SYNTHESES AND CHARACTERIZATION OF A NEW TYPE OF LIQUID CRYSTALLINE POLYESTERS

被引:0
|
作者
白如科
吴承佩
邹应芳
孙武
潘才元
Toshiyuki Uryu
机构
[1] Anhui
[2] Department of Materials Science and Engineering
[3] Faculty of Engineering
[4] Hefei
[5] Institute of Industrial Science
[6] Japan
[7] Minato-ku
[8] Roppongi
[9] Tokyo 106
[10] University of Science and Technology of China
[11] University of Tokyo
关键词
New liquid crystalline polyesters; Synthesis; Interfacial polymerization; Phase transition temperature; Texture of liquid crystalline polymers;
D O I
暂无
中图分类号
O632 [碳链聚合物];
学科分类号
摘要
A new type of liquid crystalline polyesters with resorcin as one part of the mesogenic unitconnected together by polymethylene, or phenylene group, and lateral groups consisting of arigid azobenzene as another part of the mesogenic unit were synthesized by interfacialpolymerization of diacyl chlorides in 1, 2-dichloroethane and 2, 4-dihydroxy-4’-nitroazobenzen inaqueous alkaline solution. The polyester structures were confirmed by proton NMR and IRspectra. Their phase transition behavior and texture were studied by polarizing microscopy andDSC.
引用
收藏
页码:221 / 227
页数:7
相关论文
共 50 条
  • [31] Synthesis and characterization of liquid-crystalline polyesters with chiral and achiral twin spacers
    Srinivasan, R
    Radhakrishnan, G
    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2001, 39 (10) : 1743 - 1752
  • [32] Thermotropic polyesters .9. Liquid crystalline polyesters with fluorinated spacers
    Bilibin, AY
    Sokolova, OS
    Grigorjev, AJ
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 1996, 197 (03) : 1021 - 1029
  • [33] Wholly aromatic liquid-crystalline polyesters
    Han, HS
    Bhowmik, PK
    PROGRESS IN POLYMER SCIENCE, 1997, 22 (07) : 1431 - 1502
  • [34] Biodegradable liquid-crystalline aromatic polyesters
    Kricheldorf, HR
    Wahlen, L
    Stukenbrook, T
    MACROMOLECULAR SYMPOSIA, 1998, 130 : 261 - 270
  • [35] Interdiffusion of thermotropic liquid crystalline and thermoplastic polyesters
    McClain, K.E.
    Ogale, A.A.
    Journal of Advanced Materials, 2004, 36 (03): : 51 - 55
  • [36] Liquid-crystalline polyesters based on dibenzalidenecycloalkanones
    Khimich, GN
    Ten'kovtsev, AV
    Matveeva, GN
    Bilibin, AY
    VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B, 1999, 41 (02): : 209 - 216
  • [37] Investigations on liquid crystalline polysiloxanes 3 - Liquid crystalline elastomers - A new type of liquid crystalline material
    Finkelmann, H
    Kock, HJ
    Rehage, G
    MACROMOLECULAR RAPID COMMUNICATIONS, 2005, 26 (09) : 667 - 672
  • [38] Structural Analysis of Aromatic Liquid Crystalline Polyesters
    Hall, Henry
    Ahad, Samiul
    Bates, Robert
    Bertucci, Maria
    Contreras, Cristina
    Dospinoiu, Alexandru
    Lin, Guangxin
    Singletary, Nancy
    Somogyi, Arpad
    POLYMERS, 2011, 3 (01): : 367 - 387
  • [39] PARENT HOMOPOLYMERS OF LIQUID-CRYSTALLINE POLYESTERS
    COULTER, PD
    HANNA, S
    WINDLE, AH
    LIQUID CRYSTALS, 1989, 5 (05) : 1603 - 1618
  • [40] CHEMICAL HETEROGENEITY IN LIQUID-CRYSTALLINE POLYESTERS
    OBER, CK
    MCNAMEE, S
    DELVIN, A
    COLBY, RH
    ACS SYMPOSIUM SERIES, 1990, 435 : 220 - 240