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

Sommerdijk, Nico A. J. M., Holder, Simon J., Hiorns, Roger C., Jones, Richard G., Nolte, Roeland J.M. (2000) Self-assembled structures from an amphiphilic multiblock copolymer containing rigid semiconductor segments. Macromolecules, 33 (22). pp. 8289-8294. ISSN 0024-9297. (doi:10.1021/ma0011385) (KAR id:2568)

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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
DOI/Identification number: 10.1021/ma0011385
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: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Simon Holder
Date Deposited: 26 May 2009 19:19 UTC
Last Modified: 16 Nov 2021 09:41 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/2568 (The current URI for this page, for reference purposes)
Holder, Simon J.: https://orcid.org/0000-0001-8977-9257
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