11 Result(s)

Article

Evaluation of hydrogenation properties on MgH_x-transition metal fluoride composites by planetary ball milling

To improve the disadvantages of Mg hydrides, a few studies were conducted for MgH_x intermixed with transition metal fluorides. MgF2 formed from the MgH_x-transition metal fluoride system can be replaces the initia...

Min-Hyuk Jang, So-Hyun Park, Whan-Gi Kim… in Metals and Materials International (2015)

Article

The Sulfonated poly(ether sulfone ketone) ionomers containing partial graphene of mesonaphthobifluorene for PEMFC

Novel sulfonated poly(ether sulfone ketone)s containing mesonaphthobifluorene (MNF) moiety were synthesized and their properties characterized. The prepared polymers had a partial graphene structure due to the...

Young-Don Lim, Dong-Wan Seo, Soon-Ho Lee, Seong-Young Choi… in Electronic Materials Letters (2014)

Article

Anion conductive aromatic ionomers containing a 1,2-dibenzoylbenzene moiety for alkaline fuel cell applications

Novel anion-exchange membranes with high conductivities have been prepared for application to alkaline fuel cells. A quaternary ammonium poly(dibenzoylbenzene ether sulfone) membrane was synthesized by chlorom...

Md. Awlad Hossain, Young-Don Lim, Ho-Hyoun Jang… in Electronic Materials Letters (2013)

Article

Novel cyclotetrasiloxane tetraimidazolium salts as high performance quasi-solid state electrolyte for dye-sensitized solar cells

A new type of quasi-state ionics based on cyclosiloxane imidazolium iodides was synthesized and used as electrolytes in dye-sensitized solar cells (DSSCs). The cyclosiloxane electrolyte formed a distinctive ca...

Soon Ho Lee, Dong Wan Seo, Young Don Lim, Young Tae Jeon… in Macromolecular Research (2013)

Article

Synthesis and properties of polycarbonate-co-poly(siloxane-urethane-siloxane) block copolymers

Polycarbonate-co-poly(siloxane-urethane-siloxane) block copolymers (SiUrPC) were synthesized from siloxane-urethane monomer and polycarbonate (PC) oligomer, and their properties were compared with those of lin...

Dong Wan Seo, Young Do Kwon, Jae Hyoun Kim, Ho Hyoun Jang… in Macromolecular Research (2012)

Article

Synthesis and characterization of polycarbonates containing terminal and chain interior siloxane

Silicone polycarbonates having polydimethyl siloxane (PDMS) and heptamethyl trisiloxane (HMTS) were synthesized by the interfacial polymerization. Instead of common chain terminator p-tert-butyl phenol (PTBP), eu...

M. S. Islam Mollah, Young-Do Kwon, Md. Monirul Islam, Dong-Wan Seo… in Polymer Bulletin (2012)

Article

Synthesis and characterization of branched bisphenol-A polycarbonates functionalized with siloxane

Branched and grafted silicone polycarbonates were synthesized from branched allyl polycarbonate (Br-Allyl-PC) precursors and siloxanes by a controlled hydrosilylation reaction using Karstedt’s catalyst. The Br...

Md. Monirul Islam, Dong-Wan Seo, Ho-Hyoun Jang, Young-Don Lim… in Macromolecular Research (2011)

Article

Preparation and characteristics of silicone grafted poly(ethersulfone)s

Dong-Wan Seo, Deok-Gu Kim, Young-Don Lim, Soon-Ho Lee… in Macromolecular Research (2011)

Article

Preparation and characterization of imide-grafted poly(ethersulfone)s

Poly(ethersulfone)s carrying pendant imide side group with a low dielectric constant were prepared. The first step in the preparation involved the nitration of poly(ethersulfone) (ultrason®-S6010), with ammoni...

Dong Wan Seo, Young Don Lim, Soon Ho Lee, Hyun Mi **… in Macromolecular Research (2011)

Article

Synthesis and photopolymerization of vinyl ether and epoxy-functionalized silicones

The reactive precursors, vinyl ethers, and epoxy-silicones, were synthesized. The vinyl ether monomers were prepared from primary alcohol and ethyl vinyl ether with mercury (II) acetate. The epoxy-functionaliz...

Sang Yong Pyun, Whan Gi Kim in Macromolecular Research (2003)