Synthesis of ethylene copolymers with 2-allylphenol by using half-titanocene catalysts containing SiEt3-, SiiPr3-substituted phenoxide ligands, Cp*TiCl2(O-2,6-iPr2-4-SiR3-C6H2) (R = Et, iPr)Electronic supplementary information (ESI) available: Additional copolymerisation results, selected DSC thermograms and NMR spectra in the copolymers. See DOI: https://doi.org/10.1039/d4cy00578c

Autor:	Jiang, Youshu, Shimoyama, Daisuke, Gao, Jiahao, Nomura, Kotohiro
Zdroj:	Catalysis Science & Technology; 2024, Vol. 14 Issue: 13 p3800-3806, 7p
Abstrakt:	Ethylene copolymerisation with 2-allylphenol (AP, pretreated with AliBu3) catalysed by Cp*TiCl2(O-2,6-iPr2-4-R-C6H2) (R = SiEt3, SiiPr3) gave rather high molecular weight copolymers containing a phenolic moiety (Mn= 9300–32 500 g mol−1, AP up to 11.7 mol%) with uniform compositions (observed as a sole melting temperature from the DSC thermogram). The catalysts containing trialkylsilyl substituted phenoxide ligands were effective in the copolymerisation; pretreatment of AP with AliBu3and 2,6-tBu2C6H3OH was effective for obtaining the copolymers with high catalytic activity and efficient AP incorporation.
Databáze:	Supplemental Index
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