Abstract
A novel poly(aryl ether), poly (phthalazinone ether ketone sulfone) (PPESK) copolymer, was synthesized. This high performance polymer was characterized by an extremely high glass transition temperature, extraordinary thermooxidative stability, but poor processability. The melt blends of PPESK and liquid crystal copolyester were prepared. The theology, morphology and the thermal behaviour of the blends were investigated by means of capillary rheometry, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermo gravimetric and heat deformation analysis. SEM observations revealed that a two-phase microstructure of the blends was formed, and a fibril morphology is created in the PPESK/LCP blends with the exception of PPESK/ 5%LCP blend. The thermogravimetric and heat deformation analysis indicated that the addition of LCP slightly affected these thermal properties of PPESK/LCP blends. The relationship of morphologies and rheological properties was correlated to explain the experimental results. The possible use of LCP as a processing aid for improving the processability of the novel PPESK was studied and discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
