A simple route to vinyl-functionalized hyperbranched polymers: Self-condensing anionic copolymerization of allyl methacrylate and hydroxyethyl methacrylate. (18th August 2015)

• Record Type: Journal Article
• Authors: Yang, Hongjun; Bai, Tao; Xue, Xiaoqiang; Huang, Wenyan; Chen, Jianhai; Qian, Xiaolei; Zhang, Guangzhao; Jiang, Bibiao
• Is Part Of: Polymer. Volume 72(2015)
• Page Start: 63
• Page End: 68
• Publication Date: 2015-08-18
• Subjects: Hyperbranched polymer -- Anionic copolymerization -- Self-condensing vinyl polymerization; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2015.06.048
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: Vinyl-functionalized hyperbranched polymers (HBPs) have attracted much attraction because their pendant vinyl groups can be further modified for a required application. However, the syntheses of these polymers are difficult, because the cross-linking is inevitable during the polymerization reaction. The present work reports a new, facile, one-step strategy for the synthesis of vinyl-functionalized HBPs v ia the self-condensing anionic copolymerization of commercially available allyl methacrylate and hydroxyethyl methacrylate with a monomer conversion approaching 100% at room temperature. The hyperbranched structures were confirmed by triple-detection size exclusion chromatography. The pendent vinyl groups of the resulting polymer were successfully modified by a "thiol-ene" reaction. This method provides a facile approach for preparing vinyl-functionalized HBPs with excellent monomer conversions under mild conditions, and will be useful in materials chemistry. Graphical abstract: Highlights: Commercially available monomers were employed to synthesize vinyl-functionalized HBPs. The monomer conversion was as high as 100% without crosslinking. The polymerization could proceed under mild conditions.