中文摘要：

对弱酸苯酚与弱碱已内酰胺以不同配比制备的离子液体进行了研究，考察了其物理化学性质（熔点、密度、电导率、溶解性等）。结果表明，合成的离子液体的熔点随二者物质的量比的不同而变化，当物质的量比为3．5：1时熔点最低，为-22℃。离子液体的密度比水的密度大，且随温度的升高，密度增大。离子液体的电导率为10^-4S／m数量级，且随温度的升高，电导率增大，电导率与温度符合Arrhenius方程。溶解性试验表明，离子液体具有较强的溶解能力，能与水、醇类、酯类等一般溶剂互溶。IR测试结果显示，所合成的离子液体具有苯酚和己内酰胺的特征峰。

英文摘要：

The new type ionic liquid is synthesized by phenol and caprolactam at different molar ratios, and the physical properties are measured, such as the melting point, the density, conductivity, soluble, etc. The results show that the melting point at phenol/caprolactam of 3. 5 ： 1 is about -22℃, which is much lower than those of raw materials. The density is bigger than that of the water and alcohol, and decreases with the temperature increase. The conductivity in 10^-4 S/m magnitude decreases with the increasing of temperature and accords to Arrhenius equation. The solubility of ionic liquid shows that it is miscible with organic solvent such as alcohol, ester, etc. The results of IR show that the ionic liquid has the characteristic peaks of phenol and caprolactarn.