Synthesis of Hydroxy‐Functionalized Polyethylene via Radical Copolymerization of Ethylene with Alkenyl Boronate and Post‐Polymerization Oxidation
Abstract
Abstract Radical copolymerization of ethylene was performed with alkenyl boronate, and post‐polymerization oxidation was conducted to synthesize hydroxy‐functionalized polyethylene (PE). The copolymerization behavior was dependent on the molecular structure of the boron monomer: the copolymerization with α‐methyl substituted monomer carrying boronic acid pinacol ester [isopropenylboronic acid pinacol ester (IPBpin)] afforded copolymers with higher molar masses than the vinyl‐type monomer [i.e., vinylboronic acid pinacol ester (VBpin)]. The content of the boron‐pendant units was up to 7 mol%, and kinetic studies suggested the incorporation of boron‐pendant units in a discrete manner. The post‐polymerization oxidation of the boron pendants on the copolymer proceeded quantitatively, affording a hydroxy‐containing polyethylene. The introduction of a hydroxy group had a significant impact on the crystallization behaviors.
Article Details
Authors (7)
Tomoaki Kanazawa
Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Kyoto‐Daigaku Katsura, Nishikyo‐ku Kyoto 615‐8510 Japan
Tommaso Posenato
Universite Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
Sébastien Norsic
Universite Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
Tsuyoshi Nishikawa
Department of Polymer Chemistry, Graduate School of Engineering
Makoto Ouchi
Department of Polymer Chemistry, Graduate School of Engineering
Jean Raynaud
Universite Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
Franck D'Agosto
Universite Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France