The influence of temperature conditions in the preparation of polyurethanes on branching and properties of the polymers
β Scribed by V.P. Dorozhkin; V.I. Kimel'blat; P.A. Kirpichnikov
- Book ID
- 118966915
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 551 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0032-3950
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π SIMILAR VOLUMES
Thermoplastic polyurethane elastomers (TPUs) of constant composition were prepared by using the prepolymer method and by changing the reaction conditions (prepolymerization and chain-extension time) to study the influence of these conditions on the final TPU properties. The TPUs were characterized b
## Abstract The formalized kinetic approach to the mechanism of urethane formation in the system of prepolymer with end NCO groupsβ1,4βbutanediol together with the dispersion analysis of kinetic curves have helped to establish that, at moderate temperatures, the mechanism may be represented by a sc