Depolarized light intensity studies on the order parameter in lyotropic liquid crystalline polymer
作者： Jiaping Lin , Shijin Li
DOI: 10.1016/0014-3057(94)90114-7
关键词:
摘要: Abstract The order parameter, S , for the nematic solutions of poly( p -benzamide) (PBA) in concentrated sulfuric acid was determined with Depolarized light intensity (DLI) technique. It shown that DLI technique is a valuable and convenient method to study parameter lyotropic liquid crystalline polymers. From experiments, found decrease temperature increase polymer concentration. concentration dependence further compared results derived from theories proposed by Doi Onsager.
elsevier.com
sci-hub.se 参考文章(20)
Young Chul Lee, Jung Do Huh, In Jae Chung, Molecular Dynamics and Rheological Properties of Liquid Crystalline Polymer in an Electric Field Polymer Journal. ,vol. 22, pp. 295- 303 ,(1990) , 10.1295/POLYMJ.22.295
I. Kirshenbaum, R. B. Isaacson, W. C. Feist, The effect of molecular motion on the birefringence‐temperature curve for poly 4‐methyl‐1‐pentene Journal of Polymer Science Part B: Polymer Letters. ,vol. 2, pp. 897- 901 ,(1964) , 10.1002/POL.1964.110020915
Edward M. Barrall, Emilio J. Gallegos, Depolarized light and differential thermal analyses of some polyolefin transitions Journal of Polymer Science Part A-2: Polymer Physics. ,vol. 5, pp. 113- 123 ,(1967) , 10.1002/POL.1967.160050110
R. Capasso, P. Iannelli, A. Roviello, A. Sirigu, Orientational order in the nematic phase of low molecular weight analogs of nematic polymers Macromolecules. ,vol. 18, pp. 2773- 2775 ,(1985) , 10.1021/MA00154A070
Takeji Hashimoto, Satoshi Ebisu, Hiromichi Kawai, A novel technique for characterizing the sense of twisting in cholesteric liquid crystals Journal of Polymer Science: Polymer Letters Edition. ,vol. 18, pp. 569- 576 ,(1980) , 10.1002/POL.1980.130180810
C. Noel, F. Laupretre, C. Friedrich, B. Fayolle, L. Bosio, Synthesis and mesomorphic properties of a new thermotropic liquid-crystalline ‘backbone’ copolyester Polymer. ,vol. 25, pp. 808- 814 ,(1984) , 10.1016/0032-3861(84)90011-9
R. W. Duke, D. B. DuPré, E. T. Samulski, Temperature dependence of orientational order in a polypeptide liquid crystal The Journal of Chemical Physics. ,vol. 66, pp. 2748- 2749 ,(1977) , 10.1063/1.434225
M. Luisa Sartirana, Enrico Marsano, Estalla Bianchi, Alberto Ciferri, Order parameter in polymer liquid crystals. 1. Poly(p-benzamide) in N,N-dimethylacetamide/lithium chloride Macromolecules. ,vol. 19, pp. 1176- 1180 ,(1986) , 10.1021/MA00158A039
Sergio Bruckner, J. Campbell Scott, Do Y. Yoon, Anselm C. Griffin, NMR study of nematic order of semiflexible thermotropic polymers Macromolecules. ,vol. 18, pp. 2709- 2713 ,(1985) , 10.1021/MA00154A057
Lars Onsager, THE EFFECTS OF SHAPE ON THE INTERACTION OF COLLOIDAL PARTICLES Annals of the New York Academy of Sciences. ,vol. 51, pp. 627- 659 ,(1949) , 10.1111/J.1749-6632.1949.TB27296.X