کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5189831 1381193 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Olefin polymerisation with hafnocenes: A bridged alicyclic alcohol as a ligand and as the hafnocene modifier
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Olefin polymerisation with hafnocenes: A bridged alicyclic alcohol as a ligand and as the hafnocene modifier
چکیده انگلیسی

Homogeneous ethylene and propylene polymerisation with new mixed-ligand chloroalcoholate of hafnocene was investigated. The catalytic activity of the complex was studied in comparison with Cp2HfCl2 pre-treated with 2-methyladamantan-2-ol in different molar ratios. The addition of the bridged alicyclic alcohol to the metallocene does not deactivate the catalytic system, but results similar to those obtained with the corresponding mixed-ligand hafnocenes were obtained. The voluminous alcoholato-moiety makes part of the [MAdO–MAO]− counter-ion where it promotes regioerrors in the growing polymer chain. The X-ray structure of new complex was determined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 23, 14 November 2005, Pages 9626–9631