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Design of siloxane ...
Design of siloxane liquid crystals forming a de Vries SmA* phase
- Article/chapterEnglish2005
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LIBRIS-ID:oai:gup.ub.gu.se/115071
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https://gup.ub.gu.se/publication/115071URI
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https://doi.org/10.1080/15421400590958089DOI
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Subject category:art swepub-publicationtype
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We designed and synthesized new SmA* liquid crystals with different molecular architectures based on the chiral mesogen MR11, which was unsubstituted, or attached at one end and at both ends of a trisiloxane segment in the monosubstituted MSi3-MR11 and disubstituted DSi3-MR11 siloxanes, respectively. We studied the critical divergence of the magnetic susceptibility by measurements of the induced tilt angle theta(ind) at the SmA*-SmC* transition. While all three SmA* liquid crystals presented a de Vries character, this was quite distinctive for DSi3-MR11 for which the critical exponent gamma = 1.87 was maximal. X-ray diffraction experiments confirmed that the SmA*-SmC* transition occurred with essentially no layer shrinkage.
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Reihmann, M.
(author)
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Crudeli, A.
(author)
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Chiellini, E.
(author)
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Panarin, Y.
(author)
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Vij, J.
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Blanc, C.
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Lorman, V.
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Olsson, Nils,1970Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)(Swepub:gu)xolnil
(author)
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Göteborgs universitetInstitutionen för fysik (GU)
(creator_code:org_t)
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In:Molecular Crystals and Liquid Crystals: Informa UK Limited439, s. 2111-21231542-14061563-5287
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Galli, G.
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Reihmann, M.
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Crudeli, A.
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Chiellini, E.
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Panarin, Y.
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Vij, J.
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Blanc, C.
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Lorman, V.
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Olsson, Nils, 19 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Molecular Crysta ...
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University of Gothenburg