Molecular motions at low temperature observed by positron annihilation
โ Scribed by Chunqing He; Takenori Suzuki; Lin Ma; Masaru Matsuo; V.P Shantarovich; Kenjiro Kondo; Yasuo Ito
- Book ID
- 108443267
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 105 KB
- Volume
- 304
- Category
- Article
- ISSN
- 0375-9601
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๐ SIMILAR VOLUMES
The lifetimes of positrons have been measured for network polymers based on polyethers. From the temperature dependence of the lifetime of ortho-positronium (o-Ps), t 3 , for the network polymer of poly(ethylene oxide-co-propylene oxide) [P(EO/ PO)], an onset temperature for limited local motions of
The irradiation effect of 7-rays on polypropylene (PP) has been studied through relaxational behaviour, using the positron annihilation lifetime (PAL) method. At low temperature, the intensity of a long-lived component of positronium, I3, for unirradiated PP samples increased due to a termination of