About the Mechanism of Cationic Polymerization of P-Ethylstyrene in the Presence of a Complex Catalyst Boron Fluoride – Water

2019 ◽  
pp. 3-4
Author(s):  
Alexandr Rakhimov ◽  
Keyword(s):  
Cationic Polymerization ◽  
Complex Catalyst ◽  
Boron Fluoride

CATIONIC POLYMERIZATION OF ETHYLENE OXIDE: IV. THE PROPAGATION REACTIONS

1960 ◽  
Vol 38 (10) ◽  
pp. 1967-1975 ◽  
Author(s):  
G. T. Merrall ◽  
G. A. Latrémouille ◽  
A. M. Eastham
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Cationic Polymerization ◽  
Chain Growth ◽  
Low Molecular Weight ◽  
Boron Fluoride

Studies of the boron-fluoride-catalyzed reaction of ethylene oxide with simple alcohols and low molecular weight polyglycols indicate three ways in which chain growth could occur, but only one of these is considered to be important after the initial stages of polymerization. The rate of disappearance of monomer reaches a maximum at a molecular weight of about 400. A mechanism is proposed to account for both polymerization and depolymerization and it is shown how equilibrium between these two reactions could result.

Cationic polymerization of 3-azidomethyl-3-methyloxetane in the presence of the boron fluoride etherate—ethylene glycol system

2010 ◽  
Vol 52 (3-4) ◽  
pp. 144-150 ◽  
Author(s):  
A. E. Tarasov ◽  
Ya. I. Estrin ◽  
O. M. Ol’khova ◽  
V. P. Lodygina ◽  
E. R. Badamshina
Keyword(s):  
Ethylene Glycol ◽  
Cationic Polymerization ◽  
Boron Fluoride

scholarly journals ENERGY OF THE INITIATION REACTION OF CATIONIC POLYMERIZATION OF 2-METHYLPENTENE-1 IN THE PRESENCE OF AQUACOMPLEX OF ETHYLALUMINUM CHLORIDE AND HEPTANE

2021 ◽  
pp. 39-45
Author(s):  
V. A. Babkin ◽  
D. S. Andreev ◽  
A. V. Ignatov ◽  
E. S. Titova ◽  
V. T. Fomichev ◽  
...  
Keyword(s):  
Ab Initio ◽  
Cationic Polymerization ◽  
Energy Barrier ◽  
Stoichiometric Composition ◽  
Complex Catalyst ◽  
Initiation Mechanism ◽  
Initiation Reaction

The ab initio 3.21G method was used to study the initiation mechanism of 2-methylpentene-1 under the action of a complex catalyst AlClCH - HO in heptane of stoichiometric composition 1:1:1:1. The energetics of this reaction is estimated, the values of its energy barrier and enthalpy are obtained.

scholarly journals STUDY OF THE MECHANISM OF CATION POLYMERIZATION n-METHYLSTYROL IN THE PRESENCE OF AN INTEGRATED CATALYST ALUMINUM CHLORIDE - HYDROCHLORIC ACID IN TOLUENE BY AB INITIO METHOD

2020 ◽  
pp. 38-48
Author(s):  
V. A. Babkin ◽  
D. S. Andreev ◽  
A. V. Ignatov ◽  
A. N. Liberovskaya ◽  
V. S. Belousova ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Ab Initio ◽  
Aluminum Chloride ◽  
Cationic Polymerization ◽  
Stoichiometric Composition ◽  
Quantum Chemical Study ◽  
Chemical Study ◽  
Ab Initio Method ◽  
Complex Catalyst ◽  
First Time

For the first time, a quantum-chemical study of the mechanism of initiation of the cationic polymerization monomer of p-methylstyrene in the presence of a complex catalyst of aluminum chloride - hydrochloric acid in toluene with a stoichiometric composition of 1:1:1 by the ab initio method with the reaction coordinate RC1-H20 was performed. The reaction is exothermic . The activation energy of the reaction is 14 kJ/mol, and the thermal effect is -110 kJ/mol.

Cationic Polymerization of Styrene with Boron Fluoride-Etherate in Liquid Sulfur Dioxide.

1961 ◽  
Vol 64 (4) ◽  
pp. 717-720
Author(s):  
Niichiro TOKURA ◽  
Ryuzo ASAMI ◽  
Minoru MATSUDA ◽  
Haruo NEGISHI
Keyword(s):  
Sulfur Dioxide ◽  
Cationic Polymerization ◽  
Liquid Sulfur ◽  
Boron Fluoride

Epoxy-titania composites of cationic polymerization: synthesis conditions and properties

2015 ◽  
Vol 37 (4) ◽  
pp. 402-407
Author(s):  
S.V. Zhil’tsova ◽  
◽  
V.M. Mikhal’chuk ◽  
N.G. Leonova ◽  
R.I. Lyga ◽  
...  
Keyword(s):  
Cationic Polymerization ◽  
Synthesis Conditions
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