𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of polyetherols with isocyanuric ring: Kinetics and mechanisms of reactions in the presence of DABCO as catalyst

✍ Scribed by Jacek Lubczak

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
344 KB
Volume
42
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

To establish the mechanism of reaction of formation of oligoetherols with perhydro‐1,3,5‐triazine ring, the kinetics of reaction of isocyanuric acid and 1,3,5‐tris(2‐hydroxyetyl) isocyanurate with ethylene carbonate resulting in formation of polyetherols in the presence of diazabicyclo[2.2.2]octane as a catalyst has been investigated. The kinetic and mechanistic studies revealed that the initial step of reaction is zero order related to ethylene carbonate and the reaction is inhibited by imide groups of isocyanuric acid. The mechanism of reaction was confirmed by spectroscopic and electrochemical methods. Β© 2010 Wiley Periodicals, Inc. Int J Chem Kinet 42: 550–561, 2010

πŸ“œ SIMILAR VOLUMES

Synthesis of polyetherols with isocyanur
Synthesis of polyetherols with isocyanuric ring. Kinetics and mechanisms of reactions, part 1: Reaction between isocyanuric acid and ethylene carbonate
✍ Jacek Lubczak; Elwira WΔ™glowska πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 212 KB

## Abstract The reaction between isocyanuric acid and ethylene carbonate results in the formation of polyetherols. The kinetic and mechanistic studies revealed that the initial step of the reaction is zero order related to ethylene carbonate. The rate‐limiting step is the decomposition of an interm

Synthesis of polyetherols with isocyanur
Synthesis of polyetherols with isocyanuric ring. Kinetics and mechanisms of reactions, part 2: Consecutive reaction of ethylene carbonate with isocyanuric acid
✍ Jacek Lubczak; Elwira WΔ™glowska πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 140 KB

## Abstract The kinetics and mechanism of the reaction between isocyanuric acid and ethylene carbonate was studied. The multistep reaction in the presence of potassium carbonate as catalyst leads to polyetherols. The imide and hydroxyl groups of intermediates react with ethylene carbonate by slight

Synthesis of polyetherols with purine ri
Synthesis of polyetherols with purine ring. Kinetics and mechanisms of reactions, part 2: Reactions in the presence of triethylamine
✍ Irmina Cisek-Cicirko; Jacek Lubczak πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 179 KB

## Abstract The kinetics and mechanism of reaction between hydroxymethyl derivatives of uric acid and oxiranes in the presence of triethylamine as catalyst was studied. The formation of polyetherols was inhibited in initial steps of the reaction. Two different mechanisms were established for the re

Synthesis of polyetherols with purine ri
Synthesis of polyetherols with purine ring. Kinetics and mechanisms of reactions, part 1: Reaction of hydroxymethyl derivatives of uric acid with oxiranes
✍ Irmina Cisek-Cicirko; Jacek Lubczak πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 133 KB

## Abstract The kinetics and mechanisms of the initial steps of formation of polyetherols from hydroxymethyl derivatives of uric acid and oxiranes were studied. It has been found that initial steps of the reaction of polyetherol formation occur without a catalyst. The NH groups, which are formed up

The kinetics of oxirane reaction with al
The kinetics of oxirane reaction with alkanethiols in the presence of basic catalysts
✍ Jan Chlebicki; Zbigniew Cichacz πŸ“‚ Article πŸ“… 1988 πŸ› John Wiley and Sons 🌐 English βš– 379 KB

Rate constants for the reactions of oxirane with alkanethiols in the presence of basic catalyst were studied at the temperature range of 20-50Β°C. A mechanism of these reactions has been proposed and appropriate kinetic equatlon has been presented.