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A new method for torsional pendulum analysis of polymers through the glass transition region
Author(s) -
Fava R. A.,
Chaney C. E.
Publication year - 1977
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.1977.070210319
Subject(s) - materials science , glass transition , polymer , polystyrene , copolymer , maleic anhydride , composite material , torsion pendulum clock , polymer chemistry , phenylene , softening point , physics , quantum mechanics
A freely oscillating torsional pendulum has been used to measure the dynamic‐mechanical loss of polymers through the softening temperature by encapsulating the polymer in a rigid matrix of cured phenolic resin. The method is illustrated with loss curves through the glass transition region of poly(vinyl chloride), polystyrene, a styrene–maleic anhydride copolymer, poly(phenylene oxide), and two binary alloys involving these polymers. The advantages and simplicity of the technique are emphasized.