Kinetic Study on Stereospecific Polymerization of 1,3-Butadiene Using a Nickel Based Catalyst System in Environmentally Friendly Solvent

2012 ◽  
Vol 51 (34) ◽  
pp. 11066-11071 ◽  
Author(s):  
Archana Singh ◽  
Ankur Chavda ◽  
Subrahmanyam Nandula ◽  
Raksh Vir Jasra ◽  
Madhuchhanda Maiti
Keyword(s):  
Kinetic Study ◽  
Environmentally Friendly ◽  
Catalyst System ◽  
Stereospecific Polymerization

A kinetic study of the stereospecific polymerization of propylene

1962 ◽  
Vol 27 (12) ◽  
pp. 2872-2877 ◽  
Author(s):  
J. Ambrož ◽  
L. Ambrož ◽  
P. Osecký ◽  
K. Veselý
Keyword(s):  
Kinetic Study ◽  
Stereospecific Polymerization

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.

Stereospecific polymerization of N-vinylcarbazole by ZnEt2CoCl2-pyridine catalyst system

Polymer ◽  
1981 ◽  
Vol 22 (10) ◽  
pp. 1319-1323 ◽  
Author(s):  
Mukul Biswas ◽  
Girish Chandra Mishra
Keyword(s):  
Catalyst System ◽  
Stereospecific Polymerization

Cyclopentyl methyl ether–NH4X: a novel solvent/catalyst system for low impact acetalization reactions

2015 ◽  
Vol 17 (6) ◽  
pp. 3281-3284 ◽  
Author(s):  
Ugo Azzena ◽  
Massimo Carraro ◽  
Ashenafi Damtew Mamuye ◽  
Irene Murgia ◽  
Luisa Pisano ◽  
...  
Keyword(s):  
Methyl Ether ◽  
Reaction Medium ◽  
Environmentally Friendly ◽  
Catalyst System ◽  
Ammonium Salts

Cyclopentyl methyl ether and ammonium salts provide an environmentally friendly reaction medium for the synthesis of acetals.

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