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Cellulose Derivatives : Organic Crystals and Liquid Crystals : Used the Longest, Known the Least

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The basic characteristic of cellulose chemical constitution and its crystalline structure are presented. The LC-phases of cellulose derivatives were investigated by a series of techniques, which made possible to establish the specificity of chiral nematic mesomorphic structure and its transitions in correlation with intermolecular interactions of the side chains. The anisotropic composites, formed by stabilization of mesomorphic phase of LC-cellulose derivatives by photopolymerization of lyotropic solvent (acrylic acid), are characterized by thermooptical analysis, dielectric spectroscopy, dynamic mechanical measurements, WAXS and Raman spectroscopy. These techniques show that the structure of the vinyl polymer within the composite is dependent on the oriented mesophase. The vinyl polymer phase in the glassy state counteracts the relaxation of LC-cellulose derivatives leading to its stabilization and reorientation in the heating and cooling cycles. These properties suggest such composites as materials of interesting from both fundamental and practical points of view.
Rocznik
Strony
187--200
Opis fizyczny
Bibliogr. 31 poz., rys.
Twórcy
  • Department of Molecular Physics, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland
  • Department of Molecular Physics, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland
autor
  • Department of Molecular Physics, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland
autor
  • Department of Molecular Physics, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland
autor
  • Department of Molecular Physics, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland
Bibliografia
  • 1.Cellulose and Cellulose Derivatives, Eds. N.M. Bikales and L. Segal, NY 1971.
  • 2.Cellulose Chemistry and Its Applications, Ed. E. Horwood, Chichester 1984.
  • 3.Cellulose: Structure, Modification and Hydrolysis, Eds. A.Y. Young,R.M. Rowell, NY 1986.
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  • 8.Kryszewski M.,X-ray Investigation of Polymer Structure II,Ed. A.Włochowicz,Proc. of SPIE, 4240, p. 1 (2000).
  • 9. Flory P.J.,Recent Advancesin Liquid Crystalline Polymers, Ed. L.L. Chappy, NY 1985, p. 95.
  • 10.Werbowyj R.S. and Gray D.G., Mol. Cryst. Liq. Crys., 34,97 (1976).
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  • 12.Wojciechowski P.,J. Appl. Polym. Sci., 76, 837 (2000).
  • 13.Wojciechowski P., Proc. Of SPIE, 3319,240 (1997).
  • 14.Wojciechowski P., Mol. Cryst. Liq. Cryst, 354, 309 (2000).
  • 15.Wojciechowski P., Mol. Phys. Reports, 25, 64 (1999).
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  • 17.Crawford G.P. and Zumer S., Liquid Crystals inComplex Geometries, London 1996.
  • 18.Wojciechowski P., Okrasa L., Ułański J. and Kiyszewski M., Advance Materials for Optics and Electronics, 6, 386 (1996).
  • 19.Ułański J., Wojciechowski P. and Kryszewski M., Nonlinear Opt., 9,203 (1995).
  • 20.Wojciechowski P., Mesomorphism of Cellulose Derivatives and TheirComposites, Habilitation Thesis,Technical University of Łódź, Scientific Papers 847 Łódź 2000 (in Polish).
  • 21.OkrasaL.,Ułański J., Wojciechowski P.,Boiteux G. and Seytre G.,J., NonCryst. Solids, 658,235 (1998).
  • 22.Okrasa L., Boitewc G., Ułański J. and Seytre G., Polymer, 42,3817 (2001).
  • 23.Okrasa L., Boiteux G., Ułański J. and Seytre G., Mat. Res. Inovat., 4, 278 (2001).
  • 24.Paleos C.M. and Tsiourvas D., Angew. Chem., 34,1696 (1995).
  • 25.ZugenmaierP., inHandbook of Liquid Crystals, Cellulosic Liquid Crystals; Demus D., Goodby J., Gray D., Spies H.W., Wille V., Eds.; Wiley VCH, 1998, V. 3,451 p.
  • 26.Kozanecki M., UłańskiJ.,Wojciechowski P., Kryszewski M.,Bondeulle M. and Duval E., Macromol. Symp., 141, 185 (1999).
  • 27.Kozanecki M., Duval E., Ułański J., Okrasa L. and Saviot L., Polymer, 41, 751 (2000).
  • 28.OkrasaL.,Rełaxation Processes in Anisotropic Polymer Composites Containing Liquid Crystalline Cellulose Derivatives, Doctoral Thesis, Technical University of Łódź, Łódź 1999 (in English).
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  • 30.Kryszewski M. and Wojciechowski P., Polymers for Advanced Technologies, 9, 654 (1998).
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ1-0020-0023
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