ISSN:
1435-1536
Keywords:
core-fibrils
;
polypropylene/polybutene-1 blends
;
small-angle x-ray scattering
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The equatorial small-angle x-ray scattering of blends of polypropylene and polybutene-1 crystallized from the oriented melt, has been analyzed by means of Guinier- and Porod analysis and absolute intensity measurements. The thickness of the core crystals, which appear to have an ellipsoidal shape, is of the order of 160 Å and does not vary with sample composition. Measurements of the half widths of the (110)- and (220)-wide angle x-ray diffraction lines indicate a decrea.se of the lateral dimension of the core crystals for both components. Calculations of the scattering power through a three-phase model for the electron densities indicate a non-proportional distribution of crystalline and amorphous phases in the blends.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01412037
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