Polyolefins containing reactive p-methylstyrene groups

From high Tm thermoplastics to low Tg elastomers

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4 Citations (Scopus)

Abstract

This paper summarizes the experimental results in a new class of polyolefin co- and terpolymers containing `reactive' p-methylstyrene (p-MS) groups, which includes the materials from high Tm thermoplastics to low Tg elastomers. Due to the extraordinary copolymerization capability of metallocene catalysts with constrained ligand geometry, p-MS can be effectively copolymerized with α-olefins (i.e., ethylene, propylene, 1-octene, etc.) to form co- and terpolymers having narrow molecular weight and composition distributions. Comparing with other relative styrenic comonomers, i.e., styrene, o-methylstyrene and m-methylstyrene, p-MS shows significantly higher reactivity in metallocene catalysis. 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, -COOH, anhydride, silane and halides, but also can be conveniently transformed to `stable' anionic initiators for `living' anionic graft-from polymerization reactions. Many new functional polyolefin graft co-polymers 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)298-333
Number of pages36
JournalJournal of Elastomers and Plastics
Volume31
Issue number4
DOIs
StatePublished - Jan 1 1999

Fingerprint

Elastomers
Polyolefins
Thermoplastics
Terpolymers
Grafts
Functional polymers
Silanes
Copolymerization
Functional groups
Catalysis
Olefins
Propylene
Styrene
Ethylene
Anhydrides
Molecular weight
Ligands
Polymerization
Alkenes
Polymethyl Methacrylate

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Polyolefins containing reactive p-methylstyrene groups: From high Tm thermoplastics to low Tg elastomers",
abstract = "This paper summarizes the experimental results in a new class of polyolefin co- and terpolymers containing `reactive' p-methylstyrene (p-MS) groups, which includes the materials from high Tm thermoplastics to low Tg elastomers. Due to the extraordinary copolymerization capability of metallocene catalysts with constrained ligand geometry, p-MS can be effectively copolymerized with α-olefins (i.e., ethylene, propylene, 1-octene, etc.) to form co- and terpolymers having narrow molecular weight and composition distributions. Comparing with other relative styrenic comonomers, i.e., styrene, o-methylstyrene and m-methylstyrene, p-MS shows significantly higher reactivity in metallocene catalysis. 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, -COOH, anhydride, silane and halides, but also can be conveniently transformed to `stable' anionic initiators for `living' anionic graft-from polymerization reactions. Many new functional polyolefin graft co-polymers have been prepared, containing polyolefin backbone (PE, EP, EO, etc.) and functional polymer side chains, such as PMMA, PAN, PS, etc.",
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AB - This paper summarizes the experimental results in a new class of polyolefin co- and terpolymers containing `reactive' p-methylstyrene (p-MS) groups, which includes the materials from high Tm thermoplastics to low Tg elastomers. Due to the extraordinary copolymerization capability of metallocene catalysts with constrained ligand geometry, p-MS can be effectively copolymerized with α-olefins (i.e., ethylene, propylene, 1-octene, etc.) to form co- and terpolymers having narrow molecular weight and composition distributions. Comparing with other relative styrenic comonomers, i.e., styrene, o-methylstyrene and m-methylstyrene, p-MS shows significantly higher reactivity in metallocene catalysis. 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, -COOH, anhydride, silane and halides, but also can be conveniently transformed to `stable' anionic initiators for `living' anionic graft-from polymerization reactions. Many new functional polyolefin graft co-polymers have been prepared, containing polyolefin backbone (PE, EP, EO, etc.) and functional polymer side chains, such as PMMA, PAN, PS, etc.

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