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Titolo:
POLY(ETHYLENE OXIDE) ADSORPTION ONTO CHEMICALLY ETCHED SILICATES BY BREWSTER-ANGLE REFLECTIVITY
Autore:
FU ZG; SANTORE MM;
Indirizzi:
LEHIGH UNIV,DEPT CHEM ENGN,POLYMER INTERFACE CTR,111 RES DR BETHLEHEMPA 18015 LEHIGH UNIV,DEPT CHEM ENGN,POLYMER INTERFACE CTR BETHLEHEM PA 18015
Titolo Testata:
Colloids and surfaces. A, Physicochemical and engineering aspects
fascicolo: 1-3, volume: 135, anno: 1998,
pagine: 63 - 75
SICI:
0927-7757(1998)135:1-3<63:POAOCE>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOCK-COPOLYMER ADSORPTION; AIR-WATER-INTERFACE; POLYMER ADSORPTION; EXCHANGE KINETICS; PROTEIN ADSORPTION; ADSORBED POLYMER; LIGHT-SCATTERING; GLASS SURFACES; LAYERS; REFLECTOMETRY;
Keywords:
ADSORPTION ISOTHERM; BREWSTER ANGLE REFLECTIVITY; DIFFUSION; GLASS SURFACE LAYER; MASS-TRANSPORT CONTROLLED KINETICS; SODA-LIME GLASS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
54
Recensione:
Indirizzi per estratti:
Citazione:
Z.G. Fu e M.M. Santore, "POLY(ETHYLENE OXIDE) ADSORPTION ONTO CHEMICALLY ETCHED SILICATES BY BREWSTER-ANGLE REFLECTIVITY", Colloids and surfaces. A, Physicochemical and engineering aspects, 135(1-3), 1998, pp. 63-75

Abstract

A new approach to near-Brewster optical reflectivity measurements is described, implementing internal reflection optics and scanning angle capabilities. The method is then employed to characterize chemically etched layers on soda-lime glass, and study poly(ethylene oxide) (PEO) adsorption from aqueous solution on the silica surface of soda-lime glass. Adsorption isotherms for several narrow molecular weight PEO samples demonstrate that the plateau of the isotherm extends to dilute concentrations, at least as low as 0.01 ppm. Adsorption kinetic measurements revealed transport-limited behavior and facilitated a determination of the free solution diffusion coefficient of PEG. Diffusivity results were in excellent agreement with the literature. (C) 1998 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 17/01/21 alle ore 17:41:21