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    Chapter

    Interaction of Condensed Tannins with Biopolymers

    Condensed tannins form complexes with a multitude of species, ranging in size from divalent and trivalent metal ions to macromolecules, both naturally occurring and synthetic. Many of these complexes are of lo...

    Luanne F. Tilstra, Wolfgang R. Bergmann in Chemistry and Significance of Condensed Ta… (1989)

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    Article

    Microscopic observations of the ablation behaviours of carbon fibre/phenolic composites

    Donghwan Cho, ** Yong Lee, Byling Il Yoon in Journal of Materials Science Letters (1993)

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    Article

    A microstructural study of the improved ablation resistance of carbon/phenolic composites fabricated using H3PO4-coated carbon fibres

    Donghwan Cho in Journal of Materials Science Letters (1996)

  4. Article

    Microscopic Behavior on the Protection of Polyacrylonitrile-Based Carbon Fibers from Thermal Oxidation

    The surface of polyacrylonitrile-based carbon fiber was appropriately coated with dilute phosphoric acid to protect or retard its thermal oxidation occurring during an exposure to high temperatures above 600°C...

    Donghwan Cho, Byung Il Yoon, Hun Seung Ha, Yun Soo Lim in Polymer Journal (1997)

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    Article

    Fluorescence characterization of LaRC PETI-5, BMI, and LaRC PETI-5/BMI blends

    In the present study, the fluorescence behavior of a phenylethynyl-terminated imide (LaRC PETI-5) resin, a bismaleimide (BMI) resin, and various LaRC PETI-5/BMI blends with different blend compositions has bee...

    Donghwan Cho, Gyeongmo Yang in Fibers and Polymers (2002)

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    Article

    Effects of quasi-carbonization process on the mechanical properties of spun yarn type quasi-carbon fabrics

    In this paper we have extensively studied what and how processing parameters for quasi-carbonization influence the breaking strength and modulus of resulting quasi-carbon fabrics that are prepared from stabili...

    Donghwan Cho, Jongmoon Lee, Jong Kyoo Park in Macromolecular Research (2002)

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    Article

    Effect of thermal cure on the fluorescence of Matrimid™ 5292 bismaleimide resin

    Donghwan Cho, L. T. Drzal in Journal of Materials Science Letters (2003)

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    Article

    Effect of thermal imidization and curing on fluorescence behavior of a phenylethynyl-terminated poly(amic acid)

    The imidization and cure reaction of a thermosetting phenylethynyl-terminated amic acid (LaRC PETI-5) in film form have been monitored as a function of temperature by means of a steady-state fluorescence techn...

    Donghwan Cho, Gyeongmo Yang, Lawrence T. Drzal in Macromolecular Research (2003)

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    Article

    Effect of silane coupling agents with different organo-functional groups on the interfacial shear strength of glass fiber/Nylon 6 composites

    Suk Hyang Yun, Donghwan Cho, Junkyung Kim in Journal of Materials Science Letters (2003)

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    Article

    Influence of silane coupling agents on the interlaminar and thermal properties of woven glass fabric/nylon 6 composites

    In this study, the influence of silane coupling agents, featuring different organo-functional groups on the interlaminar and thermal properties of woven glass fabric-reinforced nylon 6 composites, has been by ...

    Donghwan Cho, Suk Hyang Yun, Junkyung Kim, Soonho Lim, Min Park in Macromolecular Research (2004)

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    Article

    Thermal conductivity and thermal expansion behavior of pseudo-unidirectional and 2-directional quasi-carbon fiber/phenolic composites

    In the present paper, a variety of fiber reinforcements, for instance, stabilized OXI-PAN fibers, quasi-carbon fibers, commercial carbon fibers, and their woven fabric forms, have been utilized to fabricate ps...

    Donghwan Cho, Yusong Choi, Jong Kyoo Park, **yong Lee in Fibers and Polymers (2004)

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    Article

    The effect of cure history on the fluorescence behavior of an unsaturated polyester resin with a fluorescence probe

    Abstract: We have extensively characterized the fluorescence behavior of unsaturated polyester (UP) resin in the absence and presence of a 1,3-bis-(1-pyrenyl)propane (BPP) fluorescent probe at various dynamic ...

    Donghwan Cho, Suk Hyang Yun, Dae-Suk Bang, Il Hyun Park in Macromolecular Research (2004)

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    Article

    Real-time observation of the expansion behavior of intercalated graphite flake

    Sangyeob Lee, Donghwan Cho, L. T. Drzal in Journal of Materials Science (2005)

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    Article

    Effect of applied voltage on the fluorescence behavior of E7/NOA-65 PDLC films

    The present result indicates that the steady-state fluorescence behavior of E7/NOA-65 polymer disperse liquid crystal films prepared by a photoinitiated-polymerization induced phase separation method plays a s...

    Donghwan Cho, Gyeongmo Yang, Sang Cheol Lee, Dae-Suk Bang in Macromolecular Research (2005)

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    Article

    Interfacial shear strength and thermal properties of electron beam-treated henequen fibers reinforced unsaturated polyester composites

    Natural fiber henequen/unsaturated polyester (UPE) composites were fabricated by means of a compression molding technique using chopped henequen fibers treated at various electron beam (EB) dosages. The interf...

    Yansong Pang, Donghwan Cho, Seong Ok Han, Won Ho Park in Macromolecular Research (2005)

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    Article

    Dynamic mechanical properties of natural fiber/polymer biocomposites: The effect of fiber treatment with electron beam

    Environmentally friendly biocomposites were made using plant-based natural fibers, such as henequen and kenaf. The natural fiber reinforced polypropylene (PP) and unsaturated polyester (UP) biocomposites were ...

    Young Hee Han, Seong Ok Han, Donghwan Cho, Hyung-Il Kim in Macromolecular Research (2008)

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    Article

    Effect of natural fiber surface treatments on the interfacial and mechanical properties of henequen/polypropylene biocomposites

    The surfaces of henequen fibers, which can be obtained from the leaves of agave plants, were treated with two different media, tap water and sodium hydroxide, that underwent both soaking and ultrasonic methods...

    Hyun Seok Lee, Donghwan Cho, Seong Ok Han in Macromolecular Research (2008)

  18. No Access

    Article

    Curing behavior of polycardanol by MEKP and cobalt naphthenate using differential scanning calorimetry

    In this study, polycardanol, which was synthesized by enzymatic oxidative polymerization of thermally treated cashew nut shell liquid (CNSL) using fungal peroxidase, was partially or fully cured using methyl e...

    Qun Zhou, Donghwan Cho, Bong Keun Song in Journal of Thermal Analysis and Calorimetry (2010)

  19. No Access

    Article

    Electron beam effect on the tensile properties and topology of jute fibers and the interfacial strength of jute-PLA green composites

    Sang Gyu Ji, Donghwan Cho, Won Ho Park, Byung Cheol Lee in Macromolecular Research (2010)

  20. No Access

    Article

    Fabrication and surface modification of melt-electrospun poly(D,L-lactic-co-glycolic acid) microfibers

    In this study, biodegradable poly(D,L-lactic-co-glycolic acid) (PLGA) fibers were prepared by a melt-electrospinning and treated with plasma in the presence of either oxygen or ammonia gas to modify the surface o...

    Sung ** Kim, Lim Jeong, Seung ** Lee, Donghwan Cho, Won Ho Park in Fibers and Polymers (2013)

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