Metallocene Catalytic Insertion Polymerization of 1-Silene to Polycarbosilanes
نویسندگان
چکیده
منابع مشابه
Metallocene Catalytic Insertion Polymerization of 1-Silene to Polycarbosilanes
Metallocene of zirconium were used as a catalyst for an insertion polymerization of 1-methylsilene directly into pre-ceramic precursor polyzirconocenecarbosilane (PZCS) during dechlorination of dichlorodimethylesilane by sodium, which exhibits high catalytic effectiveness with the maximum conversion ratio of polycarbosilane up to 91%. The average molecular weights of polymers synthesized are le...
متن کاملEffect of “Topotactic” Reduction Products on Catalytic Activity of Metallocene Catalyst for Olefin Polymerization
s of Doctor’s Thesises Effect of “Topotactic” Reduction Products on Catalytic Activity of Metallocene Catalyst for Olefin Polymerization Satoru Yamada † (Department of Chemistry for Materials)
متن کاملAdvances in non-metallocene olefin polymerization catalysis.
B. Anionic Ligands 302 IX. Group 9 Catalysts 302 X. Group 10 Catalysts 303 A. Neutral Ligands 303 1. R-Diimine and Related Ligands 303 2. Other Neutral Nitrogen-Based Ligands 304 3. Chelating Phosphorus-Based Ligands 304 B. Monoanionic Ligands 305 1. [PO] Chelates 305 2. [NO] Chelates 306 3. Other Monoanionic Ligands 306 4. Carbon-Based Ligands 306 XI. Group 11 Catalysts 307 XII. Group 12 Catal...
متن کاملInsertion polymerization of acrylate.
Multiple insertions of acrylate in copolymerization with ethylene, and an insertion homo-oligomerization of methyl acrylate were observed for the first time. Key to these findings, and to mechanistic insights reported, are labile-substituted complexes as catalyst precursors.
متن کاملMetallocene-catalyzed alkene polymerization and the observation of Zr-allyls.
Single-site polymerization catalysts enable exquisite control over alkene polymerization reactions to produce new materials with unique properties. Knowledge of catalyst speciation and fundamental kinetics are essential for full mechanistic understanding of zirconocene-catalyzed alkene polymerization. Currently the effect of activators on fundamental polymerization steps is not understood. Prog...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep16274