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Titolo:
Sugar-integrated gelators of organic solvents
Autore:
Gronwald, O; Shinkai, S;
Indirizzi:
Japan Sci & Technol Corp, Chemotransfigurat Project, Kurume, Fukuoka 8090861, Japan Japan Sci & Technol Corp Kurume Fukuoka Japan 8090861 uoka 8090861, Japan Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Higashi Ku, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 em, Higashi Ku, Fukuoka 8128581, Japan
Titolo Testata:
CHEMISTRY-A EUROPEAN JOURNAL
fascicolo: 20, volume: 7, anno: 2001,
pagine: 4328 - 4334
SICI:
0947-6539(20011015)7:20<4328:SGOOS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
GELATION ABILITY; GLYCOSYLIDENE CARBENES; PHASE-TRANSITION; GEL; ORGANOGELS; LIQUIDS; CHEMISTRY; DESIGN; AGGREGATION; DERIVATIVES;
Keywords:
carbohydrates; hydrogen bonds; sol-gel processes; X-ray diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
54
Recensione:
Indirizzi per estratti:
Indirizzo: Shinkai, S Japan Sci & Technol Corp, Chemotransfigurat Project, 2432 Aikawa, Kurume, Fukuoka 8090861, Japan Japan Sci & Technol Corp 2432 Aikawa Kurume Fukuoka Japan 8090861
Citazione:
O. Gronwald e S. Shinkai, "Sugar-integrated gelators of organic solvents", CHEM-EUR J, 7(20), 2001, pp. 4328-4334

Abstract

Some methyl 4,6-O-benzylidene monosaccharides can act as strong low molecular weight gelators for various organic solvents. As they are accessible ina variety of homologues, each with a unique molecular architecture, they can be used for systematic studies of gelation phenomena. Structural detailsof their hydrogen-bond-based fiber network in the gel phase can be resolved by small angle X-ray scattering (SAXS). Analysis of the molecular arrangement in a single crystal can be a valuable tool for the prediction of gelation ability presupposing that the elongated shape of the gel fibers arises from an anisotropic assembly of the gelator molecules into one-dimensional aggregates. It is found that some derivatives act as "supergelators", whichcan gelate hydrocarbon solvents with 0.03-0.05 wt %. The recent results emerging from these investigations will be outlined in this article.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 21:20:24