Partially deuterated side-chain liquid crystalline monomers and polymers:: characterization and order by 2H NMR

被引：4

作者：

Catalanoa, D ^{[1
]}

Chiellini, E

Chiezzi, L

Fodor-Csorba, K

Galli, G

Gács-Baitz, E

Holly, S

Veracini, CA

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

[2] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

[3] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1999年 / 336卷

关键词：

deuterated liquid crystal; H-2; NMR; order parameter; biaxiality;

D O I：

10.1080/10587259908026025

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Two partially deuterated liquid crystalline monomers 1, 2 and side-chain polymers 3, 4 therefrom were synthesized. The principal order parameter and biaxiality of the monomers were determined from their H-1 and H-2 NMR spectra. The H-2 orientational order of the polymers was also evaluated, which showed the coexistence of different phases over certain ranges of temperature.

引用

页码：111 / 122

页数：12

共 6 条

[1]

BOFFEL C, 1989, LIQUID CRYSTAL POLYM, P224

[2] CHIRAL LIQUID-CRYSTALLINE POLYMERS - RECENT TRENDS AND PERSPECTIVES IN SYNTHESIS AND ELECTROOPTICAL APPLICATIONS [J].

CHIELLINI, E ;

GALLI, G .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1994, 254 :17-36

[3]

EMSLEY JW, 1996, LIQ CRYST, V21, P872

[4] Synthesis of liquid crystals containing chlorine on the chiral center [J].

FodorCsorba, K ;

Vajda, A ;

Bata, L ;

Holly, S ;

GacsBaitz, E ;

Ujszaszy, K ;

Lee, JC ;

Jeon, YJ .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1995, 265 :97-109

[5] H-2 NMR-STUDY OF PHASE-TRANSITIONS AND ORIENTATIONAL ORDER IN A SIDE-CHAIN LIQUID-CRYSTAL POLYMER - EVIDENCE OF A NEMATIC-NEMATIC TRANSITION [J].

MUZZALUPO, R ;

RANIERI, GA ;

CATALANO, D ;

GALLI, G ;

VERACINI, CA .

LIQUID CRYSTALS, 1995, 19 (03) :367-371

[6]

VERACINI CA, 1985, NUCL MAGN RESON, P99

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