Abstract
Polyethylene (PE) particles are produced by a catalyst prepared by contacting a (C4H9Cp)2-ZrCl2/MAO pre-mixing solution with SiO2 support. These particles have a large granular size and very few fine particles compared with those derived from a catalyst prepared by adsorption of (C4H9Cp)2ZrCl2 onto methylaluminoxane modified SiO2. The amount of Al in the pre-mixing catalyst has an important effect on its activity and the PE particle size distribution. The optimal concentration is about 30 wt.-%. The PE particles produced using a premixing catalyst consist of globules with randomly oriented fiber structure on the surface, whereas those produced using adsorption catalysts have worm-like fibrils protruding from the PE globule surface.
| Original language | English |
|---|---|
| Pages (from-to) | 1058-1062 |
| Number of pages | 5 |
| Journal | Macromolecular Rapid Communications |
| Volume | 21 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 2000 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry
Cite this
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Silica-supported metallocenes : Effect of the preparation procedure on the morphology of polyethylene particles. / Lin, Chiu Hsun; Sheu, Chyi Yang.
In: Macromolecular Rapid Communications, Vol. 21, No. 15, 01.01.2000, p. 1058-1062.Research output: Contribution to journal › Article
TY - JOUR
T1 - Silica-supported metallocenes
T2 - Effect of the preparation procedure on the morphology of polyethylene particles
AU - Lin, Chiu Hsun
AU - Sheu, Chyi Yang
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Polyethylene (PE) particles are produced by a catalyst prepared by contacting a (C4H9Cp)2-ZrCl2/MAO pre-mixing solution with SiO2 support. These particles have a large granular size and very few fine particles compared with those derived from a catalyst prepared by adsorption of (C4H9Cp)2ZrCl2 onto methylaluminoxane modified SiO2. The amount of Al in the pre-mixing catalyst has an important effect on its activity and the PE particle size distribution. The optimal concentration is about 30 wt.-%. The PE particles produced using a premixing catalyst consist of globules with randomly oriented fiber structure on the surface, whereas those produced using adsorption catalysts have worm-like fibrils protruding from the PE globule surface.
AB - Polyethylene (PE) particles are produced by a catalyst prepared by contacting a (C4H9Cp)2-ZrCl2/MAO pre-mixing solution with SiO2 support. These particles have a large granular size and very few fine particles compared with those derived from a catalyst prepared by adsorption of (C4H9Cp)2ZrCl2 onto methylaluminoxane modified SiO2. The amount of Al in the pre-mixing catalyst has an important effect on its activity and the PE particle size distribution. The optimal concentration is about 30 wt.-%. The PE particles produced using a premixing catalyst consist of globules with randomly oriented fiber structure on the surface, whereas those produced using adsorption catalysts have worm-like fibrils protruding from the PE globule surface.
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U2 - 10.1002/1521-3927(20001001)21:15<1058::AID-MARC1058>3.0.CO;2-K
DO - 10.1002/1521-3927(20001001)21:15<1058::AID-MARC1058>3.0.CO;2-K
M3 - Article
AN - SCOPUS:23044523420
VL - 21
SP - 1058
EP - 1062
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
SN - 1022-1336
IS - 15
ER -