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Nanostructured binary metal oxide-decorated carbon nanofibers (CNFs) were utilized as flexible electrodes for hybrid supercapacitor applications. Polyacrylonitrile (PAN)/lignin based carbon nanofibers (PAN/lignin CNFs) with different contents of lignin were prepared by electrospinning, stabilization and carbonization. Afterwards, the NiCo2O4 oxides were deposited on the surface of CNFs by a facile...
Two new diamine monomers having a spirobifluorene structure were synthesized through four steps, and polymerized with three different dianhydrides (PMDA, CBDA and 6FDA) to obtain six polyimides with spirobifluorene structure in the side chain. All the resulting polyimides displayed excellent thermal stability and high glass transition temperature. These polyimides synthesized from CBDA and 6FDA showed...
A porogen-leaching method was applied to intend fabrication of polycaprolactone (PCL) scaffolds. Following with a routine solution infiltration, freeze-drying and porogen-leaching process, the porous scaffolds were normally prepared at an initial solution temperature of 25 °C. However, the PCL anisotropic particles with the smooth and fuzzy surfaces toward the gelatin porogen and the solution, respectively,...
Reversibly light-responsive and biocompatible micelles with an appropriate size were constructed from an amphiphilic spiropyran-containing hyperbranched polyphosphate (denoted as HPHEEP-SP). The polymer was conveniently synthesized based on the modification of a biodegradable hyperbranched polyphosphate with carboxyl-containing spiropyran molecules. HPHEEP-SP can self-assemble to biocompatible micelles...
Nanometer dispersed polypropylene/polystyrene (PP/PS) interpenetrating networks (IPNs) have been prepared by the radical polymerization and crosslinking of styrene (St) within supercritical (SC) CO 2 -swollen PP substrates. In this method, monomer St, crosslinking agent divinyl benzene (DVB), and the initiator benzoyl peroxide were first impregnated into PP matrix using SC CO 2 as...
Phase behavior of supercritical CO2/styrene/poly (ethylene terephthlate) (PET) system was determined at 35°C and different pressures. The concentration of styrene in the fluid phase ranged from 0 to 1.3mol/l. Styrene partitioned between the fluid phase and PET films, and significant amount of styrene was absorbed into PET matrix. When the styrene contained 0.3mol% initiator azobis (isobutyronitrile)...
Phase equilibria of CO 2 -Phenol-Poly(ethylene terephthalate) (PET) ternary system were investigated at 318.15 and 326.15K and at pressures ranging from 6 to 17MPa. The results show that the solubility of CO 2 in PET/phenol solution increases with pressure, and decreases with temperature. The solubility of PET in phenol (on CO 2 -free basis) decreases significantly with pressure...
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