✦ LIBER ✦

Particle morphology for polyolefins synthesized with supported metallocene catalysts

✍ Scribed by S. D. Naik; W. H. Ray

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 325 KB
Volume: 79
Category: Article
ISSN: 0021-8995
DOI: 10.1002/1097-4628(20010401)79:14<2565::aid-app1066>3.0.co;2-v

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✦ Synopsis

A detailed model describing particle growth and morphology in polyolefins synthesized using supported metallocene catalysts is presented. The multigrain model (MGM) is extended to consider metal extraction and the effects of polymer particle compressibility, in addition to monomer sorption and mass and heat transfer considerations. The effects of active metal extraction into the polymer phase and the pores of the particle on the kinetics of polymerization and morphological features of the polymer particle are studied. The effects of greater compressibility of polymer particles on morphological features such as particle porosity are studied. Model predictions for porosity and morphology are shown to reproduce similar trends as have been reported in experimental studies.

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