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In this study, the influence of rheological and morphological properties on the foaming behaviour of polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) diblock copolymers and their composites with PMMA modified silica nanoparticles is discussed. The blowing agent was carbon dioxide. Cylindrical and lamellar types of PS-b-PMMA diblock copolymers with different molecular weights were chosen in...
The dynamic mechanical properties of poly(styrene-co-Na tiglate) PSTANa, poly(styrene-co-Na methacrylate) PSMANa, and poly(styrene-co-Na acrylate) PSAANa ionomers were investigated to know the effect of the number of methyl groups of the acrylate unit on the mechanical properties and morphology of those ionomers. It was found that the ionic modulus of the PSTANa ionomers was much lower than that of...
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