Temperature dependence of the viscoelastic shift factor in ionomers | Zendy

Utracki L. A. | Zendy

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Temperature dependence of the viscoelastic shift factor in ionomers

Author(s) -

Utracki L. A.

Publication year - 1982

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760220206

Subject(s) - materials science , viscoelasticity , relaxation (psychology) , thermodynamics , styrene , modulus , dynamic mechanical analysis , dielectric , polymer chemistry , condensed matter physics , composite material , polymer , copolymer , physics , psychology , social psychology , optoelectronics

The temperature dependence of log a of poly(styrene ‐co‐ sodium methacrylate) was analyzed by means of the relation based on the free volume and the hole theories of liquids. For the near‐ T g region the relation becomes a single parameter equation of T / T g . The analysis revealed a transition in flow pattein at T T associated with disintegration of the ion multi plets. The T t ‐transition was previously detected in other theological functions, viz, relaxation modulus, mechanical and dielectric tan δ plots.

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