| Autor: |
Hao-Ze Su, Bin Wu, Jianbo Wang, Rong Zhu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Giant, Vol 13, Iss , Pp 100139- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2666-5425 |
| DOI: |
10.1016/j.giant.2023.100139 |
| Popis: |
Controlling the composition and sequence during diazo copolymerization with vinyl or acetylenic monomers is highly desired yet challenging. Here we report a new base-metal-catalysis strategy to address this problem via tandem coupling/polymerization. A selective Cu-catalyzed C(3+1) copolymerization reaction was developed using propargyl carbonates and aryldiazomethanes derived from N-tosylhydrazones as the C3 and C1 building blocks, respectively. This reaction rapidly produces alternating-like poly(1,4-diaryl-2-butyne-1,4-diyl)s (Mn up to 31.0 kg/mol) in a modular fashion, without detectable homopolymer segments. This work provides a new avenue for the synthesis of hydrocarbon polymers through diazo copolymerization. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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