ガラス状態とガラス転移―その解明と応用への新展開 II ビベンジル,スチルベン,およびトラン構造を含む芳香族ポリアミドの熱的性質

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タイトル別名
  • Glassy State and Glass Transition-Its Elucidation and New Applications. II. Thermal Properties of Aromatic Polyamides Containing Bibenzyl, Stilbene, and Tolan Structures.
  • ビベンジル スチルベン オヨビ トラン コウゾウ オ フクム ホウコウゾク ポ

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The relationship between the thermal properties and molecular structures of aromatic polyamides was investigated with the polyisophthalamides and polyterephthalamides containing 3, 4′- (or 4, 4′-) bibenzyl, trans-stilbene, and tolan structures in the diamine components by differential scanning calorimetry. Amorphous 3, 4′-series polyisophthalamides displayed prominent glass transition temperatures (Tg) between 203°C and 272°C. Poly (3, 4′-bibenzylterephthalamide) had Tg and crystallization temperature (Tc) at 203°C and 235°C, respectively. On the other hand, highly crystalline 4, 4′-series polyterephthalamides had melting temperatures above 500°C but no Tg and Tc. All polyamides containing the tolan structure showed a large broad exothermic peak from about 300°C and changed to crosslinked polymers insoluble in organic solvents.

収録刊行物

  • 高分子論文集

    高分子論文集 53 (12), 869-873, 1996

    公益社団法人 高分子学会

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