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Mie scattering from sphere structures in polymer blends
Author(s) -
Uemura Yukikazu,
Chikaishi Kazuhiro,
Yamazaki Takashi
Publication year - 1979
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.1979.070230914
Subject(s) - scattering , mie scattering , polystyrene , opacity , materials science , light scattering , wavelength , polymer , spheres , methyl methacrylate , codes for electromagnetic scattering by spheres , optics , polymer chemistry , molecular physics , copolymer , physics , composite material , optoelectronics , astronomy
Polymer blends of transparent poly(methyl methacrylate) and polystyrene become opaque due to light scattering at the boundaries of the two polymers. The polymer blend is light brown when it is illuminated by white light. The coloring depends on the spherical domain structures existing in the polymer blend. The coloring was analyzed by using the rigorous Mie theory. The Mie results were compared with the semiempirical results previously reported by the authors. The wavelength dependence of theoretical scattering efficiencies on radii of scattering spheres from 0.05 to 1.2 μm was obtained for polystyrene spheres in poly(methyl methacrylate) matrix, and vice versa. The scattering at the short wavelength region is stronger than at the long wavelength region. The scattering efficiencies become almost constant in the visible wavelength region for sufficiently large spheres.