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Origins of Elastic Properties in Ordered Block Copolymer/Nanoparticle Composites

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NanoLett2004.pdf (129.85 KB)

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

LC Subject Headings

Citation

URI

https://doi.org/10.1021/nl048407f
 http://hdl.handle.net/10012/17711

Collections

Waterloo Research
Physics and Astronomy
Waterloo Institute for Nanotechnology