Structure and mechanical properties of liquid crystalline filaments -: art. no. 031705

被引：24

作者：

Eremin, A

Nemes, A

Stannarius, R

Schulz, M

Nádasi, H

Weissflog, W

机构：

[1] Univ Magdeburg, FNW, IEP, ANP, D-39016 Magdeburg, Germany

[2] LKA Sachsen Anhalt, D-39028 Magdeburg, Germany

[3] Univ Halle Wittenberg, Inst Phys Chem, D-06108 Halle An Der Saale, Saale, Germany

来源：

PHYSICAL REVIEW E | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.71.031705

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The formation of stable freely suspended filaments is an interesting peculiarity of some liquid crystal phases. So far, little is known about their structure and stability. Similarly to free-standing smectic films, an internal molecular structure of the mesophase stabilizes these macroscopically well-ordered objects with length to diameter ratios of 10(3) and above. In this paper, we report observations of smectic liquid crystal fibers formed by bent-shaped molecules in different mesophases. Our study, employing several experimental techniques, focuses on mechanical and structural aspects of fiber formation such as internal structure, stability, and mechanical and optical properties.

引用

页数：5

共 23 条

[1] Evidence for different polymorphisms with and without an external electric field in a series of bent-shaped molecules [J].

Bedel, J.P. ;

Rouillon, J.C. ;

Marcerou, J.P. ;

Nguyen, H.T. ;

Achard, M.F. .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2004, 69 (6 1) :061702-1

[2] Capillary instabilities in thin nematic liquid crystalline fibers [J].

Cheong, A.-G. ;

Rey, A.D. ;

Mather, P.T. .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2001, 64 (4 I) :417011-417011

[3] Polarization-modulated smectic liquid crystal phases [J].

Coleman, DA ;

Fernsler, J ;

Chattham, N ;

Nakata, M ;

Takanishi, Y ;

Körblova, E ;

Link, DR ;

Shao, RF ;

Jang, WG ;

Maclennan, JE ;

Mondainn-Monval, O ;

Boyer, C ;

Weissflog, W ;

Pelzl, G ;

Chien, LC ;

Zasadzinski, J ;

Watanabe, J ;

Walba, DM ;

Takezoe, H ;

Clark, NA .

SCIENCE, 2003, 301 (5637) :1204-1211

[4] Experimental evidence for Sm-CG→Sm-CP polymorphism in fluorinated bent-shaped mesogens -: art. no. 021702 [J].

Eremin, A ;

Diele, S ;

Pelzl, G ;

Nádasi, H ;

Weissflog, W .

PHYSICAL REVIEW E, 2003, 67 (02) :8-217028

[5] Structural characterization of the new polymorphic mesophases formed by bent-core molecules [J].

Eremin, A ;

Wirth, I ;

Diele, S ;

Pelzl, G ;

Schmalfuss, H ;

Kresse, H ;

Nádasi, H ;

Fodor-Csorba, K ;

Gács-Baitz, E ;

Weissflog, W .

LIQUID CRYSTALS, 2002, 29 (06) :775-782

[6]

Jákli A, 2000, LIQ CRYST, V27, P1405, DOI 10.1080/026782900750018546

[7] Liquid crystal fibers of bent-core molecules -: art. no. 051702 [J].

Jákli, A ;

Krüerke, D ;

Nair, GG .

PHYSICAL REVIEW E, 2003, 67 (05) :6-051702

[8] A bent-shape liquid crystal compound with antiferroelectric triclinic-monoclinic phase transition [J].

Jákli, A ;

Nair, GG ;

Sawade, H ;

Heppke, G .

LIQUID CRYSTALS, 2003, 30 (03) :265-271

[9] Evidence for triclinic symmetry in smectic liquid crystals of bent-shape molecules [J].

Jákli, A ;

Krüerke, D ;

Sawade, H ;

Heppke, G .

PHYSICAL REVIEW LETTERS, 2001, 86 (25) :5715-5718

[10] Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules [J].

Link, DR ;

Natale, G ;

Shao, R ;

Maclennan, JE ;

Clark, NA ;

Korblova, E ;

Walba, DM .

SCIENCE, 1997, 278 (5345) :1924-1927

← 1 2 3 →