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Maleic anhydride homopolymerization during melt functionalization of isotactic polypropylene

✍ Scribed by B. De Roover; J. Devaux; R. Legras

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 590 KB
Volume: 34
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(199605)34:7<1195::aid-pola5>3.0.co;2-2

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✦ Synopsis

The homopolymerization of maleic anhydride was attempted at 190°C, during the meltfunctionalization of polypropylene, either with or without organic peroxide using a Brabender plastograph. The free radical homopolymerization of pure maleic anhydride was also attempted either with or without organic peroxide, at 190°C, in vacuum-sealed glass vials. In all cases, free low molecular weight maleic anhydride oligomers were observed by low molecular weight size exclusion chromatography (SEC). This maleic anhydride homopolymerization tends to prove that the ceiling temperature of poly(ma1eic anhydride) probably lies above the previously published value of 16OoC for these specific experimental conditions.

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