| Autor: |
Goede, Stefan de, Brüll, Robert, Pasch, Harald, Marshall, Niall |
| Zdroj: |
Macromolecular Symposia; March 2003, Vol. 193 Issue: 1 p35-44, 10p |
| Abstrakt: |
Samples of a polypropylene homopolymer have been degraded and analysed with regard to chemical composition, molecular weight distribution and chemical composition distribution. FTIR shows the progress of degradation and a decrease in molecular weight can be observed from SEC. CRYSTAF shows that the chemical heterogeneity of the samples broadens with continuing degradation. SEC-FTIR reveals that the degraded species are mainly found in the low molecular end of the molecular weight distribution. The spatial heterogeneity of the degradation process has been proven by the analysis of abrased layers. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Plný text