The temperature-time dependences of the strength of polyvinylene carbonate (PVCa) and its solid hydrogenated monomeric analog, ethylene carbonate (EC), have been investigated. The parameters of these relations have been determined graphically and by calculation. The fracture energy barriers of the ...
Poly (vinylene carbonate) (PVC) was prepared according to the previously reported literature.[42]. Polyoxyethylene bis(amine) (POEA, 2000 Da) was purchased from Macklin Biochemical Co., Ltd. Aminopropionitrile (AN) was supplied by Meryer Chemical Technology Co., Ltd. Poly (ethylene oxide) (PEO...
conductive polymer films (poly (9,9-n-dioctyl-2,7-fluorenylene ethylene) (PDO27FE), poly (2,5-biphenylene ethylene) (PPPX), poly (40 - hexyloxy-2,5-biphenylene ethylene) (PHBPE) and poly (2-bromo5-hexyloxy-p-phenylene vinylene) (BHPPV)) on a surface of interconnected Chromium ...
Elemental analyses and 1 H-NMR spectra obtained on the pyridine-initiated polymer and its methyl ester refute both the cis -poly(vinylene ketoanhydride) structure suggested by Schopov and the polycylopentanone structure proposed by Braun and co-workers. 展开 ...
Hydrogel-like polymers with reactive cyclic carbonate (CCA) groups have been obtained by the cross-linking reaction of poly(vinylene carbonate) (PVCA) with Jeffamines. By this reaction, microspheric hydrogel beads with a high water content and a high concentration of reactive CCA groups were ...
VinylenecarbonatePolymerizationHighMolecularWeightDegradationMark-HouwinkEquationBulk polymerization of vinylene carbonate using t-butylperoxypivalate at 40℃gave colourless, high molecular weight poly(vinylene carbonate) (PVCA). Solutions of PVCA in acetone and DMF are not stable at 25℃and this degradation...
Herein, poly(vinylene carbonate) (PVC) and poly(vinylethylene carbonate) (PVEC) containing only oxygen heteroatoms are prepared and exhibit blue photoluminescence (PL) with excitation/molecular weight-dependent and concentration-enhanced emission properties. The PL quantum yields of PVC and PVEC in ...
As PHM is infusible and insoluble in common solvents, its precursor polyvinylene carbonate (PVCA) dissolved in dimethylsulfoxide (DMSO) is used to 3D print hierarchically porous PVCA scaffolds that are converted into PHM by hydrolysis without impairing the pore architectures. Similar to low‐...
Poly(vinylen carbonateFixed enzymeSupportTrypsinPoly(ethylene oxide) end-capped with amine groups (aa-PEO) was prepared in this study. It then was dissolved with poly(vinylene carbonate) (PVCA) in DMF. The solution was suspended in paraffin oil with stirring and consequently the beaded ...
Vinylene carbonatePolymerizationHigh Molecular WeightDegradationMark-Houwink EquationBulk polymerization of vinylene carbonate using t-butylperoxypivalate at 40℃ gave colourless, high molecular weight poly(vinylene carbonate) (PVCA). Solutions of PVCA in acetone and DMF are not stable at 25℃ and this...