| タイトル | Microstructural Characterization of Polymers by Positron Lifetime Spectroscopy |
| 本文（外部サイト） | http://hdl.handle.net/2060/19960054347 |
| 著者（英） | Singh, Jag J. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1996-01-01
1996 |
| 言語 | eng |
| 内容記述 | Positrons provide a versatile probe for monitoring microstructural features of molecular solids. In this paper, we report on positron lifetime measurements in two different types of polymers. The first group comprises polyacrylates processed on earth and in space. The second group includes fully-compatible and totally-incompatible Semi-Interpenetrating polymer networks of thermosetting and thermoplastic polyimides. On the basis of lifetime measurements, it is concluded that free volumes are a direct reflection of physical/electromagnetic properties of the host polymers. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | 96N36521
NASA-TM-110469
NAS 1.15:110469 |
| 権利 | No Copyright |
