Bratton, D. and Holder, S.J. and Jones, R.G. and Wong, W.K.C. (2003) The role of oligomers in the synthesis of polysilanes by the Wurtz reductive coupling reaction. Journal of Organometallic Chemistry, 685 (1-2). pp. 60-64. ISSN 0022-328X.
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Abstract
Size exclusion chromatography and Si-29-NMR spectroscopy have been used to investigate the evolution of low-molecular weight molecules during the synthesis of poly(methylphenylsilane) by alkali metal-mediated reductive coupling in diethyl ether, tetrahydrofuran and toluene, revealing clear evidence for the important role played by a dimer. In addition, the distinct origins of the stable cyclic oligomers that are ubiquitous side products of these reactions have been established, cyclopentamers being formed through endbiting during chain growth and cyclohexamers by a degradative backbiting reaction. (C) 2003 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled keywords: | polysilanes; oligosilanes; Wurtz reductive coupling; backbiting; endbiting HIGH POLYMERS; POLYMERIZATION |
| 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: | 22 May 2008 09:45 |
| Last Modified: | 14 Jan 2010 14:07 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/2536 (The current URI for this page, for reference purposes) |
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