Cyclic poly(hydrogenmethylsiloxane) fractions [H(Me)SiO]x with 4 < x![[> with combining macron]](https://www.rsc.org/images/entities/char_003e_0304.gif)
< 24 (x= number-average degree of polymerisation) have been prepared by a pyrolysis reaction and interacted with suitable mesogenic alkenes to form liquid crystalline cyclic polymers; some of the properties of these polymers are reported here and compared with those of their open chain analogues.
R. D. C. Richards, W. D. Hawthorne, J. S. Hill, M. S. White, D. Lacey, J. A. Semlyen, G. W. Gray and T. C. Kendrick, J. Chem. Soc., Chem. Commun., 1990, 95 DOI: 10.1039/C39900000095
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