Cation effect on gel-sol transition of kappa carrageenan

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Küçük Resim

Tarih

2008-04

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Springer

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

The steady state fluorescence (SSF) technique was employed to study gel - sol transitions of kappa carrageenan in NaCl, KCl and CaCl2 solutions. Pyranine was used as a fluorescence probe for monitoring these transitions. Scattered light, I-sc and fluorescence intensity, I was monitored against temperature to determine the gel - sol (T-gs) transition temperatures and exponents. It was observed that T-gs values are strongly correlated to the NaCl, KCl and CaCl2 contents. The weight average degree of polymerization, DPw and gel fraction G, exponents (gamma and beta) were measured and found to be in accord with the classical Flory-Stockmayer Model.

Açıklama

Anahtar Kelimeler

Differential scanning calorimetry, Molecular-size distribution, Alkali-metal ions, Methyl-methacrylate, Fluorescence, Behavior, Gelation, Polymerization, Conformation, Potassium, Carboxylic acids, Phase transitions, Superconducting transition temperature, Degree of polymerization, Flory-Stockmayer Model, Fluorescence intensity, Gel fraction, Steady state fluorescence (SSF), Polysaccharides

Kaynak

Polymer Bulletin

WoS Q Değeri

Q2
Q2

Scopus Q Değeri

Q2

Cilt

60

Sayı

4

Künye

Pekcan, M. Ö. & Tarı İlgin, Ö. (2008). Cation effect on gel – sol transition of kappa carrageenan. Polymer Bulletin, 60(4), 569-579. doi:10.1007/s00289-007-0874-6