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Pregled bibliografske jedinice broj: 117507

Zbornik radova

Autori: Wolsperger, Kristina; Vikić-Topić, Dražen; Makarević, Janja; Frkanec, Leo; Jokić, Milan; Žinić, Mladen
Naslov: Gelation properties and supramolecular organization trought 1H NMR spectroscopy
( Gelation properties and supramolecular organization trought 1H NMR spectroscopy )
Izvornik: Program & Book of Abstracts, The Fourth Dubrovnik NMR Course & Conference / Vikić-Topić, Dražen (ur.). - Zagreb : Institut Ruđer Bošković , 2003. 43.
Skup: The Fourth International Dubrovnik NMR Course and Conference, DU NMR 2003
Mjesto i datum: Dubrovnik, Hrvatska, 28.06.-01.07.2003.
Ključne riječi: photoinduced gelation; maleic acid amide to fumaric acid amide isomerization; NMR spectroscopy; free gelator molecules; supramolecular organization
( photoinduced gelation; maleic acid amide to fumaric acid amide isomerization; NMR spectroscopy; free gelator molecules; supramolecular organization )
Sažetak:
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
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Nema recenziju
Projekt / tema: 0098080, 0098059, 0098053
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Kemija,Biologija



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