Ternpernture dependent ESR relaxation measurements made on the excited triplet state of pyrene-d-10 show ;L decrease in Tie with decrease in temperature from 300°K to SOOK. Optical measurements suggest the relnxation arises from exciton motion in the host crystal fluorene.
✦ LIBER ✦
Time-Temperature Independence of Aging-Induced Relaxation Peak in the Glassy State
✍ Scribed by Xiaorong Wang
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 280 KB
- Volume
- 23
- Category
- Article
- ISSN
- 1022-1336
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The linear viscoelastic behavior of a poly(paraphenylene) with a benzoyl substituent has been examined using tensile, dynamic mechanical, and creep experiments. This amorphous polymer was shown to have a tensile modulus of 1-1.5 Msi, nearly twice that of most common engineering thermoplastics. The r