A room temperature ionic liquid,1-allyl-3-methylimidazolium tetrafluoroborate(BF4) was prepared by a two-step synthesis.Then gel polymer electrolytes(GPE) prepared by incorporating the ionic liquid BF4 and poly(methyl methacrylate)(PMMA) were modified with aprotic solvents propylene carbonate(PC) and dimethyl carbonate(DMC) and SiO2 nano particles.The structure and properties of the GPE were studied by means of fourier transform infrared spectroscopy(FT-IR),A.C.impedance(AC),thermogravimetry(TG),and scanning electron microscope(SEM).The results showed that the introduction of aprotic solvents PC-DMC and nano-SiO2 particles increased the ionic conductivity of the GPE,which showed a highly ionic conductivity of up to 5.25×10-3 S/cm at room temperature.In addition,the conductive behavior of the GPE follows an Arrhenius equation.The gel polymer electrolytes shows high thermal stability and tends to decompose at temperature higher than 300 ℃.

Different hard segment waterborne polyurethane prepolymers are synthesized in two steps from isophorone diisocyanate (IPDI)/ toluene diisocyanate (TDI), polyester polyol (N210), dimethlolpropionic acid (DMPA), using deionized water with triethylamine to neutralize and emulsify, then being chained with ethylene diamine (EDA), to obtain WPU adhesives from TDI and IPDI. The structure and properties of different hard segment WPU emulsions and films are investigated by FTIR, Viscosity, Thermo Gravimetric (TG) methods. The NCO contents are analyzed by the quantitative and qualitative analysis methods. It is shown that with the reaction in process, the NCO group content is gradually reduced, and it takes at least 200min to reach the theoretical value. WPU adhesives from TDI and IPDI emulsions are more stable, transparent, and the solvent resistance is better when the contents of DMPA are 3.0%(W/W) and 8.0%(W/W), respectively; Under these conditions, the viscosity can reach 2000mPa·s and 6950mPa·s, respectively. Both WPU films from TDI and IPDI have good thermal stability, and the thermal decomposition temperatures are 350.8℃ and 295.0℃ , respectively. WPU from IPDI has higher mechanical strength, with tensile strength of 3.37MPa. The overall performance of WPU adhesive prepared by IPDI is better than that by TDI.

The IL-Pro/SBA-15 catalyst was prepared using SBA-15 as the support to immobilize ionic liquid proline, which was synthesized from L-proline. The IL-Pro/SBA-15 catalyst was characterized by FT-IR spectroscopy, thermal gravity analysis-derivative thermogravimetry, N-2 adsorption-desorption, X-ray diffraction, and transmission electron microscopy, and the catalytic performance of the catalyst was measured for Knoevenagel reaction. The results showed that the mesoporous structure of SBA-15 was not affected by immobilization; however, the pore diameter, pore volume, and surface area were decreased. Mass loss of the supported ionic liquid occurred at 250-360 degrees C, and reached the maximum at 310 degrees C. The Pro-IL/SBA-15 catalyst had higher activity in Knoevenagel reaction of benzaldehyde with malononitrile and gave the corresponding product yield of 94%. The supported catalyst could be easily separated from the reaction system and reused at least seven times without loss of catalytic activity.

The composite gel polymer electrolytes containing ionic liquid [BMIM]PF6 in aprotic solvents were prepared and invesigated.The gel polymer electrolyte PMMA-PC-[BMIM]PF6 showed a highly ionic conductivity about 3.44×10-3 S/cm when the mass ratio of [BMIM]PF6∶PC is 45∶55.The gel polymer electrolyte PMMA-LiPF6-(PC-DMC)-[BMIM]PF6 showed a highly ionic conductivity about 10.05×10-3 S/cm when the mass ratio of [BMIM]PF6∶(DMC-PC) is 35∶65.The electric conductivity of the polymer electrolyte increases with increasing temperature,and fits the Vogel-Tamman-Fulcher (VTF) equation.The gel polymer electrolytes exhibited a greater thermal stability than the traditional non-aqueous electrolyte systems including organic solvent.Most of them exhibited high decomposition temperatures above 250 ℃,and the weight loss was found less than 0.97%(mass fraction) up to 80 ℃.The transference number of lithium ions in the polymer electrolyte is about 0.3.The electrochemical window is up to 5.1 V.

Gel polymer electrolytes with ionic liquid [BMIM]Cl-ZnCl2 and an aprotic solvent were prepared via in situ free radical polymerization from vinyl monomers MA,MMA or HEMA as matrix and studied. The structure and properities of the products were studied by means of FTIR,AC,and TG. The interactions and structure changes of the composites were investigated by FTIR. The combination of a Lewis acid ionic liquid,[BMIM]Cl-ZnCl2 with aprotic solvent PC or DMC strongly increased the ionic conductivity in comparison with the neat ionic liquid,which showed a highly ionic conductivity of up to 2.83×10-3 S/cm at room temperature. And the activation energies of ions were calculated according to VTF equation. The gel polymer electrolytes exhibited high decomposition temperatures of above 275 ℃.