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Titolo:
Ice formation in amorphous cellulose
Autore:
Czihak, C; Muller, M; Schober, H; Vogl, G;
Indirizzi:
Univ Vienna, Inst Mat Phys, A-1090 Vienna, Austria Univ Vienna Vienna Austria A-1090 Inst Mat Phys, A-1090 Vienna, Austria Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France Inst Max Von Laue Paul Langevin Grenoble France 9 042 Grenoble 9, France Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany Hahn Meitner Inst Kernforsch Berlin GmbH Berlin Germany D-14109 Germany European Synchrotron Radiat Facil, F-38043 Grenoble, France European Synchrotron Radiat Facil Grenoble France F-38043 enoble, France
Titolo Testata:
PHYSICA B
, volume: 276, anno: 2000,
pagine: 286 - 287
SICI:
0921-4526(200003)276:<286:IFIAC>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER;
Keywords:
amorphous ice; cellulose; hydration water; water in confined media;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Czihak, C Univ Vienna, Inst Mat Phys, Strudlhofgasse 4, A-1090 Vienna, Austria Univ Vienna Strudlhofgasse 4 Vienna Austria A-1090 nna, Austria
Citazione:
C. Czihak et al., "Ice formation in amorphous cellulose", PHYSICA B, 276, 2000, pp. 286-287

Abstract

We investigate the formation of ice in wet amorphous cellulose in the temperature range of 190 K less than or equal to T less than or equal to 280 K. Due to voids and ports in the cellulose film, water molecules are able to form crystalline aggregates. Beyond that, water is able to penetrate between cellulose chains where it can adsorb to hydroxyl side groups. From diffraction data we suggest an aggregation of low-density amorphous (Ida) ice at cellulose surfaces. The formation of Ida ice shows a clear temperature dependence which will be discussed together with recent inelastic neutron scattering results. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:53:21