Cation effect on gel-sol transition of kappa carrageenan
Yükleniyor...
Dosyalar
Tarih
2008-04
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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
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
