Synthesis of a main-chain liquid crystalline azo-polymer via “click” chemistry
作者： Xiaolin Kang , Jiarui Zhao , Haiyang Li , Shangjin He
DOI: 10.1007/S00396-013-2946-5
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摘要: A main-chain liquid crystalline azo-polymer (BPHCHA) was prepared through the copper-catalyzed “click” reaction between alkyne group on 4,4′-bis((6-(propargyloxy)hexyl)oxy) biphenyl (BPH) and azide 4-(6-azidohexyloxy)carbonyl-4′-(6′-azidohexyloxy) azobenzene (AHCHA). The confirmed by FT-IR, 1H NMR, GPC studies. phase transition behavior of BPH, AHCHA, resulting BPHCHA investigated differential scanning calorimetry (DSC) polarized optical microscopy (POM). AHCHA exhibited mesomorphic behavior, while BPH is a compound. from 39 to 69 °C for upon heating observed under POM. Schlieren texture at 130 cooling 150 annealed 15 min. Moreover, DSC POM studies showed that monotropic behavior.
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Hubert Audorff, Klaus Kreger, Roland Walker, Dietrich Haarer, Lothar Kador, Hans-Werner Schmidt, Holographic Gratings and Data Storage in Azobenzene-Containing Block Copolymers and Molecular Glasses Advances in Polymer Science. ,vol. 228, pp. 59- 121 ,(2009) , 10.1007/12_2009_35
Zeng Yan, Xinming Ji, Wei Wu, Jia Wei, Yanlei Yu, Light-Switchable Behavior of a Microarray of Azobenzene Liquid Crystal Polymer Induced by Photodeformation Macromolecular Rapid Communications. ,vol. 33, pp. 1362- 1367 ,(2012) , 10.1002/MARC.201200303
Yan Xia, Rafael Verduzco, Robert H. Grubbs, Julia A. Kornfield, Well-Defined Liquid Crystal Gels from Telechelic Polymers Journal of the American Chemical Society. ,vol. 130, pp. 1735- 1740 ,(2008) , 10.1021/JA077192J
Vincent Ladmiral, Giuseppe Mantovani, Guy J. Clarkson, Solene Cauet, Jacob L. Irwin, David M. Haddleton, Synthesis of neoglycopolymers by a combination of "click chemistry" and living radical polymerization. Journal of the American Chemical Society. ,vol. 128, pp. 4823- 4830 ,(2006) , 10.1021/JA058364K
Christian W. Tornøe, Caspar Christensen, Morten Meldal, Peptidotriazoles on solid phase: [1,2,3]-triazoles by regiospecific copper(i)-catalyzed 1,3-dipolar cycloadditions of terminal alkynes to azides. Journal of Organic Chemistry. ,vol. 67, pp. 3057- 3064 ,(2002) , 10.1021/JO011148J
Rolf Huisgen, 1,3-Dipolar Cycloadditions. Past and Future† Angewandte Chemie. ,vol. 2, pp. 565- 598 ,(1963) , 10.1002/ANIE.196305651
Brian C Englert, Selma Bakbak, Uwe HF Bunz, None, Click Chemistry as a Powerful Tool for the Construction of Functional Poly(p-phenyleneethynylene)s: Comparison of Pre- and Postfunctionalization Schemes Macromolecules. ,vol. 38, pp. 5868- 5877 ,(2005) , 10.1021/MA050484P
Zhenhua Cui, Yang Zhang, Shangjin He, Synthesis of a side chain liquid crystalline polymer containing the cholesteryl moiety via ROP and “click” chemistry Colloid and Polymer Science. ,vol. 286, pp. 1553- 1559 ,(2008) , 10.1007/S00396-008-1916-9
Peter J. Stenhouse, Enrique M. Valles, Simon W. Kantor, William J. MacKnight, Thermal and rheological properties of a liquid-crystalline polyurethane Macromolecules. ,vol. 22, pp. 1467- 1473 ,(1989) , 10.1021/MA00193A077
Xin-Ming Liu, Ling-dong Quan, Jun Tian, Frederic C. Laquer, Pawel Ciborowski, Dong Wang, Syntheses of click PEG-dexamethasone conjugates for the treatment of rheumatoid arthritis. Biomacromolecules. ,vol. 11, pp. 2621- 2628 ,(2010) , 10.1021/BM100578C