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Mechanical α‐dispersion and interaction in filled polystyrene and polymethylmethacrylate
Author(s) -
Iisaka K.,
Yama K. Shiba
Publication year - 1978
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.1978.070221109
Subject(s) - polystyrene , materials science , filler (materials) , mica , polymer , composite material , dispersion (optics) , adsorption , monomer , glass transition , chemistry , organic chemistry , physics , optics
Dynamic mechanical properties of polystyrene (PS) and polymethylmethacrylate (PMMA) filled with glass beads and mica flakes have been investigated. The α‐dispersion temperature ( T α ) increases with filler content in each system. The increase in T α is larger for PMMA than for PS in the case of the same filler; the increase in T α is larger for mica than for glass in the case of the same polymer. Polymer‐filler interaction energies have been estimated from heats of adsorption of the monomers of the filler surfaces determined by solid gas adsorption chromatography. The increase in T α can be related to the extent of polymer‐filler interaction energy. The thickness of the partially immobilized layer on the filler surface has been estimated to be the orders of 0.1 and 1.0 μm, respectively, for the mica and the glass‐filled systems.