Thermodynamic and kinetic properties of the tautomerism of an indoline spiropyran in compressed CO2-ethanol mixture were studied by UV-Vis spectroscopy at 298.15 K, 303. 15 K, and 308.15 K. It was found that the compo...Thermodynamic and kinetic properties of the tautomerism of an indoline spiropyran in compressed CO2-ethanol mixture were studied by UV-Vis spectroscopy at 298.15 K, 303. 15 K, and 308.15 K. It was found that the composition of the mixture affects the equilibrium constant and the rate constant significantly.展开更多
Styrene was polymerized in supercritical （sc） CO2 with benzoyl peroxide （BPO） as initiator. It was found that the polymerization was accelerated by the external magnetic field.
The critical micelle concentrations (CMC) and the micelle-forming enthalpies (DeltaH(mic)) of gemini surfactants were first measured by the precise titration microcalorimetry. The results showed that DeltaH(mic) value...The critical micelle concentrations (CMC) and the micelle-forming enthalpies (DeltaH(mic)) of gemini surfactants were first measured by the precise titration microcalorimetry. The results showed that DeltaH(mic) values are negative, and there is an exothermal minimum between s=4 and s=6. Furthermore. the CMCs of the surfactants are in good agreement with literature values.展开更多
The solubilities of a number of solid solutes in supercritical CO2 have been correlated usingthe model proposed in previous paper. The numbers of CO2 in each CO2 -solute cluster and the localdensity of the CO2 in the...The solubilities of a number of solid solutes in supercritical CO2 have been correlated usingthe model proposed in previous paper. The numbers of CO2 in each CO2 -solute cluster and the localdensity of the CO2 in the clusters are predicted using the model. The results calculated agree fairly wellwith the experimental data.展开更多
文摘Thermodynamic and kinetic properties of the tautomerism of an indoline spiropyran in compressed CO2-ethanol mixture were studied by UV-Vis spectroscopy at 298.15 K, 303. 15 K, and 308.15 K. It was found that the composition of the mixture affects the equilibrium constant and the rate constant significantly.
基金This work is financially supported by National Key Basic Research Project(G2000048010)the National Natural Science Foundation of China for financial support(29725308).
文摘Styrene was polymerized in supercritical （sc） CO2 with benzoyl peroxide （BPO） as initiator. It was found that the polymerization was accelerated by the external magnetic field.
基金the Royal Society,the Academia Sinica,and the National Natural Science Foundation of China.
文摘The critical micelle concentrations (CMC) and the micelle-forming enthalpies (DeltaH(mic)) of gemini surfactants were first measured by the precise titration microcalorimetry. The results showed that DeltaH(mic) values are negative, and there is an exothermal minimum between s=4 and s=6. Furthermore. the CMCs of the surfactants are in good agreement with literature values.
文摘The solubilities of a number of solid solutes in supercritical CO2 have been correlated usingthe model proposed in previous paper. The numbers of CO2 in each CO2 -solute cluster and the localdensity of the CO2 in the clusters are predicted using the model. The results calculated agree fairly wellwith the experimental data.
