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  1. No Access

    Article

    Fabrication of High-Performance PP/Graphene Nanocomposites via Friedel–Crafts

    In the past few years, graphene-based nanocomposites are a hot topic in the fields of materials and chemistry owing to their unique features. We describe a facile melt blending method for preparing polypropyle...

    He-xin Zhang, **n Yan, Wei Han, Chen Liu in Journal of Inorganic and Organometallic Po… (2023)

  2. No Access

    Article

    Polyamide 6/MXene-grafted graphene oxide hybrid nanocomposites

    Polymer nanocomposites offer a way to bridge the gap between nanomaterials and macroscale materials. Nanocomposites based on MXene (2D transition metal carbide, nitride, or carbonitride) and graphene are a hot...

    Dong-Eun Lee, Gwan Hui Lee, Na Rae Son, He-**n Zhang in Iranian Polymer Journal (2023)

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    Article

    Fabrication of PA6/MoS2 nanocomposites via melt blending of PA6 with PA6/PEG modified-MoS2 masterbatch

    Modified MoS2 (mMoS2) was prepared by reacting MoS2 with alkyl lithium and amine-terminated long-chain polyethylene glycol (APEG) derivatives via a one-pot modification process. The APEG on the surface of MoS2 gr...

    He-**n Zhang, Joon-Young Park, Dong-Eun Lee, Keun-Byoung Yoon in Polymer Bulletin (2022)

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    Article

    Co-dispersion and co-deposition of clay/MoS2 and its application on epoxy nanocomposites

    In recent years, polymer nanocomposites based on 2D materials have aroused widespread research interest. MoS2 exhibits many excellent properties due to its unique structure, such as mechanical properties, thermal...

    Han-Lin **e, Wei Han, **n Yan, Bao-Jian Ni, Bin Chen in Iranian Polymer Journal (2021)

  5. No Access

    Article

    Fabrication of highly thermal conductive PA6/hBN composites via in-situ polymerization process

    In this research, thermally conductive polyamide 6/hexagonal boron nitride (PA6/hBN) nanocomposites waaere fabricated via an in-situ ring-opening polymerization of ε-caprolactam. The hBN filler was exfoliated thr...

    He-xin Zhang, Do Hyun Seo, Dong-Eun Lee, Keun-Byoung Yoon in Journal of Polymer Research (2021)

  6. No Access

    Article

    Effect of Molybdenum Disulfide Exfoliation Conditions on the Mechanical Properties of Epoxy Nanocomposites

    In this work, the MoS2 fillers were prepared through chemical exfoliation method and used as fillers to fabricate epoxy (EP)/MoS2 nanocomposites. The effects of molybdenum disulfide (MoS2) intercalation condition...

    Bin Chen, Bao-Jia Ni, Meng-**ang Fu, Hang Zhong in Chinese Journal of Polymer Science (2019)

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    Article

    Isothermal-crystallization kinetics and spherulite growth of aliphatic polyketone/polyamide-6 blends

    In this research, the morphologies, isothermal-crystallization kinetics, and spherulite growth of aliphatic polyketone/polyamide-6 blends were studied. A single glass-transition temperature (T ...

    He-xin Zhang, Seong-Rok Huh, Eun-Bin Ko in Chinese Journal of Polymer Science (2017)

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    Article

    An efficient organic additive to control the crystallization rate of aliphatic polyketone: A non-isothermal crystallization kinetics study

    Three types of organic compounds—two carboxylic acids and an anhydride, were used as additives for polyketone (PK). The effect of the additive structure and their feed ratios on the melting temperature, crysta...

    He-xin Zhang, Min-Jeong Park, Young-Kwon Moon in Chinese Journal of Polymer Science (2017)

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    Article

    Luminous polyimide bearing the coumarin 6 chromophore in the side group: Synthesis and fluorescence image patterning

    Coumarin was reacted with polyamic acid to form a luminous polyimide that is highly soluble in organic solvents and displays good thermal stability. Luminous side-chain coumarin 6 polyimide was obtained from i...

    Byung-Sik Park, Woo Yeon Kim, Keun-Byoung Yoon in Korean Journal of Chemical Engineering (2014)

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    Article

    Preparation of ultra high molecular weight polyethylene with MgCl2/TiCl4 catalyst: Effect of hydrogen and cocatalyst on molecular weight and molecular weight distribution

    He-xin Zhang, Young-jun Shin, Dong-ho Lee, Keun-Byoung Yoon in Macromolecular Research (2012)

  11. No Access

    Article

    Control of molecular weight distribution for polypropylene obtained by commercial Ziegler–Natta catalyst: effect of temperature

    Polymerization of propylene was carried out by using MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium (TEA) as cocatalyst. The effect of polymerization temperature on polymerization of propyle...

    He-xin Zhang, Young-joo Lee, Joon-ryeo Park, Dong-ho Lee in Polymer Bulletin (2011)

  12. No Access

    Article

    Control of molecular weight distribution for polypropylene obtained by commercial ziegler-natta catalyst: Effect of electron donor

    Polymerization of propylene was carried out using a MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium (TEA) as the cocatalyst and various types of alkoxy silane compounds as an external donor. ...

    He-**n Zhang, Young-Joo Lee, Joon-Ryeo Park, Dong-Ho Lee in Macromolecular Research (2011)

  13. No Access

    Article

    Poly(lactic acid) blends with desired end-use properties by addition of thermoplastic polyester elastomer and MDI

    The disadvantages of the poor mechanical properties of polylactic acid (PLA) limit its ability to be used in a wide number of applications. Melt blending of PLA and thermoplastic polyester elastomer (TPEE) has...

    Haydar U. Zaman, Jun Cheol Song, Lee-Soon Park, Inn-Kyu Kang in Polymer Bulletin (2011)

  14. No Access

    Article

    Enhancement of physical properties of thermoplastic polyether-ester elastomer by reactive extrusion with chain extender

    The branched thermoplastic polyether-ester elastomer (TPEE) and diisocyanate compound was melt extruded in an effort to enhance melt viscosity for the blow moulding process. The chain-extended TPEE was prepare...

    Tae-young Lee, Chol-han Lee, Sunghwan Cho, Dong-ho Lee in Polymer Bulletin (2011)

  15. No Access

    Article

    Preparation of ultra high molecular weight polyethylene with MgCl2/TiCl4 catalyst: effect of internal and external donor on molecular weight and molecular weight distribution

    Ultra high molecular weight polyethylene (UHMWPE) was prepared by using MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium (TEA) cocatalyst. The effects of internal and external donor on polydis...

    He-xin Zhang, Young-jun Shin, Dong-ho Lee, Keun-Byoung Yoon in Polymer Bulletin (2011)

  16. No Access

    Article

    Preparation of ultra high molecular weight polyethylene with MgCl2/TiCl4 catalysts: Effect of temperature and pressure

    The polymerization of ethylene (E) was carried out using a MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium as a cocatalyst. The effects of the polymerization temperature (T ...

    Young-jun Shin, He-xin Zhang, Keun-Byoung Yoon, Dong-ho Lee in Macromolecular Research (2010)

  17. No Access

    Article

    Controlled wall thickness and porosity of polymeric hollow nanofibers by coaxial electrospinning

    Highly porous polymeric hollow nanofibers were developed using a method based on coaxial electrospinning with inner silicon oil and outer polymer solutions. This method was verified by the fabrication of polym...

    Ga Hyoung Lee, Jun-Cheol Song, Keun-Byoung Yoon in Macromolecular Research (2010)

  18. Article

    Polymer Nanocomposite of Mg-Al Hydrotalcite-Type Anionic Clay Modified with Organosulfate

    The Mg-Al hydrotalcite (HT) was modified with organosulfate, sodium dodecylsulfate (SDS) by an anion exchange reaction. The modifier content and the interlayer distance of organo-modified HT (MHT) were examine...

    Keun-Byoung Yoon, Young-Young Hwang, Seak Kyun Noh, Dong-Ho Lee in Polymer Journal (2008)

  19. Article

    Electrical Properties of Non-Crosslinked Polyethylene/Syndiotactic Polystyrene Composites Filled with Carbon Black

    Carbon black (CB)-filled high density polyethylene (HDPE)/syndiotactic polystyrene (sPS) composites were prepared by the conventional melt-mixing procedure. The effect of the HDPE/sPS weight ratio, CB content ...

    Keun-Byoung Yoon, Ga Hyoung Lee, Woo Young Choi, Dong-ho Lee in Polymer Journal (2007)

  20. No Access

    Article

    Copolymerization of ethylene and 1-hexene using (n-BuCp)2ZrCl2 catalyst activated by the cross-linked MAO supported cocatalyst

    Keun-Byoung Yoon, Dong-Ho Lee, Seok Kyun Noh in Macromolecular Research (2006)

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