Vibrational dynamics of solid poly(ethylene oxide)
โ Scribed by Krishnan, M.; Balasubramanian, S.
- Book ID
- 121478230
- Publisher
- The American Physical Society
- Year
- 2003
- Tongue
- English
- Weight
- 295 KB
- Volume
- 68
- Category
- Article
- ISSN
- 1098-0121
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Coefficients of expansion and int\_\_ernal pressures (P3 have been measured for samples of poly(ethylene oxide) of molecular weight (M,) 2000, 6000 and 20000. The values of P~ found for the solids (P~ < l0 s Pa, 10 ยฐ) are low compared to those found for the liquids (P~ = 5 x 10 s Pa, 70ยฐ).
A number of results reported on the kinetics of exchange of triblock copolymers poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide), PEO-PPO-PEO, between micelles and the intermicellar aqueous solution are reviewed and analyzed to extract the rate constants k(+) for the entry of a copoly
Abstraet~lnternal pressures (PD have been measured at low external pressure for solid poly(ethylene oxide) 6000 and solid poly(ethylene oxide) 6000 swollen with 5.ยฐ/> by weight liquid poly(ethylene oxide) 200. Values of Pi are low (Pi < 10 s Pa at 10'). The effect of swelling with liquid, which is l
Poly(ethylene oxide) (PEO) of molecular weight from 200,000 to 2,000,000 was crosslinked by exposure to ultraviolet radiation with a high-pressure 150 W mercury lamp. Photochemical crosslinking of PEO proceeds in the presence of photoinitiators such as benzophenone and acetophenone which act as a hy