We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

Surface adsorption of polar end-functionalised polystyrenes.

Narrainen, A. P. and Clarke, N. and Eggleston, S. M. and Hutchings, L. R. and Thompson, R. L. (2006) 'Surface adsorption of polar end-functionalised polystyrenes.', Soft matter., 2 (11). pp. 981-985.


Due to their inherently high surface energy, polar end-functionalised polymers do not normally adsorb to the external surfaces of blends. However, adsorption of polar functionalities can be induced rapidly by annealing in a polar environment such as glycerol prior to quenching to a glassy state. Blended films of carboxy end-functionalised deuteriopolystyrene (dPS-COOH) with hydrogenous polystyrene (hPS) were annealed at 150 °C under glycerol. Nuclear reaction analysis was used to quantify the surface excess of dPS-COOH retained at the surface after quenching the films to below the glass transition temperature. Incorporation of multiple COOH groups onto a single chain end greatly increases the affinity of these chains to the interface with glycerol. Here we have shown that even a difunctional material, dPS-2COOH, is much more surface active than either the singly functionalised dPS-COOH or the difunctional ester from which it was prepared. Self-consistent mean field theory yielded thermodynamic sticking energy values per functionality at the polystyrene–glycerol surface of 1.3–1.7 kBT for carboxy groups and 0.3 kBT for ester groups.

Item Type:Article
Full text:Full text not available from this repository.
Publisher Web site:
Date accepted:No date available
Date deposited:No date available
Date of first online publication:August 2006
Date first made open access:No date available

Save or Share this output

Look up in GoogleScholar