INVESTIGATION OF AXIAL DENSITY MODULATIONS OF CORE FIBRILS BY INTERFACE DISTRIBUTION-FUNCTIONS

被引：8

作者：

FIEDEL, HW ^{[1
]}

SCHOLLER, T ^{[1
]}

PETERMANN, J ^{[1
]}

WENIG, W ^{[1
]}

机构：

[1] TECH UNIV HAMBURG HARBURG,ARBEITSBEREICH KUNSTSTOFFVERARBEITUNG,D-2000 HAMBURG,FED REP GER

来源：

COLLOID AND POLYMER SCIENCE | 1986年 / 264卷 / 12期

关键词：

CRYSTALS - Defects - POLYBUTENE - Crystallization - POLYPROPYLENE - Crystallization - X-RAY ANALYSIS - Calculations;

D O I：

10.1007/BF01410319

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 axial density modulation of core-fibrils in polypropylene and poly (1-butene) crystallized from the oriented melt has been investigated by calculating interface distribution functions of the small angle x-ray scattering. The density modulation along the fiber axis originates from the migration of chain defects in the early stages of crystallization in the shear-field. The lengths of the needle crystals are approximately three times higher than those of the distorted zones. The values of the interface lengths between crystals and zones of lower electron density, are matching well with the lengths of the distorted zones. This result confirms the concept of defect clustering.

引用

页码：1017 / 1023

页数：7

共 20 条

[1] CRYSTALLINE MORPHOLOGY IN THIN FILMS OF NATURAL RUBBER .2. CRYSTALLIZATION UNDER STRAIN [J].

ANDREWS, EH .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1964, 277 (1370) :562-+

[2] STRUCTURE-PROPERTY RELATIONSHIPS IN A POLYMER [J].

ANDREWS, EH .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1974, 13 (02) :113-121

[3] STRAIN INDUCED ORIENTED POLYMER BLENDING - MORPHOLOGY-PROPERTY RELATIONSHIP IN POLYETHYLENE-POLYBUTENE-1 SYSTEMS [J].

GOHIL, RM ;

PETERMANN, J .

COLLOID AND POLYMER SCIENCE, 1982, 260 (03) :312-318

[4] DIFFUSION-CONTROLLED GROWTH OF LAMELLAR CRYSTALS IN AN ISOTACTIC POLYSTYRENE POLYPHENYLENE OXIDE BLEND [J].

HACHMANN, U ;

PETERMANN, J .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1982, 20 (09) :1633-1639

[5]

HOFFMAN JD, 1979, POLYMER, V20, P1071

[6]

PENNINGS AJ, 1979, MAKROMOL CHEM S, V2, P99

[7] CRYSTALLIZATION FROM A STRAINED MELT OR SOLUTION [J].

PETERLIN, A .

POLYMER ENGINEERING AND SCIENCE, 1976, 16 (03) :126-137

[8] THE KINETICS OF DEFECT CLUSTERING IN FIBRILLAR POLYPROPYLENE CRYSTALS [J].

PETERMANN, J ;

GOHIL, RM ;

SCHULTZ, JM ;

HENDRICKS, RW ;

LIN, JS .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1982, 20 (03) :523-534

[9]

PETERMANN J, 1981, MACROMOL CHEM PHYS, V182, P613

[10] ON THE SIZE OF CORE CRYSTALS OF ISOTACTIC POLYSTYRENE GROWN FROM POLYSTYRENE BLENDS [J].

PETERMANN, J ;

GOHIL, RM .

JOURNAL OF POLYMER SCIENCE PART C-POLYMER LETTERS, 1980, 18 (12) :781-787

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