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Effect of polyolefin structrure on maleic anhydride grafting

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
42
Issue
8
Identifiers
DOI: 10.1016/s0032-3861(00)00692-3
Keywords
  • Processing
  • Modification
  • Maleic Anhydride
Disciplines
  • Chemistry

Abstract

Abstract A series of polyolefins with different ethene/propene ratios was grafted with maleic anhydride (MA) both in the melt and in solution. The MA graft content and the degree of branching/crosslinking or degradation were determined by FT-IR and rheometry, respectively. The MA graft content is low for polyolefins with high propene content, increases as the propene content decreases and reaches a plateau at propene levels below 50 wt.%. Branching/crosslinking occurs for polyolefins with low propene content, while degradation is the main side reaction for polyolefins with a high propene content. A detailed chemical mechanism is proposed to explain these results.

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