title: Preparation of nanosheet polyethylene with heterogeneous metallocene catalyst and formation mechanism of nanosheet polyethylene.
abstract: Silica with small and regular pore sizes was synthesized by hydrothermal crystallization and investigated with thermogravimetric analysis, X-ray diffraction, Fourier transform infrared spectroscopy, N2 adsorption-desorption, and scanning electron microscopy (SEM). The ethylene polymerization was carried out with the silica-supported metallocene catalyst, and the morphology of the resultant polyethylene was investigated with SEM. It was found that the silica could break up into sheet fragments instantaneously during polymerization and the polyethylene could replicate it to obtain nanosheet polyethylene. A possible formation mechanism of the nanosheet polyethylene is proposed.
authors.affiliation: State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Dong
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Junfeng
authors.initials: J
authors.lastname: Zhou
authors.forename: Libo
authors.initials: L
authors.lastname: Deng
authors.forename: Jia
authors.initials: J
authors.lastname: Huo
authors.forename: Chunlei
authors.initials: C
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures; D009942:Organometallic Compounds / Q000737:chemistry*; D020959:Polyethylene / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D009942:Organometallic Compounds; C013108:metallocene; D020959:Polyethylene