title: Synthesis of Well-defined Amphiphilic Block Copolymers by Organotellurium-Mediated Living Radical Polymerization (TERP).
abstract: Low-molecular weight amphiphilic diblock copolymers, polystyrene-block-poly (2-vinylpyridine) (PS-b-P2VP), and (P2VP-b-PS) with different block ratios were synthesized for the first time via organotellurium-mediated living radical polymerization (TERP). For both the homo- and block copolymerizations, good agreement between the theoretical, and experimental molecular weights was found with nearly 100% yield in every case. The molecular weight distribution for all the samples ranged between 1.10 and 1.24, which is well below the theoretical lower limit of 1.50 for a conventional free radical polymerization. Furthermore, a very simple approach to producing highly dense arrays of titania nanoparticles (TiO2 ) is presented using a site-selective reaction of titanium tetraisopropoxide within the P2VP domains of micellar film of P2VP-b-PS in toluene through the sol-gel method.
authors.affiliation: Department of Nanobio Materials and Electronics and School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-gu, Gwangju, 500-712, Korea.|Applied Chemistry Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, Gujarat, 390-001, India.
authors.forename: Santosh
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Department of Nanobio Materials and Electronics and School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-gu, Gwangju, 500-712, Korea.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Changez
authors.affiliation: Applied Chemistry Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, Gujarat, 390-001, India.
authors.forename: C N
authors.initials: CN
authors.lastname: Murthy
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
authors.forename: Shigeru
authors.initials: S
authors.lastname: Yamago
authors.affiliation: Department of Nanobio Materials and Electronics and School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-gu, Gwangju, 500-712, Korea. jslee@gist.ac.kr.
authors.forename: Jae-Suk
authors.initials: JS
authors.lastname: Lee
mesh_terms: D005609:Free Radicals / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*; D014050:Toluene / Q000737:chemistry
chemical_list: D005609:Free Radicals; D009942:Organometallic Compounds; D011137:Polystyrenes; D011145:Polyvinyls; D011725:Pyridines; C569267:polystyrene-block-poly(2-vinylpyridine); D014050:Toluene; D013691:Tellurium