Relaxation processes in polyethylene (PE) and polystyrene (PS) were studied by positron annihilation technique. For PE, above the glass transition temperature, T,, the size of free volumes and its concentration were increased by the micro-Brownian motion of molecules. For PS, local motions of molec
โฆ LIBER โฆ
Polyethylene-polystyrene gradient polymers III. Mechanical and rheo-optical studies of relaxation processes
โ Scribed by M. Pluta; P. Milczarek; M. Kryszewski
- Publisher
- Springer
- Year
- 1987
- Weight
- 622 KB
- Volume
- 265
- Category
- Article
- ISSN
- 0340-255X
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