Measurement of the interfacial tension between coexisting isotropic and nematic phases of a lyotropic polymer liquid crystal

被引：24

作者：

Chen, WL ^{[1
]}

Sato, T ^{[1
]}

Teramoto, A ^{[1
]}

机构：

[1] OSAKA UNIV,DEPT MACROMOLEC SCI,TOYONAKA,OSAKA 560,JAPAN

来源：

MACROMOLECULES | 1996年 / 29卷 / 12期

关键词：

D O I：

10.1021/ma951832y

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The interfacial tension and molecular alignment were studied for the interface between coexisting isotropic and nematic phases of a toluene solution of poly(n-hexyl isocyanate). A polarizing microscopic observation revealed that the nematic phase in the vicinity of the interface is aligned homogeneously, i.e., the director is parallel to the interface, consistent with the prediction of Doi and Kuzuu for rodlike polymer solutions. The value of the interfacial tension is 0.024 dyn/cm, as compared with the theoretical value (=0.011 dyn/cm).

引用

页码：4283 / 4286

页数：4

共 30 条

[11] INTRINSIC-VISCOSITY OF POLY(HEXYL ISOCYANATE) IN BUTYL CHLORIDE [J].

KUWATA, M ;

MURAKAMI, H ;

NORISUYE, T ;

FUJITA, H .

MACROMOLECULES, 1984, 17 (12) :2731-2734

[12] MOLECULAR ORDER AND SURFACE-TENSION FOR NEMATIC-ISOTROPIC INTERFACE OF MBBA, DEDUCED FROM LIGHT REFLECTIVITY AND LIGHT-SCATTERING MEASUREMENTS [J].

LANGEVIN, D ;

BOUCHIAT, MA .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1973, 22 (3-4) :317-331

[13]

LANGHAMM.G, 1965, MAKROMOLEKUL CHEM, V88, P179

[14] DIMENSIONAL AND HYDRODYNAMIC PROPERTIES OF POLY(HEXYL ISOCYANATE) IN HEXANE [J].

MURAKAMI, H ;

NORISUYE, T ;

FUJITA, H .

MACROMOLECULES, 1980, 13 (02) :345-352

[15] INTERFACIAL-TENSION OF DEMIXED POLYSTYRENE-METHYLCYCLOHEXANE SOLUTION [J].

NOSE, T ;

VANTAN, T .

JOURNAL OF POLYMER SCIENCE PART C-POLYMER LETTERS, 1976, 14 (12) :705-712

[16] INTERFACIAL-TENSION OF OLIGOSTYRENE/OLIGO(DIMETHYLSILOXANE) NEAR THE CRITICAL-POINT [J].

NOSE, T .

MACROMOLECULES, 1995, 28 (10) :3702-3706

[17] THEORY OF LYOTROPIC POLYMER LIQUID-CRYSTALS [J].

ODIJK, T .

MACROMOLECULES, 1986, 19 (09) :2313-2329

[18] THE EFFECTS OF SHAPE ON THE INTERACTION OF COLLOIDAL PARTICLES [J].

ONSAGER, L .

ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1949, 51 (04) :627-659

[19] DETERMINATION OF SURFACE-TENSION AND CONTACT-ANGLE FROM THE SHAPES OF AXISYMMETRIC FLUID INTERFACES [J].

ROTENBERG, Y ;

BORUVKA, L ;

NEUMANN, AW .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1983, 93 (01) :169-183

[20]

SANCHEZ IC, 1992, PHYSICS POLYM SURFAC

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