Synthesis and mesomorphic properties of novel banana-shaped liquid crystal compounds containing methyl-group in the central fragment

被引：0

作者：

Galatina, AI ^{[1
]}

Novikova, NS ^{[1
]}

Yarkova, MY ^{[1
]}

Panikarskaya, VD ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, AV Bogatsky Physicochem Inst, UA-65080 Odessa, Ukraine

来源：

XV CONFERENCE ON LIQUID CRYSTALS | 2003年 / 5565卷

关键词：

synthesis; 4-methyl-1; 3-benzenedicarbonic acid ester; mesophase; method; investigation;

D O I：

10.1117/12.581070

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The novel banana-shaped liquid crystal materials namely 4-methyl-1,3-benzenedicarbonic acid esters have been synthesized and their mesomorphic properties have been studied. The differential scanning calorimeter investigation showed that these compounds decomposed at temperature above 200degreesC, so the thermograph measurements in regime of cooling from isotropic liquid have not made. Data of polarizing microscopy show that all prepared compounds are mesomorphic and form mesophase in narrow temperature interval, which have not identified.

引用

页码：37 / 40

页数：4

共 9 条

[1] NEW CHIRAL POLYSILOXANES PREPARED FROM DERIVATIVES OF (+)-2-PHENYL-3-BUTENOIC OR (-)-2-PHENYL-3-BUTENOIC ACID, (R)-1-HEPTEN-3-OL AND (R)-1-CYCLOHEXYL-2-PROPEN-1-OL [J].

AGGARWAL, SK ;

BRADSHAW, JS ;

EGUCHI, M ;

PARRY, S ;

ROSSITER, BE ;

MARKIDES, KE ;

LEE, ML .

TETRAHEDRON, 1987, 43 (03) :451-462

[2] Novel mesophases in fluorine substituted banana-shaped mesogens [J].

Bedel, JP ;

Rouillon, JC ;

Marcerou, JP ;

Laguerre, M ;

Nguyen, HT ;

Achard, MF .

LIQUID CRYSTALS, 2000, 27 (11) :1411-1421

[3] New banana-shaped mesogens with bromine-substituted central core [J].

Dehne, H ;

Pötter, M ;

Sokolowski, S ;

Weissflog, W ;

Diele, S ;

Pelzl, G ;

Wirth, I ;

Kresse, H ;

Schmalfuss, H ;

Grande, S .

LIQUID CRYSTALS, 2001, 28 (08) :1269-1277

[4] CHEMISTRY OF BASE-CATALYZED CONDENSATION OF SOME 3 -ALKOXY-2-DIALKOXYMETHYL AND 3-ALKOXY-2-DIALKOXYMETHYL ESTERS WITH UREAS - SYNTHESIS OF 5-SUBSTITUTED URACILS [J].

FISSEKIS, JD ;

SWEET, F .

JOURNAL OF ORGANIC CHEMISTRY, 1973, 38 (11) :1963-1970

[5]

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

[6]

MALINOVSKIY MS, 1949, ZURNAL OBSHEY KHIMII, V21, P2088

[7]

PALZL BG, 1999, ADV MATER, V1, P707

[8] Effect of lateral substituents on the mesophases formed by some achiral banana-shaped molecules [J].

Sadashiva, BK ;

Murthy, HNS ;

Dhara, S .

LIQUID CRYSTALS, 2001, 28 (03) :483-487

[9] Effect of chemical structure on the liquid crystallinity of banana-shaped molecules [J].

Thisayukta, J ;

Nakayama, Y ;

Watanabe, J .

LIQUID CRYSTALS, 2000, 27 (09) :1129-1135

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