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dc.contributor.authorHo, Ming-Shouen_US
dc.contributor.authorHsu, Chain-Shuen_US
dc.date.accessioned2014-12-08T15:08:07Z-
dc.date.available2014-12-08T15:08:07Z-
dc.date.issued2009-12-01en_US
dc.identifier.issn0887-624Xen_US
dc.identifier.urihttp://dx.doi.org/10.1002/pola.23702en_US
dc.identifier.urihttp://hdl.handle.net/11536/6344-
dc.description.abstractThree kinds of chiral saccharide-containing liquid crystalline (LC) acetylenic monomers were prepared by click reaction between 2-azidoethyl-2,3,4,6-tetraacetyl-beta-D-galactopyranoside and 1-biphenylacetylene 4-alkynyloxybenzoate. The obtained monomers were polymerized by WCl(6)-Ph(4)Sn to form three side-chain LC polyacetylenes containing 1-[2-(2,3,4,6-tetraacetyl-beta-D-galactopyranos-1-yl)-ethyl]-1H-[1,2,3]-triazol-4'-biphenyl 4-alkynyloxybenzoate side groups. All monomers and polymers show a chiral smectic A phase. Self-assembled hiearchical superstructures of the chiral saccharide-containing LCs and LCPs in solution state were studied by field-emission scanning electron microscopy. Because of the LC behavior, the LC molecules exhibit a high segregation strength for phase separation in dilute solution (THF/H(2)O = 1:9 v/v). The self-assembled morphology of LC monomers was dependent upon the alkynyloxy chain length. Increasing the alkynyloxy chain length caused the self-assembled morphology to change from a platelet-like texture (LC-6) to helical twists morphology (LC-11 and LC-12). Furthermore, the helical twist morphological structure can be aligned on the polyimide rubbed glass substrate to form two-dimensional ordered helical patterns. In contrast to LC monomers, the LCP-11 self-assembled into much more complicate morphologies, including nanospheres and helical nanofibers. These nanofibers are evolved from the helical cables ornamented with entwining nanofibers upon natural evaporation of the solution in a mixture with a THF/methanol ratio of 3:7. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47:6596-6611, 2009en_US
dc.language.isoen_USen_US
dc.subjectliquid-crystalline polymers (LCP)en_US
dc.subjectpolyacetylenesen_US
dc.subjectself-assemblyen_US
dc.titleSynthesis and Hierarchical Superstructures of Side-Chain Liquid Crystal Polyacetylenes Containing Galactopyranoside End-Groupsen_US
dc.typeReviewen_US
dc.identifier.doi10.1002/pola.23702en_US
dc.identifier.journalJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRYen_US
dc.citation.volume47en_US
dc.citation.issue23en_US
dc.citation.spage6596en_US
dc.citation.epage6611en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000272455900024-
dc.citation.woscount10-
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