Thermal degradation and kinetics of poly(4-methyl-1-pentene) were investigated by nonisothermal high-resolution thermogravimetry at a variable heating rate. Thermal degradation temperatures are higher, but the maximum degradation rates are lower in nitrogen than in air. The degradation process in ni
Epitaxial crystallization of isotactic poly(4-methyl-pentene-1)
โ Scribed by C. Mathieu; A. Thierry; J. C. Wittman; B. Lotz
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 502 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0887-6266
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## SYNOPSIS Sorption and volume dilation isotherms of semicrystalline poly(4-methyl-1-pentene) (PMP) were measured using COP and C3Hs as penetrants, which have sieving diameters of 3.3 and 4.3 A, respectively. On the other hand, the PMP crystal has a void width of approximately 4 A as estimated by
## SYNOPSIS The fluorinated surface layer of poly (4-methyl-1-pentene) membranes exposed to a dilute stream of fluorine gas has been characterized with X-ray photoelectron spectroscopy. The concentration and profile of reacted fluorine as a function of exposure time is determined. A computer rout