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Type: Journal article
Title: Morphology of adsorbed polymers and solid surface wettability
Author: Kaggwa, Gillian
Froebe, Stefanie
Huynh, Le
Ralston, John
Bremmell, Kristen Elizabeth
Citation: Langmuir, 2005; 21 (10):4695-4704
Publisher: American Chemical Society
Issue Date: 2005
ISSN: 0743-7463
School/Discipline: School of Chemical Engineering
Statement of
Gillian B. Kaggwa, Stefanie Froebe, Le Huynh, John Ralston, and Kristen Bremmell
Abstract: The adsorption of a polyacrylamide (MW 14600) and two polysaccharides (MW 9260 and 706 × 103) onto model silica surfaces of different hydrophobicities was investigated. In all cases, adsorption adhered to the Freundlich isotherm, reflecting the heterogeneous character of the solid substrates. The latter strongly influenced the character of the adsorbed polymer, with morphologies from chainlike structures to thin films and patches being observed. Surface roughness, polymer type, and molecular weight also play roles in controlling adsorbed polymer morphology. Surface wettability is strongly influenced by the thickness of the adsorbed layer.
Description: Copyright © 2005 American Chemical Society
RMID: 0020064211
DOI: 10.1021/la047352u
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Appears in Collections:Chemical Engineering publications

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