Room-temperature, high-yield route to poly(n-alkylmethylsilane)s and poly(di-n-hexylsilane)

Holder, S.J. and Achilleos, M. and Jones, R.G. (2005) Room-temperature, high-yield route to poly(n-alkylmethylsilane)s and poly(di-n-hexylsilane). Macromolecules, 38 (5). pp. 1633-1639. ISSN 0024-9297. (Full text available)

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http://dx.doi.org/10.1021/ma048449q

Abstract

The synthesis of poly(n-hexylmethylsilane) in crude yields from 50 to 83% and poly(di-n-hexylsilane) in crude yields from 67 to 82%, was accomplished by performing Wurtz-type reductive-coupling polymerizations of the corresponding dicholorodiorganosilanes in THF at room temperature. After purification, both polymers were obtained in isolated yields of greater than 50%, which are the highest achieved for such polysilanes to date. The general applicability of the synthetic procedure was also demonstrated by syntheses of poly(methyl-n-octylsilane) and poly(methyl-n-propylsilane) in good yields. The results indicate that the reductive coupling of dichlorodiorganosilanes in THF at room temperature offers not only greatly improved polymer yields but also provides a general route to polydiorganosilanes that is a considerable improvement on Wurtz-type syntheses carried out in toluene at 110 degreesC.

Item Type: Article
Uncontrolled keywords: REDUCTIVE-COUPLING REACTION; POLYSILANE HIGH POLYMERS; THERMOCHROMISM; POLY(METHYLPHENYLSILYLENE); DICHLOROSILANES; POLYMERIZATION; POLYSILYLENES; DISTRIBUTIONS; MODEL
Subjects: Q Science
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: 08 Jun 2011 11:40
Last Modified: 09 Nov 2011 09:38
Resource URI: http://kar.kent.ac.uk/id/eprint/27881 (The current URI for this page, for reference purposes)

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