Origins of Elastic Properties in Ordered Block Copolymer/Nanoparticle Composites
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Date
2004
Authors
Thompson, Russell B.
Rasmussen, Kim O.
Lookman, Turab
Advisor
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
Abstract
We predict a diblock copolymer melt in the lamellar phase with added spherical nanoparticles that have an affinity for one block to have a lower tensile modulus than a pure diblock copolymer system. This weakening is due to the swelling of the lamellar domain by nanoparticles and the displacement of polymer by elastically inert fillers. Despite the overall decrease in the tensile modulus of a polydomain sample, the shear modulus for a single domain is unaffected by fillers.
Description
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by publisher. To access the final edited and published work see https://doi.org/10.1021/nl048407f
Keywords
block copolymers, nano composites, self-consistent field theory