High performance polymeric networks and thermoplastic blends : microwave versus thermal processing
MetadataShow full item record
Novel poly (arylene ether ketone)/poly(aryl imide) homo- and poly (dimethylsiloxane) segmented copolymer blend systems have been investigated to determine the influence of chemical structure on miscibility and physical property behavior. Melt processing results demonstrate that the glass transition temperature of PEEKâ ¢ blends increase monotonically with polyimide content. Indeed, Tg'S as high as 240Â°C have been achieved for certain blend compositions, while still retaining adequate crystallization to provide solvent resistance. The experimental Tg results are in good agreement with the theoretical values predicted by the Fox equation. Lastly, electromagnetic processing was applied to PEEKâ ¢/Ultemâ ¢ blends to demonstrate the principles of "microwave calorimetry".
- Doctoral Dissertations