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Investigation of the curing mechanism and properties of bismaleimide‐triazine resins containing phenolphthalein and cyano group
Author(s) -
Wang Yuanying,
Liu Siyang,
Chen Ping,
Zhu Xiaoyu,
Xia Lianlian
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.47420
Subject(s) - curing (chemistry) , phenolphthalein , bisphenol a , materials science , triazine , glass transition , flexural strength , thermosetting polymer , benzonitrile , composite material , izod impact strength test , polymer chemistry , propane , chemistry , organic chemistry , polymer , ultimate tensile strength , epoxy
A series of bismaleimide‐triazine (BT) resins with and without O, O′‐diallyl bisphenol A (DABPA) were produced by mixing 2, 2‐bis (4‐cyanatophenyl) propane (BADCy) and MCBMI (2,6‐bis(4‐(1‐(4‐(4‐(2,5‐dioxo‐2,5‐dihydro‐1H‐pyrrol‐1‐yl)phenoxy)‐3‐methylphenyl)‐3‐oxo‐1,3‐dihydroisobenzofuran‐1‐yl)‐2‐methylphenoxy)benzonitrile). The resins show just one glass‐transition temperature ( T g ) and enhanced flexural properties as well as superior fracture toughness compared with commercial BDM/BADCy system, in which BDM is (N,N′‐bismaleimido‐4,4′‐diphenylmethane). Introduction of DABPA can decrease the curing temperature of bismaleimide‐triazine (BT) resins but increase its impact strength. When the mole of DABPA reach up to 1.2, the impact strength was increased by 1.34 times in comparison with BDM/ BADCy system. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 136 , 47420.