Premium
Dielectric and dynamic mechanical relaxation of poly(ether ether ketone)/poly(etherimide) blends below the glass transition
Author(s) -
Goodwin Andy,
Marsh Robert
Publication year - 1996
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1996.030170706
Subject(s) - peek , glass transition , dynamic mechanical analysis , materials science , ether , polymer chemistry , relaxation (psychology) , dielectric , arrhenius equation , thermal analysis , composite material , polymer , thermal , activation energy , chemistry , thermodynamics , organic chemistry , psychology , social psychology , physics , optoelectronics
Dielectric relaxation spectroscopy (DRS) and dynamic mechanical thermal analysis (DMTA) were used to investigate the secondary relaxation behaviour of poly(ether ether ketone) (PEEK), poly(etherimide) (PEI) and a miscible PEEK/PEI blend. The data from each technique, for the γ‐process, did not lie on the same Arrhenius line, while the rate of molecular motion of the γ‐process in the blends was largely an average of each component's motions. The β‐process in PEI was plasticised by the presence of PEEK.