Dynamics of Polymers Adsorbed on a Surface. a Deuterium NMR View


The study of polymers at solid interfaces in terms of their dynamics and microstructure is of importance in many commercial applications such as coatings, adhesives and composites. The mutual interaction of the polymer with the fiber or filler in composites largely determine the mechanical properties of the composite. In the present study, the authors report a novel approach for studying the molecular motion of two different triblock terpolymers, namely poly(vinylpyridine-styrene-deuterostyrene) (PVPSDS) and poly(vinylpyridine-deuterostyrene-styrene) (PVPDSS) bound to silica surfaces. The two polymers differ in the positions of the label (deuteron). Adsorption of these polymers on solid surfaces like silica suggest that only the vinylpyridine part of the polymer attaches itself to the surface while styrene remains unadsorbed. Deuterium NMR was used to probe the dynamics of these adsorbed polymers as a function of distance from the surface. This type of polymer has been studied by Hadziiaonnou et al who report that on mica this polymer had a very extended conformation in toluene.



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Article - Conference proceedings

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© 1988 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Jan 1988

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