Open AccessViscoelastic relaxation phenomena in poly(mono‐ n ‐alkyl itaconates)
Author(s) -
DíazCalleja R.,
Sanchis M. J.,
Gargallo L.,
Radic D.
Publication year - 1996
Publication title -
journal of polymer science part b: polymer physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.65
H-Index - 145
eISSN - 1099-0488
pISSN - 0887-6266
DOI - 10.1002/(sici)1099-0488(19960130)34:2<261::aid-polb6>3.0.co;2-w
Subject(s) - viscoelasticity , relaxation (psychology) , thermodynamics , glass transition , formalism (music) , alkyl , stress relaxation , materials science , chemistry , polymer chemistry , nuclear magnetic resonance , physics , composite material , polymer , organic chemistry , art , psychology , social psychology , musical , visual arts , creep
Dynamic mechanical relaxation measurements were carried out on two poly(monoalkylitaconates). Three relaxation peaks between −120 and 140°C were present. A prominent subglass relaxation (β) near −60°C was studied by means of the Fuoss‐Kirkwood formalism. A slight viscoelastic activity (β′) was observed at room temperature, and then a high temperature peak (α), probably related to the glass transition, was found. A biparabolic model, double Cole constant phase element was used to model the experimental data in this zone. © 1996 John Wiley & Sons, Inc.