<b>Toughening of Cyanate Ester Resin by </b><i>in situ</i><b> Copolymerization of </b>

DOI 1 Citations
  • Kitamura Ai
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University
  • Sugi Yuki
  • Oyama Toshiyuki
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University
  • Takahashi Akio
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University

Bibliographic Information

Other Title
  • <b>In situ 重合架橋型N- フェニルマレイミド</b>－<b>スチレン </b><b>交互共重合体によるシアナート樹脂の強靭化 </b>

Abstract

SynopsisToughening of cyanate ester resin was carried out by simultaneous curing of cyanate ester resin with radical copolymerization of N-phenylmaleimide, styrene (St) and divinylbenzene (DVB). The influence of radical polymerization on curing behavior of cyanate resin matrix was also studied. The introduction of DVB as a crosslinking agent increased miscibility of the cyanate ester matrix with the modifier, and thereby the fracture toughness for the modified cyanate ester resin was increased by 77% with keeping good flexural properties and high glass transition temperature, compared to the unmodified resin, when 10wt% of N-phenylmaleimide/St (1/1, mol/mol) and DVB (5mol% of the modifier) were added.The observation of phase separation of the modified resins by AFM revealed that toughening was accomplished by the morphology with the modifier-rich phases of 200 to 300 nanometers dispersed in the cyanate ester-rich matrix. Then, from the results of DSC and IR measurements, we found that radical polymerization of PMSD modifier was finished before curing process of 150℃/1h and did not interfere with curing of the cyanate resin matrix each other.

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Details 詳細情報について

  • CRID
    1390001205461426048
  • NII Article ID
    130004648242
  • DOI
    10.11364/networkpolymer.31.299
  • COI
    1:CAS:528:DC%2BC3cXhsF2itbvL
  • ISSN
    2186537X
    13420577
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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