ANISOTROPIC SOLUTIONS OF CELLULOSE-ACETATE IN TRIFLUOROACETIC-ACID - PROOF OF CHOLESTERIC ORDER BY CIRCULAR-DICHROISM

被引：13

作者：

LEMATRE, J ^{[1
]}

DAYAN, S ^{[1
]}

SIXOU, P ^{[1
]}

机构：

[1] LAB PHYS MAT CONDENSEE,F-06034 NICE,FRANCE

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1982年 / 84卷 / 1-4期

关键词：

D O I：

10.1080/00268948208072146

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mesomorphic solutions of cellulose acetate in trifluoroacetic acid show a strong circular dichroism. This effect is related to the cholesteric structure of the solution. The effects of change in temperature and polymer concentration are investigated. The transition from an isotropic to an anisotropic phase can be studied either directly or indirectly by the introduction of an achiral dye into the solution.

引用

收藏

页码：267 / 273

页数：7

相关论文

共 29 条

[1] RIGID BACKBONE POLYMERS .3. PARTITIONING OF ISOCYANATE POLYMERS BETWEEN ISOTROPIC AND ANISOTROPIC PHASES [J].

AHARONI, SM ;

WALSH, EK .

JOURNAL OF POLYMER SCIENCE PART C-POLYMER LETTERS, 1979, 17 (05) :321-327

[2] RIGID BACKBONE POLYMERS .2. POLYISOCYANATES AND THEIR LIQUID-CRYSTAL BEHAVIOR [J].

AHARONI, SM .

MACROMOLECULES, 1979, 12 (01) :94-103

[3] RIGID BACKBONE POLYMERS .10. TRANSITIONS IN BULK POLYISOCYANATES [J].

AHARONI, SM .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1980, 18 (06) :1303-1310

[4] RIGID BACKBONE POLYMERS .13. EFFECTS OF THE NATURE OF THE SOLVENT ON THE LYOTROPIC MESOMORPHICITY OF CELLULOSE-ACETATE [J].

AHARONI, SM .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1980, 56 (07) :237-241

[5]

ARPIN M, 1979, THESIS STRASBOURG

[6]

DAYAN S, 1981, 11TH EUR PHYS MACR P

[7]

DAYAN S, UNPUB

[8] ROTATORY POWER AND OTHER OPTICAL PROPERTIES OF CERTAIN LIQUID CRYSTALS [J].

DEVRIES, H .

ACTA CRYSTALLOGRAPHICA, 1951, 4 (03) :219-226

[9] CHOLESTERIC ANALOG PACKING OF COLLAGEN FIBRILS IN THE CUVIERIAN TUBULES OF HOLOTHURIA-FORSKALI (HOLOTHUROIDEA, ECHINODERMATA) [J].

DLUGOSZ, J ;

GATHERCOLE, LJ ;

KELLER, A .

MICRON, 1979, 10 (02) :81-87

[10] STATISTICAL THERMODYNAMICS OF SEMI-FLEXIBLE CHAIN MOLECULES [J].

FLORY, PJ .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1956, 234 (1196) :60-73