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  High resolution X-ray measurements of the nematic-smectic C phase transition in the polymeric liquid crystal C-6 polysiloxane

Nachaliel, E., Keller, E. N., Davidov, D., Zimmermann, H., & Deutsch, M. (1987). High resolution X-ray measurements of the nematic-smectic C phase transition in the polymeric liquid crystal C-6 polysiloxane. Molecular Crystals and Liquid Crystals, 149(1), 393-399. doi:10.1080/00268948708082994.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-AEA3-0 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-C80D-1
Genre: Journal Article

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MolCrystLiqCryst_149_1987_393.pdf (Any fulltext), 231KB
 
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 Creators:
Nachaliel, Ehud, Author
Keller, Edward N., Author
Davidov, Dan, Author
Zimmermann, Herbert1, 2, 3, 4, Author           
Deutsch, Moshe, Author
Affiliations:
1Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497705              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              
3Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society, ou_1497749              
4Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497712              

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Free keywords: polysiloxane C-6; phase transition (nematic-smectic;high resolution; x-ray; flexible spacer; flexible backbone
 Abstract: We report on high-resolution X-ray measurements of the nematic to smectic C phase transition in the polymeric liquid crystal, C-6 polysiloxane. Preliminary results show that smectic fluctuations measured in the nematic phase are roughly consistent with a Chen and Lubensky type of theory, as was developed for monomeric liquid crystals. The phase transition in C-6 polysiloxane shows pre-transitional smectic fluctuations at least 30°C above the phase transition temperature, TNC, where TNC = 37.84 ± 0.05°C. At TNC, there is a weak first order phase transition to the smectic C phase.

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Language(s): eng - English
 Dates: 1986-08-011986-12-052007-03-281987
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1080/00268948708082994
 Degree: -

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Title: Molecular Crystals and Liquid Crystals
Source Genre: Journal
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Publ. Info: Philadelphia, Pa. : Taylor and Francis, Inc.
Pages: - Volume / Issue: 149 (1) Sequence Number: - Start / End Page: 393 - 399 Identifier: ISSN: 1542-1406
CoNE: https://pure.mpg.de/cone/journals/resource/954925597576