Mechanism of stereoregular polymerization of acetaldehyde

1963 ◽  
Vol 4 (1) ◽  
pp. 281-287 ◽  
Author(s):  
Junji Furukawa ◽  
Takeo Saegusa ◽  
Hiroyasu Fujii
Keyword(s):  
Stereoregular Polymerization

Monomer-bound ion pairs in the stereoregular polymerization of propylene oxide by the Pruitt-Baggett catalyst

Polymer ◽  
1990 ◽  
Vol 31 (6) ◽  
pp. 1142-1148 ◽  
Author(s):  
S. Aksoy ◽  
H. Altinok ◽  
H. Tümtürk ◽  
K. Alyürük
Keyword(s):  
Propylene Oxide ◽  
Ion Pairs ◽  
Stereoregular Polymerization

Stereoregular Polymerization of Alkyl Propiolate Catalyzed by Rh Complex

1994 ◽  
Vol 31 (4) ◽  
pp. 465-475 ◽  
Author(s):  
Masayoshi Tabata ◽  
Yasuo Inaba ◽  
Kazuaki Yokota ◽  
Yuji Nozaki
Keyword(s):  
Stereoregular Polymerization

Polymethylaluminium oxide and stereoregular polymerization of propylene oxide

1993 ◽  
Vol 29 (5) ◽  
pp. 637-643 ◽  
Author(s):  
Z. Öktem ◽  
A. Sari ◽  
K. Alyürük
Keyword(s):  
Propylene Oxide ◽  
Stereoregular Polymerization

Stereoregular polymerization of butyl vinyl ether using the new AlCl3/LiAlH4initiator system

2003 ◽  
Vol 14 (11-12) ◽  
pp. 807-812
Author(s):  
Miklós Nagy ◽  
Sándor Kéki ◽  
György Deák ◽  
Miklós Zsuga
Keyword(s):  
Vinyl Ether ◽  
Stereoregular Polymerization

Stereoregular Polymerization of Butadiene with Alkylaluminum Chlorides and Cobalt Octoate

1966 ◽  
Vol 39 (3) ◽  
pp. 508-520 ◽  
Author(s):  
Morris Gippin
Keyword(s):  
Catalyst System ◽  
Tertiary Alcohol ◽  
Lewis Acidity ◽  
Polar Solvents ◽  
Co Catalyst ◽  
Organic Hydroperoxide ◽  
Butadiene Polymerization ◽  
Chloride Water ◽  
Stereoregular Polymerization ◽  
A Minor

Abstract The requirement of water or oxygen to activate the diethylaluminum chloride co-catalyst used with a cobalt compound to produce 98 per cent cis-1,4 poly-butadiene was reported previously. Activation is considered to form two alkylaluminum compounds differing in Lewis acidity. Several reactions presumed to lead to the formation of the higher acid were carried out with a minor proportion of the diethylaluminum chloride by partial dealkylation with organic hydroperoxide, halogen, tertiary alcohol, organic halide or aluminum. Water is neither necessary nor desirable in the ethylaluminum sesquichloride-cobalt octoate catalyst system. Polar solvents do not appreciably alter the cis-1,4 catalysis with diethylaluminum chloride/water/cobalt octoate, but do decrease the rate or extent of polymerization with increasing dielectric constant of the solvent. A mechanism of cobalt catalysis of butadiene polymerization is proposed.

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