Nano-porous Composites Based on Liquid： Synthesis, Characterization, Esterification Heteropolyacid Functionalized Ionic and Catalytic Performance in

Fhnctionalized ionic liquid samples （bmim-PW12） were synthesized by 1-butyl-3-methyl- imidazolium bromide （bmimBr） and 12-phosphotungstic heteropolyacid （PW12）. The samples were annealed at 100-450 ℃ and were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, thermal gravity-DTG, brunauer emmett teller, and NHa-temperature programmed desorption. The results showed that the bmim-PW12 samples were crystal and maintained intact Keggin structure. The organic parts of those samples were partly decomposed at a temperature more than 350 ℃. The sample annealed at 400 ℃ exhibited nano-porous structure, strong acidity, and excellent catalytic activity on the esterification of n-butanol with acetic acid. The higher ester yield was obtained when the mass ratio of catalyst over the reactants amount was 5% for bmim-PW12 catalyst annealed at 400 ℃.

淀粉磷酸脂和两性淀粉磷酸脂

本研究是关于制备淀粉磷酸脂和两性淀粉磷酸脂的。淀粉磷酸脂和两性淀粉磷酸脂可以在不同的地方应用，如作造纸的添加剂和施胶压榨部添加剂、天花板瓷砖添加剂、钻井流性调节剂、粘度改性剂等。通常，生产淀粉磷酸脂糊的传统方法是由颗粒状得到。固态淀粉磷酸脂的生产方法如专利（美国）4，029,544,4,166,173及4，216，310描述的那样。