IntroductionHeparin is a polysaccharide of glycosaminoglycanclass, which consists of repeating disaccharide units ofiduronic/glucuronic acid and glucosamine res
Fe-2O_ 3 /Al-2O_ 3 nanocomposites prepared by using the sol-gel technique were reduced in H-2 atmosphere at different temperatures, and the corresponding Fe/Al_
A series of heterogeneous catalysts with Cp2TiCl2 supported on palygorskite were prepared and evaluated by ethylene slurry polymerizations. The so-called direct