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Polyvinylidene fluoride (PVDF), in homogeneous blends with an amorphous polymer under specific conditions, forms crystals with a tree-like architecture. Tree-like crystals have a loose fractal structure of crystalline branches which are impregnated with the amorphous polymer. In a previous study, this spectacular morphology was investigated in blends of PVDF and a random copolymer of styrene and methylmethacrylate...
Structure and phase transitions of polydiethylsiloxane (PDES) were studied with AFM at temperatures in the 300-268 K range. The measurements were performed on a polymer layer deposited on a Si substrate by rubbing. It is shown that at room temperature the layer is a polymer mixture in amorphous and mesomorphic states. With the decrease of temperature to 273 K, all material converts into the mesomorphic...
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