title: Synthesis of Hydroxy-Functionalized Cyclic Olefin Copolymer and Its Block Copolymers with Semicrystalline Polyolefin Segments.
abstract: Synthesis of hydroxy-functionalized cyclic olefin copolymer (COC) is achieved with remarkably high activity (up to 5.96 × 107g-polymer mol-Ti-1h-1) and controlled hydroxy group in a wide range (≈17.1 mol%) by using ansa-dimethylsilylene (fluorenyl)(amido)titanium complex. The catalyst also promotes living/controlled copolymerization to afford novel diblock copolymers consisting of hydroxy-functionalized COC and semicrystalline polyolefin sequence such as polyethylene and syndiotactic polypropylene, where the glass transition temperature of the norbornene/10-undecen-1-ol segment and each block length are controlled by comonomer composition and copolymerization time, respectively.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials and College of Material Science and Engineering, Donghua University, Shanghai, 201620, China.
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Song
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials and College of Material Science and Engineering, Donghua University, Shanghai, 201620, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Yu
authors.affiliation: Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, 739-8527, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Shiono
authors.affiliation: Department of Chemistry, Rajshahi University, Rajshahi, 6205, Bangladesh.
authors.forename: Tariqul
authors.initials: T
authors.lastname: Hasan
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials and College of Material Science and Engineering, Donghua University, Shanghai, 201620, China.
authors.forename: Zhengguo
authors.initials: Z
authors.lastname: Cai
mesh_terms: D002384:Catalysis; D003516:Cycloparaffins / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D003516:Cycloparaffins; D009942:Organometallic Compounds; D011108:Polymers
keywords: block copolymer; copolymerization; functionalized cyclic olefin copolymer; single-site catalyst