Precise control of coordination polymerization via the modification of methylaluminoxane (MAO)
Methylaluminoxane (MAO) is known as a versatile activator of transition metal catalysts for coordination polymerization reactions, even though its precise structure and the origin of its activation properties have not been fully investigated. Considering that MAO exists as a counter anion that can i...
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| Vydáno v: | Polymer journal Ročník 52; číslo 7; s. 661 - 670 |
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| Hlavní autor: | |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Tokyo
Nature Publishing Group
01.07.2020
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| Témata: | |
| ISSN: | 0032-3896, 1349-0540 |
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| Abstract | Methylaluminoxane (MAO) is known as a versatile activator of transition metal catalysts for coordination polymerization reactions, even though its precise structure and the origin of its activation properties have not been fully investigated. Considering that MAO exists as a counter anion that can interact with cationic metal species in a polymerization medium, the ability to impart structural modifications to MAO would provide a new direction for controlling the polymerization behavior. Here, the modification, the composition control, and a new preparation method of MAO will be summarized, as well as the application of modified MAO for the synthesis of stereoblock polydienes.Methylaluminoxane (MAO) activates various transition metal catalysts for coordination polymerization reactions and exists as a counter anion that can interact with cationic metal species in a polymerization medium. The structural modifications to MAO would therefore provide a new direction for controlling the polymerization behavior. In this review, our recent work about the modification, the composition control, and a new preparation method of MAO is summarized. The application of modified MAO for the synthesis of stereoblock polydienes is also described. |
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| AbstractList | Methylaluminoxane (MAO) is known as a versatile activator of transition metal catalysts for coordination polymerization reactions, even though its precise structure and the origin of its activation properties have not been fully investigated. Considering that MAO exists as a counter anion that can interact with cationic metal species in a polymerization medium, the ability to impart structural modifications to MAO would provide a new direction for controlling the polymerization behavior. Here, the modification, the composition control, and a new preparation method of MAO will be summarized, as well as the application of modified MAO for the synthesis of stereoblock polydienes.Methylaluminoxane (MAO) activates various transition metal catalysts for coordination polymerization reactions and exists as a counter anion that can interact with cationic metal species in a polymerization medium. The structural modifications to MAO would therefore provide a new direction for controlling the polymerization behavior. In this review, our recent work about the modification, the composition control, and a new preparation method of MAO is summarized. The application of modified MAO for the synthesis of stereoblock polydienes is also described. |
| Author | Tanaka, Ryo |
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| CitedBy_id | crossref_primary_10_1038_s41428_021_00507_w crossref_primary_10_1134_S1560090422700555 crossref_primary_10_1039_D4QI01874E crossref_primary_10_1021_acs_iecr_5c01770 crossref_primary_10_1016_j_jorganchem_2024_123310 crossref_primary_10_1002_chem_202404642 crossref_primary_10_1002_slct_202303611 crossref_primary_10_1002_cphc_202100268 crossref_primary_10_1039_D3SC03827K crossref_primary_10_1039_D5PY00765H crossref_primary_10_3390_polym15061378 |
| ContentType | Journal Article |
| Copyright | The Society of Polymer Science, Japan 2020. |
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| DOI | 10.1038/s41428-020-0325-x |
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| SubjectTerms | Anions Catalysts Cations Composition Coordination Polymerization Transition metals |
| Title | Precise control of coordination polymerization via the modification of methylaluminoxane (MAO) |
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