Domain swelling in micellar composites of poly(styrene-block-oxyethylene) in poly(styrene)

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Title: Domain swelling in micellar composites of poly(styrene-block-oxyethylene) in poly(styrene)
Author: Smith, Thomas; Luca, David; Abkowitz, Martin; Conway, Greg; Van Laeken, A.; Wnek, Gary; Serpico, Joseph; Whitmore, M.
Abstract: The Whitmore/Noolandi theory of micelle formation in binary block copolymer--homopolymer blends has been expanded to predict micelle characteristics and swelling limits in dilute ternary blends of A-B diblock polymers swollen with low molecular weight homopolymer B in a matrix of homopolymer A. Transmission electron micrographs of binary composites of PS and PS-b-POE and ternary composites of PS, PS-b-POE and POE support theoretical predictions of micelle size and the volume of low molecular weight POE which can be incorporated in PS-b-POE micelles. The dielectric loss spectra of binary PS/PS-b-POE composites differ significantly from those exhibited by ternary PS/PS-b-POE/POE composites. This difference in relaxation characteristics of micellar-b-POE and POE may reflect a tendency of the homopolymer to accumulate at the center of the micelle core.
Record URI: http://hdl.handle.net/1850/2354
Date: 1992-04

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