Dielectric and viscoelastic studies of poly(ethyl methacrylate) containing cholesteric compounds
β Scribed by Dinkar D. Deshpande; Chandana Basu; Madhav V. Pandya
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 452 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0959-8103
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The glass transition relaxations of different blends of poly(viny1 acetate) and poly(ethy1 methacrylate) have been investigated by dielectric relaxation spectroscopy in the frequency range from 20 Hz to 1 MHz. The obtained results suggest that the poly(viny1 acetate)-rich blends show immiscibility b
## Abstract Plasticization of poly(ethyl methacrylate) (PEMA) by CO~2~ is investigated by dielectric relaxation spectroscopy. The dissipation factor of a dielectric cell containing the film and air gaps is measured as a function of frequency (1β10,000 kHz) and CO~2~ pressure (0β60 atm) over the tem