Ansa-zirconocene diamide complex rac-Me 2 Si(CMB) 2 Zr(NMe 2 ) 2 (rac-1, CMB ฯญ 1-C 5 H 2 -2-Me-4-t Bu) reacts with AlR 3 (R ฯญ Me, Et, i-Bu) and then with [CPh 3 ] ฯฉ [B(C 6 F 5 ) 4 ] ฯช (2) in toluene in order to in situ generate cationic alkylzirconium species. In the sequential NMR-scale reactions o
Polymerization of ethylene with (C5Me5)2Zr(NMe2)2 cocatalyzed by common alkyl aluminums
โ Scribed by Il Kim; Chang-Sik Ha
- Book ID
- 108211229
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 141 KB
- Volume
- 210
- Category
- Article
- ISSN
- 1381-1169
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๐ SIMILAR VOLUMES
The kinetics of propylene polymerization initiated by ansa-metallocene diamide compound rac-Me 2 Si(CMB) 2 Zr(NMe 2 ) 2 (rac-1, CMB ฯญ 1-C 5 H 2 -2-Me-4-t Bu)/ methylaluminoxane (MAO) catalyst were investigated. The formation of cationic active species has been studied by the sequential NMR-scale rea
Polymerizations of higher โฃ-olefins, 1-pentene, 1-hexene, 1-octene, and 1-decene were carried out at 30 ยฐC in toluene by using highly isospecific rac-Me 2 Si(1-C 5 H 2 -2-CH 3 -4-t Bu) 2 Zr(NMe 2 ) 2 (rac-1) compound in the presence of Al(iBu) 3 / [CPh 3 ][B(C 6 F 5 ) 4 ] as a cocatalyst formulation