Synthesis of polyetherols from melamine and propylene carbonate. II
✍ Scribed by Mieczysław Kucharski; Dorota Kijowska
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 186 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0021-8995
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## Abstract The kinetics of initial steps of formation of polyetherols in the reaction between melamine and ethylene carbonate in dimethylsulfoxide in presence of 1,4‐diazabicyclo[2.2.2]octane (DABCO) as catalyst was studied. Based upon kinetic studies performed with various concentrations of melam
## Abstract Some results are presented on the applications of polyetherols obtained in reactions of melamine with alkylene carbonates for preparation of foamed polyurethanes. Physical properties of the polyetherols and the parameters of their use are evaluated. Selected properties of polyurethane f
Polyetherols containing s-triazine rings can be obtained in reactions of oxiranes with melamine derivatives. A report on the attempt to replace pentakis(methoxymethyl)melamine with bis(methoxymethyl)melamine in the synthesis is presented. The replacement simplified the procedure by eliminating the s