Self-assembled structures from an amphiphilic multiblock copolymer containing rigid semiconductor segments

Sommerdijk, N.A.J.M. and Holder, S.J. and Hiorns, R.C. and Jones, R.G. and Nolte, R.J.M. (2000) Self-assembled structures from an amphiphilic multiblock copolymer containing rigid semiconductor segments. Macromolecules, 33 (22). pp. 8289-8294. ISSN 0024-9297. (Full text available)

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http://dx.doi.org/10.1021/ma0011385

Abstract

An amphiphilic multiblock copolymer comprising nearly monodisperse poly(ethylene oxide) segments (M-w/M-n = 1.03) and polydisperse poly(methylphenylsilane) (PMPS) segments (M-w/M-n = 2.0) forms a variety of well-defined morphologies such as vesicles, micellar rods, and helices upon aggregation in water-based solvent systems, despite this polydisperse character. Since polysilanes show sigma -conjugation in the main chain, the optical and electronic properties of the described block copolymer depend on its confomational behavior. It is demonstrated by microscopic and spectroscopic techniques that the conformations of the PMPS backbone can be controlled through manipulation of the aggregation behavior, i.e., by the choice of the solvent composition.

Item Type: Article
Additional information: 83 AMER CHEMICAL SOC
Uncontrolled keywords: COIL BLOCK-COPOLYMERS; SUPRAMOLECULAR POLYMERIC MATERIALS; DIBLOCK COPOLYMERS; MULTIPLE MORPHOLOGIES; HELICAL CONFORMATION; TRIBLOCK COPOLYMER; FORCE MICROSCOPY; SHAPED MOLECULES; LENGTH SCALES; CHAIN-LENGTH
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Simon Holder
Date Deposited: 26 May 2009 19:19
Last Modified: 25 Jun 2012 10:30
Resource URI: http://kar.kent.ac.uk/id/eprint/2568 (The current URI for this page, for reference purposes)
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