The crystallization rates of fractions of poly(ethylene oxide) have been studied microseopically and dilatometrically. Nucleation theory has been adapted to take account of the finite molecular weight and the molecular weight distribution of the fractions. It is found that the free energy of formati
The fractional crystallization of poly(ethylene oxide)
β Scribed by C. Booth; C. Price
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- English
- Weight
- 284 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
Raman longitudinal acoustic mode (LAM) spectra have been obtained during isothermal crystallization from the melt at various temperatures of a poly(ethylene oxide) (PEO) fraction of molecular weight about 3000 and an a,v-methoxylated fraction (MPEO) derived from it. For both fractions, we find that
## Abstract The crystallization kinetics of a range of fractions of poly(ethylene oxide) are presented and analyzed. It is concluded that deviations from the Avrami equation with exponent of 3 are mainly due to rejection of low molecular weight molecules for the low molecular weight fractions (__MΜ
A two-stage stable system of isotactic polypropylene-poly(ethylene oxide) blend, in which poly(ethylene oxide) can be permanent either in molten or in crystallized states in the temperature range from 280 to 327 K, was described. The behavior of that blend was explained in terms of fractionated crys