Binary melt-blended mixtures of two aryl ether ketone polymers (i.e., a new poly(aryl ether ketone) (code name PK99) and poly(ether ether ketone) (PEEK), have been studied. Polymer miscibility in glassy amorphous (or melt) domains has been demonstrated for the binary blend comprising of two aryl-eth
Dielectric and dynamic mechanical relaxation of poly(ether ether ketone)/poly(etherimide) blends below the glass transition
β Scribed by Andy Goodwin; Robert Marsh
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 277 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1022-1336
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β¦ Synopsis
Abstract
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 Ξ³βprocess, did not lie on the same Arrhenius line, while the rate of molecular motion of the Ξ³βprocess in the blends was largely an average of each component's motions. The Ξ²βprocess in PEI was plasticised by the presence of PEEK.
π SIMILAR VOLUMES
The relaxation behavior of four amorphous poly(aryl ether ketone)s was investigated using dielectric relaxation spectroscopy and dynamic mechanical analysis. The temperature dependence of the relaxation times of the glass transition process and the cooperative nature of this process were unaffected
The mechanical and dielectric relaxation of a set of aromatic-aliphatic polyamides containing ether linkages have been examined as a function of temperature (0140 to 190ΠC) and frequency (3 to 10 6 Hz). The polymers differ in the orientation (meta and para) of the aromatic rings, in the length of th