ヘテロ網目高分子　ＩＸ　　ポリ（Ｌ‐グルタミン酸）とポリ（オキシエチレングリコール）の濃厚溶液および固体膜の高次組織

DOI Web Site 被引用文献1件

書誌事項

タイトル別名
  • Textures in Concentrated Solutions of Poly (<SUB>L</SUB>-glutamic acid) and Poly (oxyethylene glycol) and in the Solid Films
  • ポリ L グルタミンサン ト ポリ オキシエチレン グリコール ノ ノウコウ

この論文をさがす

抄録

Concentrated solutions of poly (L-glutamic acid) (PGA) and poly (oxyethylene glycol) (PEG, Mn=300), and the solid films prepared by casting them were investigated by means of small-angle light scattering and polarizing microscopy. N, N-dimethylformamide (DMF) and dioxane-water mixtures (D-W, 3: 1 v/v) were used as solvents. In all the concentrated solutions, irrespective of the relative content of PGA and PEG, the cholesteric liquid crystal structure was observed both in DMF and in D-W. Concerning the solid films prepared by evaporating DMF, two different states of aggregation were recognized depending on the PGA content. The films with a PGA content of 100 or 90 wt% gave rise to the HV pattern typified by the 0-90° cross (+ type); their polarizing micrographs showed aggregates of rodlike texture. The HV patterns changed to the ±45° cross (×-type) with the films containing 80-40 wt% of PGA and the micrographs typical of cholesteric liquid crystal structure were obtained. All the films cast from D-W, on the other hand, showed ×-type HV patterns. Spherulitic cholesteric structure and/or the retardation lines were observed.

収録刊行物

  • 高分子論文集

    高分子論文集 36 (3), 183-187, 1979

    公益社団法人 高分子学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ