Positron annihilation lifetime studies of sol-gel transition of carrageenan gels

Y. Wakabayashi; K. Ito; H. Li; Y. Ujihira; H. Hashimoto; H. Matsui; A. Chiba; Y. Jean

doi:10.1007/bf02036263

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 211: Issue 1

Positron annihilation lifetime studies of sol-gel transition of carrageenan gels

Authors:

Y. Wakabayashi

Y. Wakabayashi The University of Tokyo Research Center for Advanced Science and Technology 4-6-1 Komaba, Meguro-ku 153 Tokyo (Japan)

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K. Ito

K. Ito The University of Tokyo Research Center for Advanced Science and Technology 4-6-1 Komaba, Meguro-ku 153 Tokyo (Japan)

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H. Li

H. Li The University of Tokyo Research Center for Advanced Science and Technology 4-6-1 Komaba, Meguro-ku 153 Tokyo (Japan)

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Y. Ujihira

Y. Ujihira The University of Tokyo Research Center for Advanced Science and Technology 4-6-1 Komaba, Meguro-ku 153 Tokyo (Japan)

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H. Hashimoto

H. Hashimoto Waseda University Department of Applied Physics 3-4-1, Okubo, Shinjyuku-ku 169 Tokyo (Japan)

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H. Matsui

H. Matsui Waseda University Department of Applied Physics 3-4-1, Okubo, Shinjyuku-ku 169 Tokyo (Japan)

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A. Chiba

A. Chiba Waseda University Department of Applied Physics 3-4-1, Okubo, Shinjyuku-ku 169 Tokyo (Japan)

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, and

Y. Jean

Y. Jean University of Missouri-Kansas City Department of Chemistry 64110 Kansas City Missouri (USA)

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Pages:: 119–126

Online Publication Date:: 13 Aug 2005

Publication Date:: 17 Nov 1996

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02036263

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Abstract

Positron annihilation lifetime measurement was applied to study the sol-gel transition of anionic polysaccharide aqueous solutions in terms of free-volume parameters the size, intensity, and size distribution of free volumes of the gelation of K-formk-carrageenan solutions as a function of temperature. Slight variations of free volume size and intensity against temperature were observed near 295 K. The correlation of free-volume data with other physical properties vibrational spectra (IR and Raman), conductivity, SAXS, elastic measurement, differential scanning calorimetry were investigated to understand the mechanism of sol-gel transition of carrageenan.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)