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Nano-cellular foams were successfully produced from nanostructured PMMA/block copolymer blends using a gaseous CO2 foaming process. The use of block copolymer as potential nucleating agents has allowed the obtaining of nano-cells with cell densities higher than 1014 cm−3. Optimization on PMMA matrix formulation composed of blends of PMMAs with different molar masses, combined with the optimization...
The understanding of the basic physical relationships between nano-scale structural variables and the macroscale properties of polymer nanocomposites remains in its infancy. The primary objective of this article is to ascertain the state of the art regarding the understanding and prediction of the macroscale properties of polymers reinforced with nanometer-sized solid inclusions over a wide temperature...
The viscoelastic characteristics of the blends of poly(methyl methacrylate)/poly(styrene-co-acrylonitrile) (PMMA/SAN) were investigated at various temperatures below, near, and above the phase separation temperature. The investigated polymer system is characterized by a lower critical solution temperature. Rheological behavior of the blends in the region of a phase separation was compared with change...
Additional developments in the comprehension of the rheological behaviour of polymer latices, especially near the high critical concentration ϕ c , are presented for two polystyrene latices of average particle diameters close to 200nm with different electrostatic properties. Not surprisingly, there is a rapid transition in the rheological characteristics over a narrow range of polymer volume...
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