Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex
Polyisocyanide has attracted continuous attention because of its stable helical rod structure and its wide application, it has a unique π-conjugated system in which the carbon-nitrogen double bond in each unit is twisted along the polymeric backbone to form a helical configuration. In this paper, a...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_02018.pdf |
| _version_ | 1797756259243393024 |
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| author | Liu Jia Liu Yi Zhang Shaowen |
| author_facet | Liu Jia Liu Yi Zhang Shaowen |
| author_sort | Liu Jia |
| collection | DOAJ |
| description | Polyisocyanide has attracted continuous attention because of its stable helical rod structure and its wide application, it has a unique π-conjugated system in which the carbon-nitrogen double bond in each unit is twisted along the polymeric backbone to form a helical configuration. In this paper, a series of aryl isocyanides polymers are prepared using N-heterocyclic carbene-ligated scandium trialkyl complex 1 (IPr)Sc(CH2SiMe3)3 as the catalyst and 2 equiv. [Ph3C][B(C6F5)4] as the co-catalyst. The catalyst can convert 96% of 100 equiv. monomer in 5 minutes and the activity of the polymerization can reach 329 kg of polymer molSc-1 h-1. Two optically active polymers are obtained by using chiral monomers, they show strong CD signal at 364 nm and the two signals are opposite. |
| first_indexed | 2024-03-12T17:57:53Z |
| format | Article |
| id | doaj.art-d4f629e637bf4a05b0e3dc0baab13275 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T17:57:53Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-d4f629e637bf4a05b0e3dc0baab132752023-08-02T13:18:50ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014060201810.1051/e3sconf/202340602018e3sconf_icemee2023_02018Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl ComplexLiu Jia0Liu Yi1Zhang Shaowen2School of Chemistry and Chemical Engineering, Beijing Institute of TechnologySchool of Chemistry and Chemical Engineering, Beijing Institute of TechnologySchool of Chemistry and Chemical Engineering, Beijing Institute of TechnologyPolyisocyanide has attracted continuous attention because of its stable helical rod structure and its wide application, it has a unique π-conjugated system in which the carbon-nitrogen double bond in each unit is twisted along the polymeric backbone to form a helical configuration. In this paper, a series of aryl isocyanides polymers are prepared using N-heterocyclic carbene-ligated scandium trialkyl complex 1 (IPr)Sc(CH2SiMe3)3 as the catalyst and 2 equiv. [Ph3C][B(C6F5)4] as the co-catalyst. The catalyst can convert 96% of 100 equiv. monomer in 5 minutes and the activity of the polymerization can reach 329 kg of polymer molSc-1 h-1. Two optically active polymers are obtained by using chiral monomers, they show strong CD signal at 364 nm and the two signals are opposite.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_02018.pdf |
| spellingShingle | Liu Jia Liu Yi Zhang Shaowen Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex E3S Web of Conferences |
| title | Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex |
| title_full | Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex |
| title_fullStr | Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex |
| title_full_unstemmed | Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex |
| title_short | Polymerization of Aryl Polyisocyanides Catalyzed by N-Heterocyclic Carbene-Ligated Scandium Trialkyl Complex |
| title_sort | polymerization of aryl polyisocyanides catalyzed by n heterocyclic carbene ligated scandium trialkyl complex |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_02018.pdf |
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