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Development of epoxy‐cyanate ester‐clay nanocomposites offering enhanced thermally stability
Author(s) -
Venkatesh M.,
Gouthaman S.,
Kanemoto S. O.,
Lakshmi M. S.,
Hamerton I.
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.47754
Subject(s) - cyanate ester , thermal stability , diglycidyl ether , epoxy , materials science , nanocomposite , bisphenol a , cyanate , monomer , copolymer , composite material , izod impact strength test , char , montmorillonite , polymer chemistry , chemical engineering , polymer , ultimate tensile strength , pyrolysis , engineering
The preparation and characterization of blends of a series of dicyanate monomers such as 2,2′‐ bis (4‐cyanatophenyl) propane (DCDPP), bis ‐4‐cyanato‐biphenyl (DCBP), bis ‐4‐cyanatonaphthalene (DCN), 3,3′‐ bis (4‐cyanatophenyl)sulphide (DCTDP), 3,3′‐ bis (4‐cyanatophenyl)sulphone (DCDPS), and the diglycidyl ether of bisphenol A are reported. These copolymers are combined with a montmorillionite nanoclay and both epoxy‐cyanate blends and epoxy‐cyanate blends‐nanoclay composites are all analyzed for thermal stability, thermal degradation kinetics, flame retardancy, and impact strength. The nanocomposites are further characterized by X‐ray diffraction and SEM to determine morphological features, from which structure–property relationships are determined. Dispersion of the nanoclay is of paramount importance, but its inclusion serves to improve char yield and impact strength, when this is achieved. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47754.