<b>Synthesis and Properties of High Molecular Weight Cresol-novolac-resin </b>

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  • Katsuyuki Masuda
    Polymer Materials R&D Department, Hitachi Chemical Co., Ltd.
  • Eri Sakai
    Polymer Materials R&D Department, Hitachi Chemical Co., Ltd.
  • Shigel Haeno
    Polymer Materials R&D Department, Hitachi Chemical Co., Ltd.
  • Tomohiro Hirata
    Polymer Materials R&D Department, Hitachi Chemical Co., Ltd.

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Other Title
  • <b>高分子量クレゾールノボラック樹脂の合成と物性 </b>
  • 高分子量クレゾールノボラック樹脂の合成と物性
  • コウブンシリョウ クレゾールノボラック ジュシ ノ ゴウセイ ト ブッセイ

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<p>We investigated a high molecular weight cresol-novolac-resin with toughness. With a conventional synthetic method of the cresol-novolac-resin, we found that it was able to prepare the high molecular weight resin more than 100000, by examining the various combinations of formaldehyde, cross-linker and catalyst. This resin showed the good solubility ins an organic solvent, and the high tensile strength as a tough film property. Furthermore, the cured material with the epoxy resin showed a high coefficient of elasticity and proof stress.</p>

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