Polyolefin copolymers containing p-methylstyrene units: Preparation by metallocene catalysts and application in the functionalization of polyolefins

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Abstract

This paper discusses a new functionalization approach, involving p-methylstyrene (p-MS) "reactive" comonomer. Comparing with other relative styrenic comonomers, i.e. styrene, o-methylstyrene and m-methylstyrene, p-MS shows significantly higher reactivity in metallocene catalysis. The resulting co-and ter-polymers, covering from semicrystalline thermoplastics (PE) to amorphous elastomers (EP and EO), exibit narrow composition and molecular weight distributions. In turn, the incorporated p-MS units in polyolefins, are very versatile, which not only can be interconverted to various functional groups, such as -OH, -NH2, -COOH, anhydride, silane and halides, but also can be conviniently transformed to "stable" aniomc initiators for "living" anionic graft-from polymerization reactions. Many new functional polyolefin graft copolymers have been prepared, containing polyolefin backbone (PE, EP, EO, etc.) and functional polymer side chains, such as PMMA, PAN, PS, etc..

Original languageEnglish (US)
Pages (from-to)104-127
Number of pages24
JournalACS Symposium Series
Volume749
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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