<b>Adhesive Property Evaluation of Castor-Oil-Based Alkoxysilyl-Terminated </b><b>Crosslinkable Prepolymers with (Thio)Urethane Structures </b>

DOI
  • INUI Jun
    R&D Div. Research Laboratory, Konishi Co., Ltd. Molecular Engineering Institute, Kinki University,
  • MATSUMOTO Kozo
    Department of Biological and Environmental Chemistry, Kinki University,
  • ENDO Takeshi
    Molecular Engineering Institute, Kinki University,

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Other Title
  • <b>（チオ）ウレタン構造をもつヒマシ油を基盤とするアルコキシシリル基による架橋系ポリマーの接着性評価 </b>

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Description

We synthesized various cross-linkable prepolymers from castor oil, isocyanates and alkoxysilanes, and evaluated their adhesive property. Influence of the alkoxysilyl group (methoxy or ethoxy) on the adhesion strength was small. On the other hand, adhesion strength of cross-linkable prepolymers synthesized from urethane prepolymer was stronger than those synthesized from isocyanate-silane. It was suggested that the amount of polar groups (urethane group) per castor oil unit had strong influence on the adhesion. Moreover, as compared cross-linkable prepolymers synthesized by usual urethane prepolymer method with those synthesized by via thin film evaporation method, adhesion intensity of cross-linkable prepolymer synthesized by via thin film evaporation method of urethane prepolymer exhibited much higher adhesion strength. Thus, it was suggested that adhesion strength of the prepolymer which had regular distances between cross-linking points was stronger than those with irregular distances.

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Details 詳細情報について

  • CRID
    1390282680436434048
  • NII Article ID
    130004692186
  • DOI
    10.11364/networkpolymer.35.154
  • ISSN
    2186537X
    13420577
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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