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Gelation properties and supramolecular organization trought 1H NMR spectroscopy (CROSBI ID 490479)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Wolsperger, Kristina ; Vikić-Topić, Dražen ; Makarević, Janja ; Frkanec, Leo ; Jokić, Milan ; Žinić, Mladen Gelation properties and supramolecular organization trought 1H NMR spectroscopy // Program & Book of Abstracts, The Fourth Dubrovnik NMR Course & Conference / Vikić-Topić, Dražen (ur.). Zagreb: Institut Ruđer Bošković, 2003. str. 43-x

Podaci o odgovornosti

Wolsperger, Kristina ; Vikić-Topić, Dražen ; Makarević, Janja ; Frkanec, Leo ; Jokić, Milan ; Žinić, Mladen

engleski

Gelation properties and supramolecular organization trought 1H NMR spectroscopy

The gelation phenomena exhibited by low molecular weight organic compounds have recently attained increasing attention. Gelator molecules self-assemble into elongated aggregates through highly specific inter-molecular interactions.When these structures are sufficiently long and entangled they may entrap solvent molecules in a network, which leads to the formation of gels. In H-1 NMR spectra of gels only the molecules dissolved in the entrapped solvent could be observed. By using an internal standard, the concentration of dissolved gelator molecules could be determined. This enabled determination of the K(gel) values. From the plots of lnK(gek) vs 1/T, the delta H(gel) of gels have been determined. We shall discuss a photoinduced gelation system based on the maleic acid amide to fumaric acid amide photoisomerization monitored by H-1 NMR spectroscopy

photoinduced gelation; maleic acid amide to fumaric acid amide isomerization; NMR spectroscopy; free gelator molecules; supramolecular organization

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Podaci o prilogu

43-x.

2003.

objavljeno

Podaci o matičnoj publikaciji

Program & Book of Abstracts, The Fourth Dubrovnik NMR Course & Conference

Vikić-Topić, Dražen

Zagreb: Institut Ruđer Bošković

Podaci o skupu

The Fourth International Dubrovnik NMR Course and Conference, DU NMR 2003

poster

28.06.2003-01.07.2003

Dubrovnik, Hrvatska

Povezanost rada

Kemija, Biologija