Skip to main content

7 Result(s)

within Joo Hwan Koh Remove this filter

and

  1. No Access

    Article

    Preparation of nanoporous films from self-assembled poly(vinyl chloride-g-methyl methacrylate) graft copolymer

    We report on the preparation of nanoporous films based on an amphiphilic graft copolymer of poly(vinyl chloride-graft-methyl methacrylate), i.e., PVC-g-PMMA. The PVC-g-PMMA graft copolymer was synthesized via ato...

    Joo Hwan Koh, Su ** Byun, Won Seok Chi… in Korean Journal of Chemical Engineering (2012)

  2. No Access

    Article

    Proton-conducting composite membranes from graft copolymer electrolytes and phosphotungstic acid for fuel cells

    New organic–inorganic composite membranes based on poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(styrene sulfonic acid) [P(VDF-co-CTFE)-g-PSSA] with embedded phosphotungstic acid (PWA) were prep...

    Dong Kyu Roh, Jung Tae Park, Joo Hwan Koh, Jong Kwan Koh, Jong Hak Kim in Ionics (2009)

  3. No Access

    Article

    Templated formation of silver nanoparticles using amphiphilic poly(epichlorohydrine-g-styrene) film

    This work has demonstrated that a novel amphiphilic poly(epichlorohydrine)-graft-polystyrene (PECH-g-PS) copolymer at 34:66 wt% was synthesized via atom transfer radical polymerization (ATRP) of styrene using PEC...

    Jung Tae Park, Joo Hwan Koh, ** Ah Seo, Dong Kyu Roh… in Macromolecular Research (2009)

  4. No Access

    Article

    Graft polymerization of poly(epichlorohydrin-g-poly((oxyethylene) methacrylate)) using ATRP and its polymer electrolyte with KI

    This contribution demonstrates a synthesis of comb polymer consisting of a poly(epichlorohydrin) (PECH) backbone and poly(oxyethylene methacrylate) side chains. Atom transfer radical polymerization (ATRP) was ...

    Kyung Ju Lee, Jung Tae Park, Joo Hwan Koh, Byoung Ryul Min, Jong Hak Kim in Ionics (2009)

  5. No Access

    Article

    Correction

    ** Kyu Choi, Yong Woo Kim, Joo Hwan Koh, Jong Hak Kim… in Macromolecular Research (2008)

  6. No Access

    Article

    PEO electrolytes containing dioctyl phthalate (DOP) for dye-sensitized nanocrystalline TiO2 solar cells

    In this paper, we aim to prepare polymer electrolytes consisting of NaI and I2 dissolved in poly(ethylene oxide) (PEO) and dioctyl phthalate (DOP) as an additive and apply the electrolytes to dye-sensitized solar...

    So Yeon Bang, Kyung Ju Lee, Joo Hwan Koh, Moon-Sung Kang, Yong Soo Kang… in Ionics (2008)

  7. No Access

    Article

    Synthesis and characterization of nanocomposite films consisting of vanadium oxide and microphase-separated graft copolymer

    Nanocomposite films were prepared by sol-gel synthesis from vanadium triisopropoxide with poly((oxyethylene)9 methacrylate)-graft-poly(dimethyl siloxane), POEM-g-PDMS, producing in situ growth of vanadium oxide w...

    ** Kyu Choi, Yong Woo Kim, Joo Hwan Koh, Jong Hak Kim… in Macromolecular Research (2007)