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Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
Published on: July 9, 2015
Hierarchical adsorption of network-forming associative polymers
1Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands. joris.sprakel@wur.nl
Abstract:
In this paper, we discuss the hierarchical adsorption of micelles formed from network-forming, telechelic, associative polymers at an air-water interface. We propose an interfacial mechanism that involves three distinct steps: (i) adsorption of the micellar coronas at the interface, (ii) unfolding of the micelles to anchor the hydrophobic tails at the interface, and (iii) formation of a secondary adsorption layer by bridging between the primary layer and micelles in the bulk. While the first, transport-limited process is relatively fast, the latter processes are surprisingly slow; it may take up to 10(6) s for the adsorption to complete.
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