ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Both the pure anti (1) and an equimolar mixture of1 and the syn (2) diastereomers ofrac-[ethylidene(1-η 5-tetramethylcyclopentadienyl)(1-η 5-indenyl)titanium dichloride have been synthesized. The polymerization behaviors of the two systems, activated by methylaluminoxane (MAO), have been compared from -20°C to +25°C. The2/MAO catalyst has about 30% more active species, which polymerizes propylene 20 to 50% faster depending on T p , undergoes chain transfers less frequently, and produces PP of higher molecular weight than the1/MAO system.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01045636
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