Polyaniline-7,7,8,8-tetracyanoquinodimethanane (PANI-TCNQ) complex thin films were successfully grown by vacuum evaporation. The atomic force microscope (AFM) images showed that the rough PANI film is loosely constructed from many large spherical clusters. While the PANI-TCNQ film, closely packed with many small powder-like clusters, is densified and flat. The microstructure of the complex film can be made better by vacuum annealing. Charge transfer, from PANI chains to TCNQ molecule, was observed from Fourier transfer infrared spectrum of the complex film. The charge transfer can be intensified by vacuum annealing. The relationship between the microstructure and the electric properties of the film was discussed.

Single crystal silicon substrate was modified with self-assembled monolayer of 3-aminopropyl-trimethylsilane by aqueous phase silanization. Colloidal ld nanoparticles (12.0±1.0 nm) were adsorbed on such an amino-terminated surface with a submonolayer coverage. Randomly distributed ld nanoparticles were reorganized into two-dimensional close-packed aggregates when treated with alkanthiol molecules. Large size two-dimensional domains or ring-like structures of ld nanoparticles can be induced by solvent flow and evaporation.

Ag-modified La0.6Sr0.4MnO3 catalysts were prepared and their catalytic performance for deep oxidation of CH4 and CH3OH at low concentrations were investigated. The results showed that the La0.6Sr0.4MnO3 host catalyst with the perovskite-type nano-crystallite structure displayed considerably high catalytic activity for deep oxidation of CH4 and CH3OH at low concentrations. Ag modification to the La0.6Sr0.4MnO3 host catalyst resulted in significant enhancement of the catalyst activity, making the T95 (the reaction temperature needed for conversion of 95%of CH4 or CH3OH) lowered down to 735K (for CH4) and 421K (for CH3OH) from 813 and 465 K over the Ag-free system under the reaction conditions:0.1MPa,CH4/O2/N2=2/12/86(molar ratio),GHSV=45000 h-1 and CH3OH/O2/N2= 0.2/1.0/98.8 (molar ratio),GHSV=58000 h-1,respectively.The carbon containing product was almost CO2 and the contents of HCHO and CO in the reaction exit gas were both under GC detectable limit in both cases.
The results of spectroscopic characterization indicated that modification by proper amount of Ag-dopant did not change the perovskite structure of the La0.6Sr0.4MnO3 host catalyst as a whole. Interaction of Ag-dopant with the surface of the host catalyst,La0.6Sr0.4MnO3,was in favor of high dispersion of the Ag component at the catalyst surface and led to the oxidation of part of the Mn3+species to Mn4+,resulting in an increase of amounts of the reducible Mnn+ species and a decrease of their reduction temperature. On the other hand, this interaction led also to enhancement of adsorption ability of the catalyst toward O2 at relatively low temperature. High activity of the Ag modified La0.6Sr0.4MnO3 catalyst for CH4 and CH3OH complete oxidation was closely related to high redox-activity of the catalyst and its prominent adsorption-activation ability to O2 at relatively low temperatures. 

The MNDO calculation was undertaken for CTX and its analogs and the information of their electronic structures was obtained. Conformation analysis was carried out to study their structures. Their active sites and the way of action were determined, their structure-activity relationship and the interaction with receptors were discussed and the reason related to the difference of activity between analogs was explained. It was found that the unsaturated bond which located at ring D, ring E, ring F and ring A and the side chain are important to the activity which gives clues for further molecular design.

α-Fe2O3 nanoparticle with diameter of 10 nm was prepared by high energy ball milling directly from coarse α-Fe2O3 powders. It was found that the Mossbauer spectrum of the α-Fe2O3 nanoparticle at room temperature showed magnetic splitting sexlet lines broadened asymmetrically toward the central peaks .The asymmetric broadening of the spectral peaks could be attributed to the collective magnetic excitations. The anisotropic constant of the α-Fe2O3 nanoparticle exhibited a very high value (K=8.9×103J•m-3).

 DFT/BLYP method is used to investigate theoretically the electron transfer (ET) reactions between M(Li, Na, Mg)-C6H6 and M+-C6H6 complexes in the gas phase. The geometry optimization of the metal-benzene complexes and the encounter state in the process of ET reaction was performed at 6-31G basis set level. The precursor complex has C6 symmetry, the distance between acceptor and donor is about 0.30～0.36 nm, which yields the bonding energy approximately 0.9～1.5 eV. It shows that there are relatively strong interactions between them. The geometry of transition state is also obtained by the linear coordinate method. The activation energy, the coupling matrix element and the rate constant of the ET reaction are calculated. According to the reorganization energy of the ET reaction, the values obtained from George-Griffith-Marcus (GGM) method (the contribution only comes from the dia nal elements of the force constant matrix) are larger than those obtained from Hessian matrix method (including the contribution from both dia nal and off -dia nal elements),which suggests that the coupling interactions between different vibrational modes are important to the inner-sphere reorganization energy for the ET reactions in gaseous phase.

Vitamin C is found to show hydrotrope action and enhance the aqueous solubility of surfactant CTAB it also show the hydrotrope-solubilization action to increase the solubilzed amount of n-C5H11OH in O/W microemulsion and that of water in W/O microemulsion. Both action of VC are selective so that they can only be effective in cationic surfactant CTAB system. The mechanism of the hydrotrope-solubilization action of VC is in fact to increase the stability of W/O and O/W microemusion and the structural transition from the lamellar liquid crystal phase to the bicontinuous structure.

Ni-K/NaX catalysts were prepared by impregnating NaX with KOH and Ni(NO3)2 solution. The reducibility and the state of Ni species and the basicity of the samples were characterized by XRD、TPR、CO2-TPD and XPS techniques. It is shown that there is an interaction between metallic species and NaX, as well as KOH, which results in the easy reduction of Ni2+and the decrease in basicity of the sample. In the reaction of condensation of acetone to methyl isobutyl ketone(MIBK), the reason why a suitable balance between basicity and metallicity of catalysts is necessary for selective MIBK production has been revealed.

Nonlinear phase transitions are observed both from experiment and simulations in the modulated CSTR-BZ reaction system. The small amplitude oscillation of potential at low flow region is perturbed by periodic or noise (random) signal on the flow. Phase transition may occur under certain conditions (perturbation frequency and perturbation amplitude).The 4-variables Montanator model is used in the modeling calculations, and our experiments are in qualitative agreement with the model calculations.

A systematic study about the absorption of small molecules into polyurethane was undertaken in supercritical carbon dioxide. Changes in mass of PU were given in terms of the changes of factors such as decompression time, solubility parameter, electrophilic and aromatic character of small molecules. The effect of specific evaporation velocity of small molecules on desorption was observed. The results showed that polyurethane is easy to absorb electrophilic and aromatic compounds. The more rapid its specific evaporation velocity is, the faster the small molecule is desorbed.

The protonation constants of six aminoacids (glycine, analine, valine, leucine, isoleucine, and phenylalanine)and alycylalanine in SDS micelle solution have been determined by potentiometric pH titration technique at 25.0+0.1℃and at 0.10 mol•dm-3 ionic strength(NaNO3). It is found that all of the protonation constants in SDS solution increase remarkably as compare with these in aqueous solution. This means that SDS micelle depresses strongly the dissociation of proton .The reasons leading to the results and the rule of change of the protonation constants pKa1 and pKa2 with the concentration of SDS and the structure of these aminoacids and dipeptide are discussed by the pH titration data and 1H NMR research results.

It has been proven by experiments that cations play a very important role in metallothioneins polymerization. In this paper, three kinds of metallothioneines including MT-Ⅱfrom rat liver, MT-Ⅰand MT-Ⅱfrom rabbit have been investigated. From the analyses of electrostatic potential, two binding sites of cations can be determined: The first one is located between the dimer interface; the other one is located in the negative electrostatic potential hole. The binding capacity between two monomers in a dimer can be regulated by these cations to some extent.

4-[2-4(dimethylamino) phenyl] ethenyl pyridine N-oxide was synthesized . Electrochemical properties of this new hemicyanine dye were studied by means of cyclic voltammetry and in situ spectrochemistry. The result shows that the hemicyanine dye has electrochemical characteristics. In this paper, we report the determination of the reductive peaks.

The correlation of plating structure with the antioxygenation of micro Cu-Ag bimetallic powder was studied by SEM、XRD、TG and other means. It was found that copper powder plated with silver having an interspersion structure posesses antioxygenation at normal atmospheric temperature as surface Ag content reaches above 15.22%, the temperature of oxidation resistance varies with the surface Ag content. The greater the surface Ag content is, the higher the temperature of antioxygenation for bimetalic powder with the plating interspersion structure. The copper powder plated by silver with full packaging structure can not be oxidized even at 700℃.

An NAD analogue, N-(2-thiol-ethyl)-nicotinamide (TENA), was synthesized. TENA was used to modify the Au electrode through self-assembled monolayer. The cyclic voltammetry study of the electrode was carried out. The interference of dimerization of the NAD analogues reported in the literature was successfully avoided. The results support a mechanism of an electron transfer followed by chemical reaction during part of the redox process of TENA. Some useful reaction parameters were obtained.

CH radicals were prepared by photolysis of CHBr3 molecule, and were ionized by the same laser. Monitoring CH+, C+ and H+ ions signals, the CH REMPI spectrum was obtained in the range of 241-251nm.The CH D2Π(v=2)←A2Δ(v=0)(1+1) resonance transition was assigned. The rotational constants of CH D2Π(v=2) state were obtained by analyzing the REMPI spectrum. It was found that there is a broad feature peak at 247.6nm in C+ mass-specific spectrum. Based on the theoretical result, the broad feature peak is correlated with an unreported predissociation Rydberg state (3 2Π) which converges to CH+(A,1Π) state.

The purpose of this work was to investigate the effect of the chemical structure of various drugs on the exchange reaction kinetics and the release kinetics of calcium channel blockers such as verapamil hydrochloride (VH), diltiazem hydrochloride (DH).It was found that the exchange rates and equilibrium constants of exchange reaction increased with increasing of temperatures. The exchange reaction rate and apparent equilibrium constant of DH with low molecular weight and simple chemical structure were greater than that of VH with high molecular weight and complex chemical structure. The drug release studies in vitro showed that there was no found of VH and DH releasing from resinate when the deionic water was the release medium. The release rate increased with increasing of ionic strength of solutions, which indicates that the release of VH and DH from resinate strongly depends on the ionic strength of the release media. The diffusion of VH and DH within resin particles was controlled by particle diffusion process based on the equations of Body and Viswanathan. The diffusion coefficients increase with increasing of ionic strength of the releasing media. The release kinetics of VH and DH could be described satisfactorily by the equations of Boyd and Viswanathan. The results obtained in this study demonstrates that the exchange reaction process and the release process depend on the chemical structure and the molecular weight of the drugs as well as the cate ry of the counter-ions.