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Fabrication of Crosslinked Block Copolymer Nanoparticles Using Cold Vulcanization

Published online by Cambridge University Press:  15 March 2011

Sungwon Ma  and
Yonathan Thio
Sungwon Ma
Affiliation:
School of Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 801 Ferst Dr. NW, MRDC 1, Atlanta, GA 30332-0295, USA
Yonathan Thio
Affiliation:
School of Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 801 Ferst Dr. NW, MRDC 1, Atlanta, GA 30332-0295, USA
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Abstract

The aim of this study is to understand the crosslinked system of poly(styrene)-bpoly(isoprene) copolymer using cold vulcanization process as a facile method to produce anisometric nanoparticles. The morphologies of block copolymers could be controlled by the type of monomers, block junction, composition, and block size. A systematic methodology, utilizing cylindrical and lamellar morphologies of PS-b-PI copolymer, was used for producing fiber and sheet shaped nanoparticles. The cold vulcanization process was accomplished using sulfur monochloride (S2Cl2) as crosslinking agent. The microstructures and crosslinking density of crosslinked PS-b-PI copolymers were imaged and characterized. This study demonstrated the crosslinking of microphase separated block copolymer as a method to create particles with controlled size, shape, and physical properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1135: Symposium CC – Design, Fabrication and Self Assembly of “Patchy” and Anisometric Particles , 2008 , 1135-CC03-12
Copyright
Copyright © Materials Research Society 2009

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