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Additive group contributions to density and glass transition temperature in polyurethanes

✍ Scribed by Jeffry Fedderly; Eric Compton; Bruce Hartmann

Book ID
118285594
Publisher
Society for Plastic Engineers
Year
1998
Tongue
English
Weight
486 KB
Volume
38
Category
Article
ISSN
0032-3888

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Calculation of relaxation time in polyur
Calculation of relaxation time in polyurethanes using additive group contributions
✍ Bruce Hartmann; Gilbert F. Lee; John D. Lee; Jeffry J. Fedderly; Alan E. Berger πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 689 KB

The method of additive properties was used to calculate the dynamic mechanical relaxation time for a series of polyurethanes. Calculations were also made of density and glass transition temperature. Group contributions for nine component groups were determined. With these group values, the densities