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Characterization of polymer blends and alloys by constrained profile‐analysis of X‐ray diffraction scans
Author(s) -
Murthy N. S.,
Minor H.,
Akkapeddi M. K.,
Buskirk B. Van
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070410929
Subject(s) - crystallinity , materials science , crystallite , polymer , amorphous solid , diffraction , characterization (materials science) , copolymer , polymer blend , x ray crystallography , x ray , chemical engineering , polymer chemistry , composite material , crystallography , optics , nanotechnology , chemistry , physics , engineering , metallurgy
The composition of polymer blends and alloys and the crystallinity and crystallite size/perfection of each of the components are determined by X‐ray diffraction (XRD) methods. A profile‐fitting procedure is used to resolve the XRD scan into crystalline and amorphous peaks corresponding to each of the polymers. The procedure uses templates derived from the XRD scans of the homopolymers as constraints. The usefulness of this method for studying the influence of blending and grafting is illustrated by analyzing the data from two‐component blends with and without the graft copolymer compatibilizer.