Journal
POLYMER
Volume 42, Issue 8, Pages 3649-3655Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(00)00692-3
Keywords
processing; modification; maleic anhydride
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A series of poiyolefins 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. (C) 2001 Elsevier Science Ltd. All rights reserved.
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