MAGNETIC-ANISOTROPY AND POLYMORPHISM IN LIQUID-CRYSTALS

被引：24

作者：

HARDOUIN, F ^{[1
]}

ACHARD, MF ^{[1
]}

SIGAUD, G ^{[1
]}

GASPAROUX, H ^{[1
]}

机构：

[1] CNRS,CTR RECH PAUL PASCAL,F-33405 TALENCE,FRANCE

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1977年 / 39卷 / 3-4期

关键词：

D O I：

10.1080/00268947708084405

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Diamagnetic measurements are presented for two series of Schiff's bases: p-pentoxybenzilidene alkylaniline ( ″50 m″ ) and p-alcoxybenzilidene butylaniline ( ″n04″ ). An even odd effect is revealed at the isotropic-nematic as well as at the nematic-smectic A transitions. the results are interpreted in terms of molecular theories in the case of nematic-smectic A and smectic A-smectic C transitions. Some assumptions are made on the structure of smectic phases from the magnetic behavior. At last a comparison is established between the magnetic evolution and the transitional enthalpies for the various smectic phase changes.

引用

页码：241 / 257

页数：17