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Hybrid magnetic nanoparticles (MNPs) with well-defined core-shell structure, pH-tunable interfacial activity and strong magnetic responsiveness were developed as recyclable stabilizers for oil–water separation. The Fe3O4 magnetic core was synthesized using a solvothermal method involving hydrolysis of Fe(II) and Fe(III) salts in basic condition, followed by surface-initiated atom transfer radical...
Usually, amphiphilic or crystalline structure is necessary to prepare nano- or micro-structured materials with various morphologies. Racemic random polylactide (PDLLA) is completely amorphous in nature and was mainly prepared to be of spherical form for the use of sustained drug release. In this paper, we observed novel lath-, sheaf-like morphologies of PDLLA microarchitectures fabricated by the double...
A series of polypropylene/poly(ethylene-co-propylene) (PP/EPR) in-reactor alloys were synthesized by the homopolymerization of propylene in the first stage, after that it switches to gas-phase ethylene–propylene copolymerization and gas-phase homopolymerization of propylene in a circular mode. The alloys were characterized by FTIR, DSC, PLM, TEM and SEM. Changing switch frequency had hardly any influence...
In this work, we show that simple dialysis of a poly(dl-lactic acid) (PLA) solution against water resulted in the spontaneous formation of PLA spheres. We observed initial formation of particles with irregular shape and large size, which then were disrupted into uniform and smooth nanospheres. Further, the formation process of PLA spheres was also investigated by dynamic light scattering technique...
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