Multinuclear n.m.r. studies on sol-gel transition of κ-carrageenan. Selective interaction of group I cations

Masayuki Tokita; Mitsuhiko Ikura; Kunio Hikichi

doi:10.1016/0032-3861(89)90157-2

Multinuclear n.m.r. studies on sol-gel transition of κ-carrageenan. Selective interaction of group I cations

Masayuki Tokita, Mitsuhiko Ikura, Kunio Hikichi

Condensed Matter Physics

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11 Citations (Scopus)

Abstract

Multinuclear n.m.r. experiments were carried out to study a selective interaction between group I cations and κ-carrageenan. It was found that the n.m.r. intensity of gel-forming cations undergoes a rapid change in the vicinity of sol-gel transition temperature. On the other hand, the n.m.r. intensity of a non-gel forming cation which coexists with a gel-forming cation does not show any singular behaviour at the sol-gel transition. These results strongly suggest that gel-forming cations selectively interact with κ-carrageenan.

Original language	English
Pages (from-to)	693-697
Number of pages	5
Journal	polymer
Volume	30
Issue number	4
DOIs	https://doi.org/10.1016/0032-3861(89)90157-2
Publication status	Published - Apr 1989

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All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

Cite this

Tokita, M., Ikura, M., & Hikichi, K. (1989). Multinuclear n.m.r. studies on sol-gel transition of κ-carrageenan. Selective interaction of group I cations. polymer, 30(4), 693-697. https://doi.org/10.1016/0032-3861(89)90157-2

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AB - Multinuclear n.m.r. experiments were carried out to study a selective interaction between group I cations and κ-carrageenan. It was found that the n.m.r. intensity of gel-forming cations undergoes a rapid change in the vicinity of sol-gel transition temperature. On the other hand, the n.m.r. intensity of a non-gel forming cation which coexists with a gel-forming cation does not show any singular behaviour at the sol-gel transition. These results strongly suggest that gel-forming cations selectively interact with κ-carrageenan.

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10.1016/0032-3861(89)90157-2