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|Title:||Morphology of adsorbed polymers and solid surface wettability|
Bremmell, Kristen Elizabeth
|Citation:||Langmuir, 2005; 21 (10):4695-4704|
|Publisher:||American Chemical Society|
|School/Discipline:||School of Chemical Engineering|
|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|
|Appears in Collections:||Chemical Engineering publications|
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