Synthesis and Properties of Mesogen-Jacketed Liquid Crystalline Polymers Containing Bistolane Mesogen
In: Journal of polymer science. Part A. Polymer chemistry, Jg. 48 (2010), Heft 21, S. 4627-4639
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Zugriff:
On the basis of the concept of mesogen-jacketed liquid crystalline polymers, a series of new methacrylate monomers, (2,5-bis[2-(4'-alkoxyphenyl) ethynyl] benzyl methacrylate (MACn, n = 4, 6, 8, 10, and 12) and 2,5-bis[2-(6'-decanoxynaphthyl) ethynyl] benzyl methacrylate (MANC10), and their polymers, PMACn (n = 4, 6, 8, 10, and 12) and PMANC10 were synthesized. The bistolane mesogen with large π-electron conjugation were side-attached to the polymer backbone via short linkages. Various characterization techniques such as differential scanning calorimetry, wide-angle X-ray diffraction, and polarized light microscopy were used to study their mesomorphic phase behavior. The polymer PMACn with shorter flexible substituents (n = 4) forms the columnar nematic (ΦN) phase, but other polymers with longer flexible tails (n = 6, 8, 10, and 12) can develop into a smetic A (SA) phase instead of a ΦN phase. The PMANC10 containing naphthyl can also form a well-defined SA phase.
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Synthesis and Properties of Mesogen-Jacketed Liquid Crystalline Polymers Containing Bistolane Mesogen
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Autor/in / Beteiligte Person: | ZHEN LIN, ZHANG ; LAN YING, ZHANG ; ZHI HAO, SHEN ; GUANG ZHONG, XING ; XING HE, FAN ; QI FENG, ZHOU |
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Zeitschrift: | Journal of polymer science. Part A. Polymer chemistry, Jg. 48 (2010), Heft 21, S. 4627-4639 |
Veröffentlichung: | Hoboken, NJ: Wiley, 2010 |
Medientyp: | academicJournal |
Umfang: | print, 40 ref |
ISSN: | 0887-624X (print) |
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