ヘテロ網目高分子　Ｘ　　ジオキサン‐水混合溶媒から調製したポリ（Ｌ‐グルタミン酸）およびその橋かけ物の分子鎖凝集構造

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タイトル別名
  • Aggregation State of Molecular Chains in Solid Films of Poly (<SUB>L</SUB>-glutamic acid) and Its Crosslinked Products Cast from Dioxane-Water Mixture
  • ジオキサン ミズ コンゴウ ヨウバイ カラ チョウセイシタ ポリ L グルタミ

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Heterogeneous network polymers were prepared from poly (L-glutamic acid) (PGA) and poly- (oxyethylene glycol) (PEG, Mn=300) using dioxane-water mixture (D-W, 3: 1 v/v) as a solvent. The PGA content was varied from 100 to 40 wt%. As the PGA content increases, (1) the inter-helical distance widens in accordance with the Robinson's equation; (2) the cholesteric pitch increases and the angle of twist per layer in the cholesteric structure decreases; and (3) the peak temperature of tan δ shifts to a lower side. These results are consistent with the supposition that the hexagonally packed α-helices of PGA constitute the cholesteric liquid crystal structure and that the PEG chains are accommodated within the interstices of α-helices.

収録刊行物

  • 高分子論文集

    高分子論文集 36 (3), 189-192, 1979

    公益社団法人 高分子学会

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