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

Research output: Contribution to journal › Article › peer-review

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

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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

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.",

author = "Masayuki Tokita and Mitsuhiko Ikura and Kunio Hikichi",

note = "Funding Information: A part of this work was supported by Grant-in-Aids from the Ministry of Education, Science and Culture of Japan (Grant No. 61430021, 62740205, 63750843). The authors are very grateful to the Foundation of Toray Science and Technology.",

year = "1989",

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doi = "10.1016/0032-3861(89)90157-2",

language = "English",

volume = "30",

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T1 - Multinuclear n.m.r. studies on sol-gel transition of κ-carrageenan. Selective interaction of group I cations

AU - Tokita, Masayuki

AU - Ikura, Mitsuhiko

AU - Hikichi, Kunio

N1 - Funding Information: A part of this work was supported by Grant-in-Aids from the Ministry of Education, Science and Culture of Japan (Grant No. 61430021, 62740205, 63750843). The authors are very grateful to the Foundation of Toray Science and Technology.

PY - 1989/4

Y1 - 1989/4

N2 - 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.

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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ER -

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

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