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Synthesis of polyethylene using ultrasonic energy with a metallocene catalyst
Author(s) -
Bahattab Mohammed A.
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23977
Subject(s) - metallocene , ultrasonic sensor , polyethylene , materials science , polymer , molar mass distribution , post metallocene catalyst , polymer chemistry , catalysis , composite material , chemical engineering , polymerization , organic chemistry , chemistry , physics , acoustics , engineering
Ethylene polymer was synthesized by the treatment of a metallocene catalyst Zr(CP) 2 Cl 2 solution with ultrasonic energy. Ultrasonic energy irradiation was used to change the polymer structure of the formed polymer. Different ultrasonic energy irradiation times were applied to the metallocene catalyst solution. The ultrasonic energy had an effect on the average molecular weight, molecular weight distribution, and polymer productivity. A lower average molecular weight and a narrower molecular weight distribution were produced with a longer ultrasonic irradiation time. The polymer productivity was almost constant when the metallocene catalyst was treated with ultrasonic energy. Finer polyethylene particles were produced with longer ultrasonic irradiation times. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 756–759, 2006