کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
228319 464837 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Mn doped-titania on the activity of metallocene catalyst by in situ ethylene polymerization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of Mn doped-titania on the activity of metallocene catalyst by in situ ethylene polymerization
چکیده انگلیسی

Ethylene polymerization was carried out using highly active metallocene catalysts (Cp2ZrCl2 and Cp2TiCl2) in combination with methylalumoxane. Titanium(IV) oxide containing 1% Mn as dopant was used as nanofillers. The influence of filler concentration, reaction temperature and pressure on the catalytic activity and polymer properties was investigated. There was a fourfold increase in the activity of zirconocene catalyst by addition of doped-titania. The morphology indicates that the doped-titania nanoparticles have a nucleus effect on the polymerization and caused a homogeneous PE shell around them. The optimum condition for polymerization was found to be 30 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Industrial and Engineering Chemistry - Volume 18, Issue 5, 25 September 2012, Pages 1836–1840
نویسندگان
, , , , , ,