コラーゲンならびにキトサンとポリビニルアルコールとのブレンド膜の熱的性質と膨潤力学挙動　　グルタルアルデヒド架橋の効果

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書誌事項

タイトル別名
  • Thermal and Mechanical Properties of Collagen/Poly (vinyl alcohol) and Chitosan/Poly (vinyl alcohol) Blends: Effect of Crosslinking with Glutaraldehyde.
  • コラーゲン ナラビニ キトサン ト ポリビニルアルコール ト ノ ブレンド マク ノ ネツテキ セイシツ ト ボウジュンリキガク キョドウ グルタルアルデヒド カキョウ ノ コウカ
公開日
1999
DOI
  • 10.2115/fiber.55.6_254
公開者
社団法人 繊維学会

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説明

Collagen/poly (vinyl alcohol) (PVA) and chitosan/PVA blends were cast into films from mixed polymer solutions in aqueous acetic acid. Transition behavior of two series of binary blends was examined by DSC measurements. Composition-dependent shift in the glass transition temperature (Tg) of PVA was observed for chitosan/PVA blends and the melting point of PVA was depressed systematically with increasing chitosan content. On the other hand, the less significant shift in Tg of PVA was observed for collagen/PVA blends. These results suggest that the chitosan is compatible with PVA, while collagen is incompatible with PVA. An attempt was made to introduce crosslinks into both series of blends with the aid of glutaraldehyde. Enhancement of the compatibility was achieved for collagen/PVA blends and the mixing state was improved by the introduction of the crosslinking in consequence of the bridge formation between PVA and collagen molecules. On the other hand, chitosan/PVA blends lost their high compatibility due to the preferential crosslinking among chitosan chains. Elongation/contraction behavior of the crosslinked collagen/PVA blends during the alternate immersion in water and concentrated LiCl solution was examined. Further, the moduli of crosslinked collagen/PVA and chitosan/PVA blend hydrogels were also discussed in terms of the degree of crosslinking and the higher order structure of collagen in the hydrogel.

収録刊行物

  • 繊維学会誌

    繊維学会誌 55 (6), 254-260, 1999

    社団法人 繊維学会

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