KERR-EFFECT MEASUREMENTS ON POLY(VINYLIDINE FLUORIDE), POLY(METHYL METHACRYLATE) AND THEIR BLENDS

被引：6

作者：

HARTIG, C ^{[1
]}

KLEPPINGER, R ^{[1
]}

JUNGNICKEL, BJ ^{[1
]}

机构：

[1] DEUTSCH KUNSTSTOFF INST DARMSTADT,D-64289 DARMSTADT,GERMANY

来源：

POLYMER | 1995年 / 36卷 / 24期

关键词：

POLY(VINYLIDENE FLUORIDE); POLY(METHYL NETHACRYLATE); KERR EFFECT;

D O I：

10.1016/0032-3861(95)96823-Q

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 dynamic electro-optical effect of poly(vinylidene fluoride) (PVDF), poly(methyl methacrylate) (PMMA) and their blends is reported. The response of PMMA exhibited one detectable relaxation in the vicinity of the glass transition, the time constant of which revealed that it is due to side-chain rotation. In contrast, two relaxations were detected in the PVDF melt. From the strength of the faster, the orientation correlation coefficients g(1) and g(2) can be calculated to be 0.5 and 15, respectively, indicating an antiparallel arrangement of the individual electric moments of the monomer units. The slow relaxation is suggested to be due to weakening of these correlations by the action of electric-field-injected charges. The kinetics of that distortion are enhanced by blending with PMMA, whereas the other relaxations of both components do not change with blending.

引用

页码：4553 / 4559

页数：7

共 24 条

[1] MOLECULAR-MOTION IN MELT SAMPLES OF POLY(PROPYLENE GLYCOL) STUDIED USING DIELECTRIC AND KERR EFFECT RELAXATION TECHNIQUES [J].

BEEVERS, MS ;

ELLIOTT, DA ;

WILLIAMS, G .

POLYMER, 1980, 21 (01) :13-20

[2]

BIEHLER E, 1987, IEEE T ELECTR INS, V22, P207

[3]

COOPER DE, 1980, IEEE T ELECTR INS, V3, P294

[4]

DETTENMAIER M, 1979, PROG COLLOID POLYM S, V66, P169

[5]

Flory P.J., 1969, STAT MECH CHAIN MOL, V8, P699

[6]

FREDERICQ E, 1979, ELECTRIC DICHROISM E

[7] THERMODYNAMICAL EXPECTATION VALUES IN RESTRAINED EQUILIBRIA, DIELECTRICAL AND ELECTRO-OPTICAL RELAXATION STRENGTHS, AND THE KERR EFFECT OF PMMA [J].

GALLENKAMP, U ;

JUNGNICKEL, BJ .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1989, 93 (05) :585-593

[8]

HEDWIG P, 1977, EIELECTRIC SPECTROSC

[9]

HELLWEGE KH, 1967, LANDOLTBORNSTEIN ZAH

[10]

JUNGNICKEL BJ, 1991, CHEM PHYSICS MACROMO

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