Small-angle scattering in polymer blends
نویسندگان
چکیده
منابع مشابه
Crystallization and Chain Conformation of Semicrystalline and Amorphous Polymer Blends Studied by Wide-Angle and Small-Angle Scattering
We examine the crystallization and chain conformation behavior of semicrystalline poly(ethylene oxide) (PEO) and amorphous poly(vinyl acetate) (PVAc) mixtures with wide-angle X-ray diffraction (WAXD), small-angle X-ray scattering (SAXS), and small-angle neutron scattering (SANS) experiments. For blends with PEO weight fractions (wtPEO) greater than or equal to 0.3, below the melting point of PE...
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Small Angle Neutron Scattering (SANS) is a technique that enables to probe the 3-D structure of materials on a typical size range lying from ∼ 1 nm up to ∼ a few 100 nm, the obtained information being statistically averaged on a sample whose volume is ∼ 1 cm3. This very rich technique enables to make a full structural characterization of a given object of nanometric dimensions (radius of gyrati...
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To understand the unusual composition and wave vector, q, dependent Flory interaction parameters, ø, obtained from small angle neutron scattering (SANS), we have calculated the three partial structure factors for symmetric binary polymer blends with relatively strong interactions between dissimilar monomers using molecular dynamics simulations. In agreement with past work we find that the radii...
متن کاملPolymer blends, copolymers and networks. Scattering properties and phase behavior
The phase behavior and scattering properties of polymer blends, copolymers and networks in solution and in bulk are examined. The theoretical framework used here is based upon the extension of the random phase approximation to polymers proposed by de Gennes and its application to chains with various architectures. The case of blends containing stiff chains is considered and the effect of nemati...
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ژورنال
عنوان ژورنال: Journal of Polymer Science: Polymer Physics Edition
سال: 1980
ISSN: 0098-1273,1542-9385
DOI: 10.1002/pol.1980.180181209