Effect of flexible spacer length on the mesophase structures of main-chain/side-chain liquid crystalline polymers based on ethyl cellulose

Polymer Journal

Volumn 42, Issue 9, 2010, Pages 752-758

  Hu, Tianhui ^a   Yi, Jie ^a   Xiao, Jianbo ^a   Zhang, Hailiang ^a  

^a Key Laboratory of Polymeric Materials and Application Technology of Hunan Province   (China)

Author keywords

DCC coupling; liquid crystalline cellulose derivative; MCSCLCP; mesophase structure; spacer length

Indexed keywords

DCC COUPLING; LIQUID CRYSTALLINE CELLULOSE DERIVATIVE; MCSCLCP; MESOPHASE STRUCTURES; SPACER LENGTHS;

CELLULOSE; CELLULOSE DERIVATIVES; CHROMATOGRAPHIC ANALYSIS; CRYSTAL STRUCTURE; CRYSTALLINE MATERIALS; CRYSTALS; DIFFERENTIAL SCANNING CALORIMETRY; FOURIER TRANSFORMS; GELS; GLASS TRANSITION; INFRARED SPECTROSCOPY; LIQUIDS; MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; OPTICAL MICROSCOPY; POLYMERS; TEMPERATURE; X RAY DIFFRACTION; X RAY DIFFRACTION ANALYSIS;

LAMELLAR STRUCTURES;

CALORIMETRY; CRYSTAL STRUCTURE; ETHYL CELLULOSE; FOURIER ANALYSIS; INFRARED SPECTROSCOPY; LIQUID CRYSTALS; NUCLEAR MAGNETIC RESONANCE; PHASE TRANSITION; POLYMERS; X RAY DIFFRACTION;

EID: 77956364442     PISSN: 00323896     EISSN: 13490540     Source Type: Journal    
DOI: 10.1038/pj.2010.67     Document Type: Article

References (57)

1. Reck, B. & Ringsdorf, H. Combined liquid crystalline polymers: mesogens in the main chain and as side groups. Macromol. Rapid Commun. 6, 291-299 (1985).
2. Reck, B. & Ringsdorf, H. Combined liquid-crystalline polymers: rigid rod and semi-flexible main chain polyesters with lateral mesogenic groups. Macromol. Rapid Com-mun. 7, 389-396 (1986).
3. Kremer, F., Vallerien, S. U., Zentel, R. & Kapitza, H. Broad-band dielectric spectroscopy on a set of combined main-chain side-group liquid-crystalline polymers. Macromole-cules 22, 4040-4045 (1989).
4. Piao, X. L., Kim, J.-S., Yun, Y.-K., Jin, J.-I. & Hong, S.-K. Combined type liquid crystalline polymers composed of poly(p-phenylene terephthalate) main chain and azobenzene mesogenic side groups attached through polymethylene spacers. Macro-molecules 30, 2294-2299 (1997).
5. Voigt-Martin, I. G., Durst, H., Reck, B. & Ringsdorf, H. Structure analysis of a combined main-chain/side-group liquid crystalline polymer by electron microscopy. Macromole-cules 21, 1620-1626 (1988).
6. Zentel, R. & Reckert, G. Liquid crystalline elastomers based on liquid crystalline side group, main chain and combined polymers. Macromol. Chem. Phys. 187, 1915-1926 (1986).
7. Zentel, R., Reckert, G., Bualek, S. & Kapitza, H. Liquid-crystalline elastomers with cholesteric and chiral smectic C* phases. Macromol. Chem. Phys. 190, 2869-2884 (1989).
8. Zentel, R. & Brehmer, M. Combined LC main chain/side chain polymers. Acta Polym. 47, 141-149 (1996).
9. Endres, B. W., Ebert, M., Wendorff, J. H., Reck, B. & Ringsdorf, H. Combined main chain/side chain polymers. A new class of liquid crystalline polymers with unusual structural, thermodynamic and dynamic properties. Liq. Cryst. 7, 217-239 (1990).
10. Reck, B., Ringsdorf, H., Gardner, K. & Howard, S. Jr. Combined liquid-crystalline polymers: rigid-rod type main-chain polyester with lateral mesogenic groups. Macromol. Chem. Phys. 190, 2511-2526 (1989).
11. Kapitza, H. & Zentel, R. Chiral liquid-crystalline polymers by polymer-analogous reactions. Macromol. Chem. Phys. 192, 1859-1872 (1991).
12. Pakula, T. & Zentel, R. Mechanical behaviour of liquid-crystalline polymers and their networks. Macromol. Chem. Phys. 192, 2401-2410 (1991).
13. Ge, J. J., Zhang, A., McCreight, K. W., Ho, R.-M., Wang, S.-Y., Jin, X., Harris, F. W. & Cheng, S. Z. D. Phase structures, transition behaviors, and surface alignment in polymers containing rigid-rodlike backbones with flexible side chains. 1. Monotropic phase behavior in a main-chain/side-chain liquid crystalline polyester. Macromolecules 30, 6498-6506 (1997).
14. Diele, S., Naumann, M., Kuschel, F., Reck, B. & Ringsdorf, H. X-ray investigation of combined main-chain/side-chain liquid-crystalline polymers. Liq. Cryst. 7, 721-729 (1990).
15. Ruan, J., Ge, J. J., Zhang, A., Shi, J., Wang, S.-Y., Harris, F. W. & Cheng, S. Z. D. Polymorphous structures and their phase relationships in a main-chain/side-chain liquid crystalline polyester. Macromolecules 35, 736-745 (2002).
16. Chen, B.-Q., Kameyama, A. & Nishikubo, T. New combined liquid crystalline polymers from polyaddition of biphenol diglycidyl ether and trimeric esters. Macromolecules 32, 6485-6492 (1999).
17. Ruan, J.-J., Jin, S., Ge, J. J., Jeong, K.-U., Graham, M. J., Zhang, D., Harris, F. W., Lotz, B. & Cheng, S. Z. D. Side chain length dependence on supra-molecular structures in a series of aromatic polyimides having terminal 4-cyanobiphenyl liquid crystalline side chains. Polymer 47, 4182-4193 (2006).
18. Schaefer, K. E., Keller, P. & Deming, T. J. Thermotropic polypeptides bearing side-on mesogens. Macromolecules 39, 19-22 (2006).
19. Watanabe, J. & Tominaga, T. Thermotropic liquid crystals in polypeptides with mesogenic side chains. 1. Macromolecules 26, 4032-4036 (1993).
20. Kapitza, H. & Zentel, R. Combined liquid-crystalline polymers with chiral phases, 2. Lateral substituents. Macromol. Chem. Phys. 189, 1793-1807 (1988).
21. Zhou, M. & Han, C. D. Synthesis and characterization of a combined main-chain/side-chain liquid-crystalline polymer exhibiting both thermotropic and lyotropic characteristics and its lyotropic phase behavior. Macromolecules 38, 9602-9609 (2005).
22. Huang, W. & Han, C. D. Synthesis of combined main-chain/side-chain liquid-crystalline polymers via self-assembly. Macromolecules 39, 4735-4745 (2006).
23. Joo, S.-H., Yun, Y.-K., Jin, J.-I., Kim, D.-C. & Zin, W.-C. Synthesis of liquid crystalline polyesters of various types by acyclic diene metathesis polymerization. Macromolecules 33, 6704-6712 (2000).
24. Poths, H., Zentel, R., Vallerien, S. U. & Kremer, F. LC-polymers with axial chirality. Mol. Cryst. Liq. Cryst. 203, 101-111 (1991).
25. Lee, J.-W., Jin, J.-I., Jo, B.-W., Kim, J.-S., Zin, W.-C. & Kang, Y.-S. Synthesis and properties of combined type liquid crystalline polymers\aromatic polyesters bearing biphenylazophenyl mesogenic pendants connected to the backbone through polymethy-lene spacers. Acta Polym. 50, 399-407 (1999).
26. Cha, S. W., Jin, J.-I., Kim, D.-C. & Zin, W.-C. Combined type liquid crystalline poly(oxy-1,4-phenyleneoxyterephthaloyl)s bearing cholesterol pendants attached through polymethylene spacers. Macromolecules 34, 5342-5348 (2001).
27. Xie, H. L., Hu, T. H., Zhang, X. F., Zhang, H. L., Chen, E. Q. & Zhou, Q. F. Design, synthesis, and characterization of a combined main-chain/side-chain liquid crystalline polymer based on mesogen-jacketed liquid crystal polymer via atom transfer radical polymerization. J. Polym. Sci. A Polym. Chem. 46, 7310-7320 (2008).
28. Hu, T. H., Xie, H. L., Xiao, J. B., Zhang, H. L. & Chen, E. Q. Design, synthesis, and characterization of a combined main-chain/side-chain liquid crystalline polymer based on ethyl cellulose. Cellulose 17, 547-558 (2010).
29. Klemm, D., Heublein, B., Fink, H.-P. & Bohn, A. Cellulose: fascinating biopolymer and sustainable raw material. Angew. Chem. Int. Ed. 44, 3358-3393 (2005).
30. Canejo, J. P., Borges, J. P., Godinho, M. H., Brogueira, P., Teixeira, P. I. C. & Terentjev, E. M. Helical twisting of electrospun liquid crystalline cellulose micro-and nanofibers. Adv. Mater. 20, 4821-4825 (2008).
31. Yagi, S., Kasuya, N. & Fukuda, K. Synthesis and characterization of cellulose-b-polystyrene. Poly. J 42, 342-348 (2010).
32. Chang, F., Yamabuki, K., Onimura, K. & Oishi, T. Modification of cellulose by using atom transfer radical polymerization and ring-opening polymerization. Poly. J. 40, 1170-1179 (2008).
33. Chanzy, H., Nawrot, S., Peguy, A., Smith, P. & Chevalier, J. Phase behavior of the quasiternary system N-methylmorpholine-N-oxide, water, and cellulose. J. Polym. Sci. B Polym. Phys. 20, 1909-1924 (1982).
34. Werbowyj, R. S. & Gray, D. G. Liquid crystalline structure in aqueous hydroxypropyl cellulose solutions. Mol. Cryst. Liq. Cryst. 34, 97-103 (1976).
35. Isogai, A., Ishizu, A. & Nakano, J. Preparation of tri-O-benzylcellulose by the use of nonaqueous cellulose solvents. J. Appl. Polym. Sci. 29, 2097-2109 (1984). (Pubitemid 14623539)
36. Bhadani, S. N. & Gray, D. G. Cellulose-based liquid crystalline polymers; esters of (hydroxypropyl) cellulose. Mol. Cryst. Liq. Cryst. 99, 29-38 (1983).
37. 13C-NMR studies of some cellulose derivatives. J. Polym. Sci. A Polym. Chem. 25, 3355-3362 (1987).
38. Yamagishi, T., Fukuda, T., Miyamoto, T. & Watanabe, J. Thermotropic cellulose derivatives with flexible substituents. Polym. Bull. 20, 373-377 (1988).
39. Jiang, S. H. & Huang, Y. Formation and textures of ethyl-cyanoethyl cellulose/acrylic acid mesophase. J. Appl. Polym. Sci. 50, 607-613 (1993).
40. Chen, J. N., Huang, Y. F., Yuan, J. Y., Yan, S. Q. & Ye, H. Thermotropic liquid crystalline behaviors of ethylcellulose. J. Appl. Polym. Sci. 45, 2153-2158 (1992).
41. Huang, B., Ge, J. J., Li, Y. & Hou, H. Aliphatic acid esters of (2-hydroxypropyl) cellulose\effect of side chain length on properties of cholesteric liquid crystals. Polymer 48, 264-269 (2007).
42. Shaikh, V. A. E., Maldar, N. N., Lonikar, S. V., Rajan, C. R. & Ponrathnam, S. Thermotropic liquid crystalline behavior of cholesterol-linked hydroxyethyl cellulose. J. Appl. Polym. Sci. 72, 763-770 (1999).
43. Rusig, I., Godinho, M. H., Varichon, L., Sixou, P., Dedier, J., Filliatre, C. & Martins, A. F. Optical properties of cholesteric (2-hydroxypropyl) cellulose (HPC) esters. J. Polym. Sci. B Polym. Phys. 32, 1907-1914 (1994).
44. Chiba, R., Ito, M. & Nishio, Y. Addition effects of imidazolium salts on mesophase structure and optical properties of concentrated hydroxypropyl cellulose aqueous solutions. Poly. J. 42, 232-241 (2010).
45. Terbojevich, M., Cosani, A., Focher, B., Gastaldi, G., Wu, W., Marsano, E. & Conio, G. Solution properties and mesophase formation of 4-phenyl-benzoylcellulose. Cellulose 6, 71-87 (1999).
46. Wu, C., Huang, Y. & Chen, S. The synthesis and thermotropic liquid crystalline behavior of mesogenic moiety-linked ethyl cellulose. Polym. Bull. 48, 33-41 (2002).
47. Wu, C., Gu, Q., Huang, Y. & Chen, S. The synthesis and thermotropic behaviour of an ethyl cellulose derivative containing azobenzene-based mesogenic moieties. Liq. Cryst. 30, 733-737 (2003).
48. Wu, C., Gu, Q., Zhang, R., Huang, Y. & Chen, S. Synthesis and lyotropic behavior of mesogen-linked cellulose acetates. J. Appl. Polym. Sci. 92, 2693-2697 (2004).
49. Granström, M., Havimo, M., Heikkilä, M. & Kilpeläinen, I. Synthesis, characterisation and application of novel self-assembled comb-like liquid crystalline biphenyl-cellulose as UV absorber for paper. J. Mater. Chem. 19, 639-644 (2009).
50. Stewart, D. & Imrie, C. T. Synthesis and characterization of spin-labelled and spin-probed side-chain liquid crystal polymers. Polymer 37, 3419-3425 (1996).
51. Cormack, P. A. G., Moore, B. D. & Sherrington, D. C. Monodisperse liquid crystalline peptides. J. Mater. Chem. 7, 1977-1983 (1997).
52. Ritcey, A. M., Holme, K. R. & Gray, D. G. Cholesteric properties of cellulose acetate and triacetate in trifluoroacetic acid. Macromolecules 21, 2914-2917 (1988).
53. Pugh, C. & Kiste, A. L. Molecular engineering of side-chain liquid crystalline polymers by living polymerizations. Prog. Polym. Sci. 22, 601-691 (1997).
54. Ahn, S. K., Le, L. T. N. & Kasi, R. M. Synthesis and characterization of side-chain liquid crystalline polymers bearing cholesterol mesogen. J. Polym. Sci. A Polym. Chem. 47, 2690-2701 (2009).
55. Zhu, X. Q., Liu, J. H., Liu, Y. X. & Chen, E. Q. Molecular packing and phase transitions of side-chain liquid crystalline polymethacrylates based on p-methoxyazobenzene. Polymer 49, 3103-3110 (2008).
56. Xie, H. L., Liu Y, X., Zhong, G. Q., Zhang, H. L., Chen, E. Q. & Zhou, Q. F. Design, synthesis, and multiple hierarchical ordering of a novel side-chain liquid crystalline-rod diblock copolymer. Macromolecules 42, 8774-8780 (2009).
57. Gray, G. W. & Goodby, J. W. Smectic Liquid Crystals. (Blackie Press, Glasgow London, 1984).