ORIENTATIONAL ORDER IN LIQUID-CRYSTAL SOLUTIONS OF POLYHEXYLISOCYANATE .1. INFRARED DICHROISM

被引：6
|
作者：
WANG, HH
DUPRE, DB
机构：
[1] Department of Chemistry, University of Louisville, Louisville
来源：
JOURNAL OF CHEMICAL PHYSICS | 1992年 / 96卷 / 02期
关键词：
D O I：
10.1063/1.462136
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The concentration and molecular weight dependence of the order parameter was measured for liquid crystalline solutions of the semiflexible, extended chain polymer polyhexylisocyanate in chloroform and toluene. Order parameters were determined from the infrared dichroism of the stretching vibration of the C-N bond in the helical polymer backbone. Results are compared with predictions of a version of the Onsager theory for wormlike chains, extended to higher solute densities by the use of a decoupling approximation.
引用
收藏
页码：1523 / 1529
页数：7
相关论文
共 50 条
  • [21] ORIENTATIONAL ORDERING AND BLENDING OF LIQUID-CRYSTAL POLYMERS
    STUPP, SI
    WU, J
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1988, 195 : 153 - PMSE
  • [22] ORIENTATIONAL EFFECTS IN THERMOTROPIC LIQUID-CRYSTAL POLYMERS
    SHIBAEV, VP
    KOSTROMIN, SG
    TALROZE, RV
    PLATE, NA
    DOKLADY AKADEMII NAUK SSSR, 1981, 259 (05): : 1147 - 1151
  • [23] PHOTOPHYSICAL STUDIES IN LIQUID-CRYSTAL SOLUTIONS AND LIQUID-CRYSTAL FOAMS
    LIANG, P
    THOMAS, JK
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1988, 124 (01) : 358 - 364
  • [24] MOLECULAR-MOTION AND ORIENTATIONAL ORDER IN A NEMATIC LIQUID-CRYSTAL - ELECTRON RESONANCE INVESTIGATION
    BROOKS, SA
    LUCKHURST, GR
    PEDULLI, GF
    ROBERTS, J
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1976, 72 : 651 - 670
  • [25] SURFACE-INDUCED ORIENTATIONAL ORDER IN THE ISOTROPIC-PHASE OF A LIQUID-CRYSTAL MATERIAL
    CRAWFORD, GP
    STANNARIUS, R
    DOANE, JW
    PHYSICAL REVIEW A, 1991, 44 (04): : 2558 - 2569
  • [26] LIQUID-CRYSTAL INFRARED MODULATION
    PASKO, JG
    TRACY, J
    ELSER, W
    OPTICAL ENGINEERING, 1981, 20 (06) : 970 - 975
  • [27] MOLECULAR-ORIENTATION OF POLYIMIDE FILMS FOR LIQUID-CRYSTAL ALIGNMENT STUDIED BY INFRARED DICHROISM
    SAWA, K
    SUMIYOSHI, K
    HIRAI, Y
    TATEISHI, K
    KAMEJIMA, T
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1994, 33 (11): : 6273 - 6276
  • [28] ORDERED STRUCTURE OF THERMOTROPIC LIQUID-CRYSTAL POLYMERS .1. CHARACTERIZATION OF LIQUID-CRYSTAL DOMAIN TEXTURE
    SHIWAKU, T
    NAKAI, A
    HASEGAWA, H
    HASHIMOTO, T
    MACROMOLECULES, 1990, 23 (06) : 1590 - 1599
  • [29] Orientational Nematodynamics of a Compressible Hybrid Liquid-Crystal Cell
    Zakharov, A. V.
    Vakulenko, A. A.
    PHYSICS OF THE SOLID STATE, 2009, 51 (06) : 1298 - 1305
  • [30] THE ORIENTATIONAL BEHAVIOR OF DICHLOROBENZENES IN NEMATIC LIQUID-CRYSTAL SOLVENTS
    YIM, CT
    GILSON, DFR
    CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1989, 67 (01): : 54 - 59
12345