scholarly journals Mechanism of Introduction of Polar Monomers into Living Polypropylene with Tris(2-methyl-1,3-butandionato)vanadium/Diethyl Aluminum Chloride Catalyst System

2005 ◽  
Vol 62 (2) ◽  
pp. 69-74
Author(s):  
Kunihiko IMANISHI ◽  
Satoshi UEKI
Keyword(s):  
Aluminum Chloride ◽  
Catalyst System ◽  
Chloride Catalyst ◽  
Polar Monomers

scholarly journals A Highly Efficient Aromatic Amine Ligand/Copper(I) Chloride Catalyst System for the Synthesis of Poly(2,6-dimethyl-1,4-phenylene ether)

Polymers ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 350 ◽  
Author(s):  
Kisoo Kim ◽  
Min Shin ◽  
Yong Kim ◽  
Joong-In Kim ◽  
Young Kim
Keyword(s):  
Aromatic Amine ◽  
Catalyst System ◽  
Highly Efficient ◽  
Chloride Catalyst ◽  
Amine Ligand

scholarly journals Investigation of a Ziegler–Natta catalyst system derived from a mixture of lithium tetraalkylaluminate, aluminum chloride, and titanium tetrachloride and its usefulness in polymerizations involving styrene

1981 ◽  
Vol 59 (10) ◽  
pp. 1425-1432 ◽  
Author(s):  
Anu Mishra
Keyword(s):  
Aluminum Chloride ◽  
Titanium Tetrachloride ◽  
Active Catalyst ◽  
Catalyst System ◽  
Active Components ◽  
Vinyl Ethers ◽  
Natta Catalyst ◽  
Stereospecific Polymerization ◽  
Derivatives Of ◽  
Ziegler Natta Catalyst

Vinyl ethers, 1-olefins, and styrene were homo- and copolymerized by the use of catalyst derived from a mixture of lithium tetraalkylaluminate (LiAlR4), aluminum chloride (AlCl3), and titanium tetrachloride (TiCl4), in order to determine the nature of the active components present.It is postulated that the active catalyst in the stereospecific polymerization of vinyl ethers is ether-coordinated TiCl3•LiCl, while in the polymerization of 1-olefins and styrene, it is the alkylated derivatives of TiCl3•LiCl.For homo- and copolymerization of styrene, AlR3 seems to be the preferred alkylating agent. About 3 to 4 equivalents of AlR3 are needed for complete alkylation of TiCl3•LiCl, probably due to heterogeneity of the system.Highly isotactic polystyrene and copolymers of styrene with 1-olefins can be prepared in good yields by the use of this catalyst.

Catalytic degradation of polystyrene in the presence of aluminum chloride catalyst

1987 ◽  
Vol 19 (1) ◽  
pp. 61-76 ◽  
Author(s):  
Hidesaburo Nanbu ◽  
Yoshimasa Sakuma ◽  
Yumiko Ishihara ◽  
Tomoyuki Takesue ◽  
Tadashi Ikemura
Keyword(s):  
Aluminum Chloride ◽  
Catalytic Degradation ◽  
Chloride Catalyst

scholarly journals Ring Formation of Propylene by Evaporated Aluminum Chloride Catalyst

1964 ◽  
Vol 85 (12) ◽  
pp. 819-823,A64
Author(s):  
Toshinobu IMANAKA ◽  
Keiichi KISHIMOTO
Keyword(s):  
Aluminum Chloride ◽  
Ring Formation ◽  
Chloride Catalyst

Electronic Spectra of Carbonium Ions by Internal Reflection Spectroscopy

1969 ◽  
Vol 23 (2) ◽  
pp. 165-168 ◽  
Author(s):  
Grady L. Roberts
Keyword(s):  
Hydrogen Chloride ◽  
Aluminum Chloride ◽  
Electronic Spectra ◽  
Methylene Chloride ◽  
Internal Reflection ◽  
Reaction Intermediates ◽  
Reflection Spectroscopy ◽  
Carbonium Ions ◽  
Chloride Catalyst ◽  
Internal Reflection Spectroscopy

Problems are frequently encountered in using conventional transmission spectrophotometry for obtaining the electronic spectra of unstable reaction intermediates such as carbonium ions. Hence, an investigation of the use of internal reflection spectroscopy (IRS) was conducted. A comparison was made of the transmission and internal reflection spectra of triphenyl carbonium and methylbenzenonium ions. The internal reflection technique was also used to obtain the spectrum of organic ions formed by the reaction of ethylbenzene with aluminum chloride and hydrogen chloride. The reaction of ethylbenzene with methylene chloride in the presence of aluminum chloride—hydrogen chloride catalyst was followed by IRS. The results showed that IRS is a valuable technique for investigating certain unstable reaction intermediates.

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