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A study of the thermal and dynamic mechanical properties of functionalized aryl cyanate esters and their polymers
Author(s) -
Barton John M.,
Hamerton Ian,
Jones John R.
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990310114
Subject(s) - cyanate ester , cyanate , thermogravimetric analysis , differential scanning calorimetry , maleimide , materials science , polymerization , monomer , polymer , polymer chemistry , dynamic mechanical analysis , copolymer , aryl , chemical engineering , chemistry , organic chemistry , composite material , thermodynamics , epoxy , physics , alkyl , engineering
Differential scanning calorimetry (DSC) was employed to examine the thermally initiated and catalysed polymerizations of a number of cyanate ester monomers. Rigorous purification by preparative HPLC was found to have marked effects on the thermal polymerization characteristics of these compounds as determined by DSC. The effects on the thermal behaviour of varying the heating rate and level of catalysis were also examined. The thermal polymerization of the cyanate ester monomers was found to obey a first order model over wide apparent conversion limits. Functionalized cyanate ester/bis‐maleimide copolymers were prepared and the thermal stabilities of these were evaluated by thermogravimetric analysis (TGA) alongside a variety of commercial blends and homopolymers. The dynamic mechanical properties of the cured neat resins were also investigated.