Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5203992 | Polymer Degradation and Stability | 2009 | 6 Pages |
Abstract
Neat and multiple processed polypropylene impact-copolymer (ICPP) were fractionated using series of hydrocarbon solvents with increasing solvent power. The analyses of the fractions obtained in successive extractions showed significant decrease in weight-average molecular weight (Mw) and narrowing the molecular weight distribution (MWD) of investigated samples after extrusions. Although the changes due to thermooxidation were observed in all phases of the system, the most intensive degradation was found in the prevailing PP homopolymer phase.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
SoÅa Hermanová, JiÅà TocháÄek, Josef JanÄáÅ, Jan Kalfus,