Rheo-optical properties of polymers. X. Relaxation
โ Scribed by Legrand, D. G. ;Haaf, W. R.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2007
- Weight
- 371 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0449-2994
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## Abstract Stress and birefringence relaxation have been measured for two polyurethane block polymers at several temperatures to 140ยฐC. Superposition of the stress curves is possible, but the existence of multiple relaxation mechanisms makes such a process of questionable validity. Simple superpos