Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals
Comparative studies were carried out of cholesteric liquid crystal dispersions of anisotropic nanoparticles of different types, namely, essentially rod-like carbon nanotubes (CNT) and plate-like exfoliated particles of organo-modified Laponite and montmorillonite clays. The characteristic properties...
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| Veröffentlicht in: | Functional Materials |
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| Datum: | 2012 |
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НТК «Інститут монокристалів» НАН України
2012
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| Zitieren: | Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals / A.M. Chepikov, S.S. Minenko, L.N. Lisetski, N.I. Lebovka, N.V. Usol'tseva, M.S. Soskin // Functional Materials. — 2012. — Т. 19, № 3. — С. 343-347. — Бібліогр.: 17 назв. — англ. |
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Chepikov, A.M. Minenko, S.S. Lisetski, L.N. Lebovka, N.I. Usol'tseva, N.V. Soskin, M.S. 2018-06-14T18:51:39Z 2018-06-14T18:51:39Z 2012 Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals / A.M. Chepikov, S.S. Minenko, L.N. Lisetski, N.I. Lebovka, N.V. Usol'tseva, M.S. Soskin // Functional Materials. — 2012. — Т. 19, № 3. — С. 343-347. — Бібліогр.: 17 назв. — англ. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/135312 Comparative studies were carried out of cholesteric liquid crystal dispersions of anisotropic nanoparticles of different types, namely, essentially rod-like carbon nanotubes (CNT) and plate-like exfoliated particles of organo-modified Laponite and montmorillonite clays. The characteristic properties under study were selective reflection spectra of the cholesteric planar structure and optical transmission changes at the transition temperatures to the isotropic phase. Marked differences were noted in CNT-containing systems for purely steroid matrices and nematic-cholesteric mixtures with nematic 5CB, which presumably reflected differences in CNT interaction with aromatic and non-aromatic molecules. Effects of clay platelets upon selective reflection spectra were much smaller as compared to CNTs, in agreement with our assumption that dispersed plate-like particles should stabilize the planar cholesteric texture. The processes of CNT aggregation were markedly slower in cholesteric matrices as compared with nematics due to higher effective viscosity. en НТК «Інститут монокристалів» НАН України Functional Materials Characterization and properties Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals Дисперсії вуглецевих нанотрубок та платівок органомодифіковапих глин в холестеричних рідких кристалах Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| spellingShingle |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals Chepikov, A.M. Minenko, S.S. Lisetski, L.N. Lebovka, N.I. Usol'tseva, N.V. Soskin, M.S. Characterization and properties |
| title_short |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| title_full |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| title_fullStr |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| title_full_unstemmed |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| title_sort |
dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals |
| author |
Chepikov, A.M. Minenko, S.S. Lisetski, L.N. Lebovka, N.I. Usol'tseva, N.V. Soskin, M.S. |
| author_facet |
Chepikov, A.M. Minenko, S.S. Lisetski, L.N. Lebovka, N.I. Usol'tseva, N.V. Soskin, M.S. |
| topic |
Characterization and properties |
| topic_facet |
Characterization and properties |
| publishDate |
2012 |
| language |
English |
| container_title |
Functional Materials |
| publisher |
НТК «Інститут монокристалів» НАН України |
| format |
Article |
| title_alt |
Дисперсії вуглецевих нанотрубок та платівок органомодифіковапих глин в холестеричних рідких кристалах |
| description |
Comparative studies were carried out of cholesteric liquid crystal dispersions of anisotropic nanoparticles of different types, namely, essentially rod-like carbon nanotubes (CNT) and plate-like exfoliated particles of organo-modified Laponite and montmorillonite clays. The characteristic properties under study were selective reflection spectra of the cholesteric planar structure and optical transmission changes at the transition temperatures to the isotropic phase. Marked differences were noted in CNT-containing systems for purely steroid matrices and nematic-cholesteric mixtures with nematic 5CB, which presumably reflected differences in CNT interaction with aromatic and non-aromatic molecules. Effects of clay platelets upon selective reflection spectra were much smaller as compared to CNTs, in agreement with our assumption that dispersed plate-like particles should stabilize the planar cholesteric texture. The processes of CNT aggregation were markedly slower in cholesteric matrices as compared with nematics due to higher effective viscosity.
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| issn |
1027-5495 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/135312 |
| citation_txt |
Dispersions of carbon nanotubes and organomodified clay platelets in cholesteric liquid crystals / A.M. Chepikov, S.S. Minenko, L.N. Lisetski, N.I. Lebovka, N.V. Usol'tseva, M.S. Soskin // Functional Materials. — 2012. — Т. 19, № 3. — С. 343-347. — Бібліогр.: 17 назв. — англ. |
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2025-12-07T18:03:44Z |
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