POLYAMIDE-TYPE HIGH PRETILT SURFACE - EFFECT OF SIDE-CHAIN STRUCTURE AND TYPE OF LIQUID-CRYSTALS ON THE GENERATION OF PRETILT ANGLE

被引：5
|
作者：
NOH, SH [1 ]
ARAKI, K [1 ]
SUGITANI, Y [1 ]
SENO, M [1 ]
机构：
[1] UNIV TOKYO,INST IND SCI,MINATO KU,TOKYO 106,JAPAN
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 241卷
关键词：
N-ARALKYLATED PPTA; LIQUID CRYSTAL ALIGNMENT FILM; PRETILT ANGLE GENERATION; SIDE CHAIN STRUCTURE;
D O I：
10.1080/10587259408029752
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Highly N-aralkylated poly(p-phenylene terephthalamide) (PPTA) with various substituents having benzyl units in their structures were synthesized in a high yield, and their properties as a liquid crystal alignment film were studied. Good liquid crystal alignment and pretilt angles of 0.5 to 8.1 deg were observed on the spin-coated polymer films after rubbing when a nematic liquid crystal, ZLI-2293 was used. The induced pretilt angle showed no correlation with the surface-free energy of the polymer film, but was strongly dependent on the structure of the side chain. The effects of the structural difference of the side chain and type of liquid crystals are discussed in more detail.
引用
收藏
页码：159 / 166
页数：8
相关论文
共 33 条
  • [21] EFFECT OF HIGH PRETILT ANGLE FOR ANCHORING STRENGTH IN NEMATIC LIQUID-CRYSTAL ON RUBBED POLYIMIDE SURFACE CONTAINING TRIFLUOROMETHYL MOIETIES
    SEO, DS
    KOBAYASHI, S
    APPLIED PHYSICS LETTERS, 1995, 66 (10) : 1202 - 1204
  • [22] POLYMERIZATION OF LIQUID-CRYSTALS .17. EFFECT OF THE SUBSTITUENTS OF THE MESOGENIC SIDE-CHAIN ON THE PROPERTIES OF MESOGENIC POLYMERS
    HORVATH, J
    NYITRAI, K
    CSER, F
    HARDY, G
    MAGYAR KEMIAI FOLYOIRAT, 1984, 90 (06): : 270 - 280
  • [23] PHASE STUDIES OF LIQUID-CRYSTALLINE SIDE-CHAIN POLYMERS MIXED WITH LOW MOLAR MASS LIQUID-CRYSTALS OF SIMILAR STRUCTURE
    FINKELMANN, H
    KOCK, HJ
    REHAGE, G
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1982, 89 (1-4): : 23 - 36
  • [24] Physical properties of a side-chain type polysiloxane liquid-crystalline polymer with electrorheological effect
    Tajiri, Kozo
    Sugaya, Masaru
    Nagaya, Tomoyuki
    Orihara, Hiroshi
    Ishibashi, Yoshihiro
    Doi, Masao
    Inoue, Akio
    Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 1997, 299 (pt 1): : 205 - 210
  • [25] The physical properties of a side-chain type polysiloxane liquid-crystalline polymer with electrorheological effect
    Tajiri, K
    Sugaya, M
    Nagaya, T
    Orihara, H
    Ishibashi, Y
    Doi, M
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1997, 299 : 205 - 210
  • [26] EFFECT OF THE LENGTH AND STRUCTURE OF THE SIDE-CHAIN OF SOLUBLE COPOLYMERS OF THE METHACRYLAMIDE TYPE ON THE MOBILITY OF THE SPIN LABEL BONDED TO THE CHAIN END
    LABSKY, J
    PILAR, J
    KALAL, J
    JOURNAL OF POLYMER SCIENCE PART C-POLYMER SYMPOSIUM, 1979, (66): : 33 - 40
  • [27] Generation of pretilt angle of liquid crystals aligned on organic-solvent-soluble polyimide alignment films for active-matrix TN-LCDs and its mechanism caused by the micro-surface structure of surfaces
    Nishikawa, M
    Miyamoto, T
    Kawamura, S
    Bessho, N
    Iimura, Y
    Kobayashi, S
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1995, 259 : 93 - 100
  • [28] Effect of side-chain structure of Polycarboxylic Acid type Water-reducer on Hydration of C3A
    Zhu, Yanchao
    Ma, Baoguo
    Tan, Hongbo
    ADVANCES IN CHEMICAL ENGINEERING II, PTS 1-4, 2012, 550-553 : 807 - 812
  • [29] Double Ordered Layers within Microphase-separated Lamellar Structure of Double Liquid Crystalline Side-chain Type Block Copolymer
    Maeda, Rina
    Hayakawa, Teruaki
    Tokita, Masatoshi
    Kakimoto, Masa-aki
    Urushibata, Hiroaki
    CHEMISTRY LETTERS, 2008, 37 (11) : 1174 - 1175
  • [30] Side-chain liquid-crystalline poly(ketone)s:: effect of spacer length, mesogen type and mesogen density on mesomorphic behavior
    Nieuwhof, RP
    Marcelis, ATM
    Sudhölter, EJR
    Wursche, R
    Rieger, B
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 2000, 201 (17) : 2484 - 2492
1234