کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10244667 47698 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanofibers of polyethylene produced by SBA-15 supported zirconium catalyst [N-(3-tert-butylsalicylidene)-4′-allyloxylanilinato]2Zr(IV)Cl2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Nanofibers of polyethylene produced by SBA-15 supported zirconium catalyst [N-(3-tert-butylsalicylidene)-4′-allyloxylanilinato]2Zr(IV)Cl2
چکیده انگلیسی
Ethylene polymerization was carried out with the zirconium catalyst bis[N-(3-tert-buttylsalicylidene)-4′-allyloxylanilinato] zirconium(IV) dichloride supported on SBA-15, which had a uniform hexagonal array of linear channels, with MAO (methylalumoxane) as the cocatalyst. Both the molecular weight and melting point of the obtained polymers were much higher, compared with the polyethylene produced by its homogeneous counterpart. This observation indicates that the mesoporous zeolite SBA-15 can effectively control the direction and dimension of the growth of polymers in the process of polymerization, yielding polymers with improved properties. Nanofibrous polyethylene was also obtained under polymerization conditions with the use of this supported catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 234, Issue 2, 10 September 2005, Pages 356-363
نویسندگان
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