ROLE OF END CHAINS IN THE REENTRANT BEHAVIOR OF A NONPOLAR SYSTEM

被引：9

作者：

BOSE, TR ^{[1
]}

GHOSE, D ^{[1
]}

MUKHERJEE, CD ^{[1
]}

SAHA, J ^{[1
]}

ROY, MK ^{[1
]}

SAHA, M ^{[1
]}

机构：

[1] SCOTTISH CHURCH COLL, Kolkata 700006, INDIA

来源：

PHYSICAL REVIEW A | 1991年 / 43卷 / 08期

关键词：

D O I：

10.1103/PhysRevA.43.4372

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we propose to estimate the role of chain conformations in bringing about reentrant polymorphism in a nonpolar sample of mesogens. To this end we also show that the reentrant phenomenon is built in the McMillan model, if one explicitly incorporates the effect of tail-chain conformations in the molecular potential instead of treating the chains as an extension of the rigid part. The model is next utilized to predict the single reentrance I-N-Sm-N(re) with lowering of temperature in a nonpolar system.

引用

页码：4372 / 4377

页数：6

共 47 条

[1] REENTRANT NEMATIC AND SMECTIC-A PHASES - THE DIELECTRIC APPROACH [J].

BENGUIGUI, L ;

HARDOUIN, F .

JOURNAL DE PHYSIQUE LETTRES, 1981, 42 (05) :L111-L113

[2] FRUSTRATED SPIN-GAS MODEL FOR DOUBLY REENTRANT LIQUID-CRYSTALS [J].

BERKER, AN ;

WALKER, JS .

PHYSICAL REVIEW LETTERS, 1981, 47 (20) :1469-1472

[3] THE MOLECULAR STRUCTURES OF NORMAL-PENTANE, NORMAL-HEXANE AND NORMAL-HEPTANE [J].

BONHAM, RA ;

BARTELL, LS ;

KOHL, DA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1959, 81 (18) :4765-4769

[4] A MEAN FIELD MODEL FOR REENTRANT POLYMORPHISM [J].

BOSE, TR ;

GHOSE, D ;

ROY, MK ;

SAHA, M ;

MUKHERJEE, CD .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1989, 172 :1-16

[5] A MEAN FIELD-THEORY OF REENTRANT PHASES IN SOME BINARY-MIXTURES OF POLAR AND NONPOLAR COMPOUNDS [J].

BOSE, TR ;

GHOSH, D ;

ROY, MK ;

SAHA, M ;

MUKHERJEE, CD .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1987, 142 (1-4) :41-54

[6] A MOLECULAR MEAN FIELD-THEORY OF REENTRANT PHASES [J].

BOSE, TR ;

MUKHERJEE, CD ;

ROY, MK ;

SAHA, M .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1985, 126 (2-4) :197-209

[7]

Bowen H.J.M., 1958, TABLES INTERATOMIC D

[8] A 100 YEAR PERSPECTIVE OF THE REENTRANT NEMATIC PHASE [J].

CLADIS, PE .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1988, 165 :85-121

[9] NEW LIQUID-CRYSTAL PHASE-DIAGRAM [J].

CLADIS, PE .

PHYSICAL REVIEW LETTERS, 1975, 35 (01) :48-51

[10] REENTRANT PHASES OF 4-RING AROMATIC ESTERS [J].

DABROWSKI, R ;

PYC, K ;

PRZEDMOJSKI, J ;

PURA, B .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1985, 129 (1-3) :169-190

← 1 2 3 4 5 →