REORIENTATIONAL MOTIONS OF DIPOLAR SOLUTES IN GLASSY ORTHO-TERPHENYL

被引：16

作者：

CROSSLEY, J ^{[1
]}

GOURLAY, D ^{[1
]}

RUJIMETHABHAS, M ^{[1
]}

TAY, SP ^{[1
]}

WALKER, S ^{[1
]}

机构：

[1] LAKEHEAD UNIV,DEPT CHEM,THUNDER BAY P7B 5E1,ONTARIO,CANADA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1979年 / 71卷 / 10期

关键词：

DIELECTRIC PROPERTIES; GLASS; MOLECULES; ORIENTATION; RELAXATION; ROTATION; TERPHENYL−ORTHO;

D O I：

10.1063/1.438179

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The low frequency (102–105 Hz) dielectric relaxation behavior of small dipolar molecules dispersed in supercooled o-terphenyl has been studied below the glass transition temperature. Broad asymmetric loss curves are obtained for both rigid and nonrigid solute molecules. The relaxation times and Eyring activation enthalpies for molecular and intramolecular group reorientation processes are compared with the analogous values for the same solutes in a polystyrene matrix. © 1979, American Institute of Physics. All rights reserved.

引用

页码：4095 / 4098

页数：4

共 15 条

[1] MOLECULAR-DYNAMICS OF VISCOUS-LIQUIDS - COMPARISON OF DIELECTRIC AND KERR-EFFECT RELAXATION FOR TRITOLYL PHOSPHATE, ORTHO-TERPHENYL AND THEIR MIXTURES [J].

BEEVERS, MS ;

CROSSLEY, J ;

GARRINGTON, DC ;

WILLIAMS, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1977, 73 :458-470

[2] DIELECTRIC-RELAXATION IN 2-ACETYLNAPHTHALENE AND RELATED COMPOUNDS [J].

CROSSLEY, J ;

MAZID, MA ;

MCLELLAN, CK ;

MOUNTAIN, PF ;

WALKER, S .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1978, 56 (04) :567-573

[3] STERICALLY HINDERED ACETYL GROUP RELAXATION IN 4 AROMATIC-COMPOUNDS [J].

CROSSLEY, J ;

MAZID, MA ;

MCLELLAN, CK ;

MOUNTAIN, PF ;

WALKER, S .

ADVANCES IN MOLECULAR RELAXATION AND INTERACTION PROCESSES, 1978, 12 (03) :239-250

[4] DIELECTRIC STUDIES OF CONFIGURATIONAL CHANGES IN CYCLOHEXANE AND THIANTHRENE STRUCTURES [J].

DAVIES, M ;

SWAIN, J .

TRANSACTIONS OF THE FARADAY SOCIETY, 1971, 67 (582) :1637-&

[5] MICROWAVE ABSORPTION AND MOLECULAR STRUCTURE IN LIQUIDS .50. DIELECTRIC RELAXATION OF SEVERAL SUBSTITUTED NAPHTHALENES AND 4-ACETYL-O-TERPHENYL [J].

FONG, FK ;

SMYTH, CP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1963, 85 (05) :548-&

[6]

Fuoss R.M., 1941, J AM CHEM SOC, V63, P385, DOI [DOI 10.1021/JA01847A013, 10.1021/ja01847a013]

[7] GLASS-TRANSITION AND SECONDARY RELAXATIONS IN MOLECULAR LIQUIDS AND CRYSTALS [J].

JOHARI, GP .

ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1976, 279 (OCT15) :117-140

[8]

McCrum N.G., 1967, ANELASTIC DIELECTRIC, DOI DOI 10.1002/POL.1969.160070416

[9] ACETYL GROUP RELAXATION IN 4 AROMATIC KETONES [J].

MCLELLAN, CK ;

WALKER, S .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1977, 55 (04) :583-587

[10] DIELECTRIC-RELAXATION AND MOLECULAR-STRUCTURE .11. DIELECTRIC BEHAVIOR OF VARIOUS POLAR-MOLECULES IN SUPERCOOLED ORTHO-TERPHENYL SOLUTION [J].

NAKAMURA, M ;

TAKAHASH.H ;

HIGASI, K .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1974, 47 (07) :1593-1595

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