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This study demonstrates the important role of the compatibilizer in blown films of a ternary blend of a thermotropic liquid crystalline polymer (TLCP (a poly(ester amide)), dispersed phase), a polyetherimide (matrix), and a poly(ester imide) (PEsI, compatibilizer). We investigated the morphology of the blown films via transmission electron microscopy and scanning electron microscopy, as well as optical...
The crystallization kinetics of isotactic polypropylene (iPP) and maleic anhydride grafted polypropylene (MA–PP) and their blends, crystallized both nonisothermally and isothermally, were investigated by differential scanning calorimetry. During isothermal crystallization, relative crystallinity developed with the time dependence described by the Avrami equation with exponents n≈2.7 for neat iPP and...
The surface viscoelastic properties of poly(vinyl acetate) (PVAc), spread as a monolayer at the air-water interface, were determined using the electrocapillary wave diffraction (ECWD) technique with the Wilhelmy plate method for static surface tension measurements. Surface longitudinal viscosity, κ, and elasticity, ε, were calculated from the dispersion equation for surface waves over a range of surface...
This study investigates the compatibilizing effect of a poly(ester imide) (PEsI) on the blends of poly(ether imide) (PEI, Ultem 1000 from G.E.) and thermotropic liquid crystalline polymer (TLCP) (poly(ester amide), PEA, Vectra B950 from Hoechst Celanese). The compatibilizer, PEsI, was synthesized. Composite fibres were prepared by extrusion. Compatibility, thermal and rheological properties of...
Blends of a thermotropic liquid crystalline polymer (TLCP), [poly(ester amide), PEA, Vectra B950 from Hoechst Celanese] and poly(ether imide) (PEI, Ultem 1000 from G.E.) with the compatibilizer [poly(ester imide), PEsI] were extruded in a twin-screw extruder. The extruded strands were evaluated in terms of morphology and mechanical properties. The morphology of the compatibilized in situ composites...
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