title: Facile synthesis of thiol-functionalized long-chain highly branched ROMP polymers and surface-decorated with gold nanoparticles.
abstract: The synthesis of thiol-functionalized long-chain highly branched polymers (LCHBPs) has been accomplished in combination of ring-opening metathesis polymerization (ROMP) and thiol-Michael addition click reaction. A monotelechelic polymer with a terminal acrylate and many pendent thiol groups is first prepared through adding an internal cis-olefin terminating agent to the reaction mixture immediately after the completion of the living ROMP, and then utilized as an ABn -type macromonomer in subsequent thiol-ene reaction between acrylate and thiol, yielding LCHBPs as the reaction time prolonged. Au nanoparticles are then covalently conjugated onto the surface of thiol-functionalized LCHBP to fabricate novel hybrid nanostructures, which is shown as one interesting application of such functionalized metathesis polymers. This facile approach can be extended toward the fabrication of novel nanomaterials with sophisticated structures and tunable multifunctionalities.
authors.affiliation: School of Materials Engineering, Yancheng Institute of Technology, Yancheng, 224051, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Ding
authors.forename: Jun
authors.initials: J
authors.lastname: Qiu
authors.forename: Zhenshu
authors.initials: Z
authors.lastname: Zhu
mesh_terms: D000179:Acrylates / Q000737:chemistry; D000475:Alkenes / Q000737:chemistry; D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D009636:Norbornanes / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D000179:Acrylates; D000475:Alkenes; D009636:Norbornanes; D011108:Polymers; D013438:Sulfhydryl Compounds; D006046:Gold; C036658:acrylic acid
keywords: ABn-type macromonomer; hybrid nanostructure; long-chain highly branched polymer; ring-opening metathesis polymerization; thiol-Michael addition click reaction