書誌事項
- タイトル別名
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- 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
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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
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- 高分子論文集
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高分子論文集 36 (3), 183-187, 1979
公益社団法人 高分子学会
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詳細情報 詳細情報について
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- CRID
- 1390001206523261952
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- NII論文ID
- 130004033818
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- NII書誌ID
- AN00085011
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- ISSN
- 18815685
- 03862186
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- NDL書誌ID
- 2047576
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可