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New Synthesis Method Using Magnesium Alkoxides as Carrier Materials for Ziegler‐Natta Catalysts with Spherical Morphology
Author(s) -
Tanase Shohjiroh,
Katayama Kiyokazu,
Inasawa Susumu,
Okada Fumio,
Yamaguchi Yukio,
Sadashima Takanori,
Yabunouchi Nobuhiro,
Konakazawa Takehito,
Junke Tadanori,
Ishihara Nobuhide
Publication year - 2008
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.200700040
Subject(s) - magnesium , catalysis , materials science , chemical engineering , metal , particle size , particle (ecology) , morphology (biology) , polymer chemistry , organic chemistry , chemistry , metallurgy , oceanography , biology , engineering , genetics , geology
Abstract In this study, novel carrier materials were synthesized by addition of metal dihalide compounds in the synthesis reaction of magnesium diethoxide using metallic magnesium, ethanol and iodine. Poly(propylene) polymerizations were then investigated with the MgCl 2 ‐supported TiCl 4 catalysts using these carrier materials. As results, magnesium diethoxide with extremely large particle sizes and spherical shapes were obtained and the angles of repose of PP particles obtained by using their catalysts as a flowability index showed high values. Furthermore, in order to confirm key points for excellent catalyst performance from detailed characterizations, SEM images, compositions and WAXS were measured.