TY - JOUR
T1 - Olefin polymerization with titanium tetrachloride catalysts supported on surface‐modified silica
AU - Lee, Dong‐ho ‐h
AU - Yoon, Keun‐byoung ‐b
AU - Kang, Kyung‐seok ‐s
PY - 1995/3
Y1 - 1995/3
N2 - After modification of silica with benzoyl chloride (BC) to obtain BC‐modified SiO2 (BC‐SiO2), BC‐SiO2/TiCl4 and BC‐SiO2/BEM/TiCl4 catalysts were prepared by treating the BC‐SiO2 with TiCl4 directly or with butylethylmagnesium (BEM) followed by TiCl4, respectively. During the modification, BC reacts with hydroxyl groups of silica. In this way the corresponding ester is anchored on the silica surface and the CO group is coordinated with Ti and/or Mg. In addition, BEM is converted to MgCl2 in the reaction with TiCl4. These catalysts have reasonable activities for ethylene or propene polymerization.
AB - After modification of silica with benzoyl chloride (BC) to obtain BC‐modified SiO2 (BC‐SiO2), BC‐SiO2/TiCl4 and BC‐SiO2/BEM/TiCl4 catalysts were prepared by treating the BC‐SiO2 with TiCl4 directly or with butylethylmagnesium (BEM) followed by TiCl4, respectively. During the modification, BC reacts with hydroxyl groups of silica. In this way the corresponding ester is anchored on the silica surface and the CO group is coordinated with Ti and/or Mg. In addition, BEM is converted to MgCl2 in the reaction with TiCl4. These catalysts have reasonable activities for ethylene or propene polymerization.
UR - http://www.scopus.com/inward/record.url?scp=84986859397&partnerID=8YFLogxK
U2 - 10.1002/marc.1995.030160312
DO - 10.1002/marc.1995.030160312
M3 - Article
AN - SCOPUS:84986859397
SN - 1022-1336
VL - 16
SP - 223
EP - 227
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 3
ER -