitrile monomer and its copolymerization with phenol–aniline‐based benzoxazine
Author(s) -
Chen YuPeng,
Dayo Abdul Qadeer,
Zhang HuiYan,
Wang Anran,
Wang Jun,
Liu Wenbin,
Yang Yan,
Qin QiRui,
Yang YuGang
Publication year - 2019
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.47505
Subject(s) - cardanol , phthalonitrile , copolymer , curing (chemistry) , polymer chemistry , monomer , materials science , polymerization , nucleophilic substitution , phenol , thermal stability , glass transition , polymer , chemistry , organic chemistry , composite material , epoxy , phthalocyanine
ABSTRACT The cardanol‐based phthalonitrile (PN) monomer was successfully produced via the nucleophilic substitution reaction of cardanol with 4‐nitrophthalonitrile in potassium carbonate media. The conventional methods were employed to predict the chemical structure. The influence of long alkyl chains of cardanol was observed on the thermomechanical properties, recorded values were much below than the poly(Baph) standards. However, the thermal stabilities were recorded in good agreement to PN resin values. Furthermore, the 100 kGy dose of Co 60 irradiation does not show any remarkable changes in the studied properties. The copolymers from P‐a benzoxazine and cardanol‐based PN (CPN) on the different wt % blending were prepared. The curing behavior and mechanism of the monomer blends were analyzed. The curing of CPN was improved in the presence of active hydrogen produced from the P‐a polymerization. The T g and thermal properties of the copolymer were much better than the neat poly(P‐a). © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47505.