MOLECULAR ADDRESSING - STUDIES ON LIGHT-INDUCED REORIENTATION IN LIQUID-CRYSTALLINE SIDE-CHAIN POLYMERS

被引：160

作者：

ANDERLE, K ^{[1
]}

BIRENHEIDE, R ^{[1
]}

WERNER, MJA ^{[1
]}

WENDORFF, JH ^{[1
]}

机构：

[1] DEUTSCH KUNSTSTOFF INST DARMSTADT,W-6100 DARMSTADT,GERMANY

来源：

LIQUID CRYSTALS | 1991年 / 9卷 / 05期

关键词：

D O I：

10.1080/02678299108030382

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polarized light leads to an effective reorientation of the optic axis in the glassy state of liquid-crystalline side chain polymers containing azobenzene mesogenic groups, via a trans-cis and cis-trans isomerization. Using a combination of UV and IR dichroitic studies it is shown for copolymers consisting of chromophores (azobenzene) and non-chromophores (phenylbenzoate) that only the chromophores are reoriented by light as far as the glassy state is concerned. Individual chromophores are thus addressed by photoselection. Photoselection in the fluid nematic state, on the other hand, leads also to a reorientation of the non-chromophores.

引用

页码：691 / 699

页数：9

共 21 条

[11] EICH M, 1986, 17 P FREIB ARB FLUSS
[12] EICH M, 1987, Patent No. 3603268
[13] ORDER PARAMETERS OF DYES IN A BIPHENYL-TERPHENYL LIQUID-CRYSTAL MIXTURE
JONES, F
REEVE, TJ
[J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1980, 60 (1-2): : 99 - 110
[14] MAKUSHENKO AM, 1971, OPT SPEKTROSK, V31, P557
[15] LASER ADDRESSED THERMOOPTIC EFFECT IN A NOVEL DYED LIQUID-CRYSTALLINE POLYSILOXANE
MCARDLE, CB
CLARK, MG
HAWS, CM
WILTSHIRE, MCK
PARKER, A
NESTOR, G
GRAY, GW
LACEY, D
TOYNE, KJ
[J]. LIQUID CRYSTALS, 1987, 2 (05) : 573 - 584
[16] THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS IN ELECTRIC AND MAGNETIC-FIELDS
PLATE, NA
TALROZE, RV
SHIBAEV, VP
[J]. PURE AND APPLIED CHEMISTRY, 1984, 56 (03) : 403 - 416
[17] STOLBOVA OV, 1963, SOV PHYS DOKL, V8, P275
[18] ON MEASURING THE DISTRIBUTION OF LOCAL FREE-VOLUME IN GLASSY-POLYMERS BY PHOTOCHROMIC AND FLUORESCENCE TECHNIQUES
VICTOR, JG
TORKELSON, JM
[J]. MACROMOLECULES, 1987, 20 (09) : 2241 - 2250
[19] WIESNER U, 1990, MAY M POLYM LICHT GR
[20] SITE-SPECIFIC LABELING AND THE DISTRIBUTION OF FREE-VOLUME IN GLASSY POLYSTYRENE
YU, WC
SUNG, CSP
ROBERTSON, RE
[J]. MACROMOLECULES, 1988, 21 (02) : 355 - 364

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