کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1397045 984213 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polymerization of hydroxyl functional polypropylene by metallocene catalysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Polymerization of hydroxyl functional polypropylene by metallocene catalysis
چکیده انگلیسی

Propylene was copolymerized with 10-undecen-1-ol with use of dimethylsilanyl-bis-(2-methyl-4-phenyl-1-indenyl)zirconium dichloride as catalyst activated with methylaluminoxane (MAO) and triisobutylaluminum (TIBA). Comonomer incorporations as high as 2.0 mol% or 8.2 wt% were obtained without serious activity losses. Concentration of MAO, aluminum/comonomer ratio and pressure had some effect on polymerization activity and yield. However, changing the proportion of MAO in the cocatalyst mixture of MAO and TIBA proved to be most efficient way to enhance polymerization activity. Still, the result was a compromise between high functionality content, polymerization activity and molecular weight.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 41, Issue 12, December 2005, Pages 2861–2866
نویسندگان
, , ,