کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1328126 977539 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, characterization, and ethylene polymerization behavior of [(RR′-admpzp)2Ti(OPri)2] complexes (RR′-admpzp = 1-dialkylamino-3-(3,5-dimethyl-pyrazol-1-yl)-propan-2-olate)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis, characterization, and ethylene polymerization behavior of [(RR′-admpzp)2Ti(OPri)2] complexes (RR′-admpzp = 1-dialkylamino-3-(3,5-dimethyl-pyrazol-1-yl)-propan-2-olate)
چکیده انگلیسی
[(RR′-admpzp)2Ti(OPri)2] (2a-c) are pseudo-octahedral complexes that contain RR′-admpzp ligand κ2-O,N(pyrazolyl)-coordinated to the titanium center. In solution, 2a-c adopt isomeric structures that are in dynamic equilibrium. At 23 °C, 2a-c/1000 MAO catalyst systems furnished high molecular weight polyethylene with narrow molecular weight distributions (Mw/Mn = 2.7-2.8). At 100 °C, 2a-c/MAO exhibit increased polymerization activity at 100 °C and 2c/1000 MAO produced polyethylene with molecular weight distribution (Mw/Mn = 2.1) close to that found for single-site catalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 692, Issue 24, 15 November 2007, Pages 5375-5382
نویسندگان
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