Seung Sang Hwang

ORCID: 0000-0003-2819-8410
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Research Areas
  • Synthesis and properties of polymers
  • Silicone and Siloxane Chemistry
  • Polymer Nanocomposites and Properties
  • Polymer crystallization and properties
  • Advanced Battery Materials and Technologies
  • Liquid Crystal Research Advancements
  • Advanced Sensor and Energy Harvesting Materials
  • Dielectric materials and actuators
  • biodegradable polymer synthesis and properties
  • Advancements in Battery Materials
  • Fuel Cells and Related Materials
  • Conducting polymers and applications
  • Membrane Separation and Gas Transport
  • Synthetic Organic Chemistry Methods
  • Semiconductor materials and devices
  • Supercapacitor Materials and Fabrication
  • Advanced Battery Technologies Research
  • Advanced ceramic materials synthesis
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Copper Interconnects and Reliability
  • Advanced Polymer Synthesis and Characterization
  • Epoxy Resin Curing Processes
  • Polymer composites and self-healing
  • Membrane Separation Technologies

Korea Institute of Science and Technology
2016-2025

Korea University
2025

Korea Institute of Science & Technology Information
2023

Korea University of Science and Technology
2012-2020

Seoul Institute
2016

Government of the Republic of Korea
2014-2015

University of Science and Technology
2014

Seoul Medical Center
2014

Incheon National University
2002-2008

Korea Advanced Institute of Science and Technology
2000

This study presents the design, characterization, and application of a novel multifunctional membrane specifically developed for an electrochemical system similar to electrodialysis, with objective removing low-concentration copper ions from semiconductor wastewater. The membranes were fabricated using pore-filling method, where porous polytetrafluoroethylene (PTFE) substrates impregnated monomer blend solutions containing vinyl phosphonic acid (VPA) crosslinking agents, such as...

10.1016/j.jclepro.2024.140779 article EN cc-by-nc Journal of Cleaner Production 2024-01-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTZigzag Morphology of a Poly(styrene-b-hexyl isocyanate) Rod-Coil Block CopolymerJ. T. Chen, E. L. Thomas, C. K. Ober, and S. HwangCite this: Macromolecules 1995, 28, 5, 1688–1697Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February 1995https://doi.org/10.1021/ma00109a048RIGHTS & PERMISSIONSArticle Views1049Altmetric-Citations188LEARN ABOUT THESE METRICSArticle Views are the...

10.1021/ma00109a048 article EN Macromolecules 1995-02-01

Through fine-tuning of the myriad reaction conditions for an aqueous base-catalyzed hydrolysis–polycondensation reaction, a facile synthesis structurally controlled polyphenylsilsesquioxanes was developed. Mechanism and kinetic studies indicated that condensation proceeded through T1 structured dimer, which quantitatively in situ formed mild hydrolysis phenyltrimethoxysilane (PTMS) monomer, to give either cage-structured polyhedral oligomeric silsesquioxanes (POSS) or corresponding...

10.1021/acs.macromol.5b01539 article EN Macromolecules 2015-08-25

Multiple conductive fillers (MWCNT, GNP, [email protected] dendrite, EGain) were incorporated in a commercial polypropylene matrix through melt processing. Electrical conductivity, thermal and EMI shielding properties of the fabricated composites examined according to various filler compositions, it was confirmed that varied shape, composition, mutual compatibility particulate fillers. In particular, at broadband frequencies (X-, Ka-, W- band), reached 32.6 dB (at 10 GHz), 39.3 28 51.1 77...

10.1016/j.cej.2022.140528 article EN cc-by Chemical Engineering Journal 2022-11-25

The role of 2D transition metal carbides, also known as MXenes, active catalyst supports in Co-based oxygen evolution reaction (OER) catalysts was elucidated through a combination experimental and computation electrochemistry. Through facile seeding commericial Co nanoparticles on three different MXene (Ti3C2Tx, Mo2Ti2C3Tx, Mo2CTx), Co@MXene were prepared their electrochemical properties examined for alkaline OER electrocatalysts. activity enhancement significantly improved Mo2CTx Mo2Ti2C3Tx...

10.1016/j.apcatb.2024.123731 article EN cc-by-nc Applied Catalysis B Environment and Energy 2024-01-13

Abstract Various ladder‐like structured poly(phenyl‐ co ‐methacryl silsesquioxane)s (LPMSQ)s with high molecular weight ( M w = 10,000 ∼ 40,000) were synthesized by direct hydrolysis and polymerization in the presence of base catalyst at 25 °C. Synthesized LPMSQs mainly showed structure photo‐cure reaction 100 mW/cm 2 (360 nm) for 10 s without any initiators. Chemical composition structural analysis obtained characterized using 1 H NMR, 29 Si Fourier transform infrared spectroscopy (FTIR),...

10.1002/pola.24942 article EN Journal of Polymer Science Part A Polymer Chemistry 2011-09-12

Hybrid ionogels fabricated using 1 M LiTFSI in <italic>N</italic>-butyl-<italic>N</italic>-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) crosslinked with ladder-like structured poly(methacryloxypropyl)silsesquioxane (LPMASQ) were investigated as high temperature ionogel electrolytes for lithium ion batteries.

10.1039/c4ta06062h article EN Journal of Materials Chemistry A 2014-12-02

For the first time, an inorganic-organic hybrid polymer binder was used for coating of composites on separators to enhance thermal stability and prevent formation lithium dendrite in metal batteries. The fabricated hybrid-composite-coated exhibited minimal shrinkage compared with previous composite (<5% change dimension), maintenance porosity (Gurley number ∼400 s/100 cm(3)), high ionic conductivity (0.82 mS/cm). Lithium battery cell examinations our revealed excellent C-rate cyclability...

10.1021/acsami.6b02735 article EN ACS Applied Materials & Interfaces 2016-05-05

A novel inorganic–organic hybrid crosslinker was prepared through synthesis of a fully condensed, high molecular weight ladder-like poly(methacryloxypropyl)silsesquioxane (LPMASQ) in one pot with facile, base-catalysed system. The condensed LPMASQ revealed good thermal (∼380 °C) and electrochemical stability (∼5.0 V) due to the absence uncondensed silanol groups. also solubility various organic solvents gelated 1 M LiPF6 ethyl carbonate–diethyl carbonate (EC–DEC, 3/7, v/v) electrolyte...

10.1039/c3ta14290f article EN Journal of Materials Chemistry A 2013-11-12

Abstract Electrostriction facilitates the electric field‐stimulated mechanical actuation of dielectric materials. This work demonstrates that introduction mismatched nanodomains to a elastomer results in an unexpected ultralarge electrostriction coefficient, enabling large electromechanical strain response at low field. strong electrostrictive effect is attributed development inhomogeneous field across film thickness due high density interfaces between periodic nanoscale domains. The...

10.1002/adfm.201100298 article EN Advanced Functional Materials 2011-07-11

Anion exchange membranes prepared through cyclopolymerization of crosslinking diallylammonium precursors were subjected to various physical, mechanical, and chemical stability property analysis for anion membrane water electrolyzers.

10.1039/d3ta01511d article EN Journal of Materials Chemistry A 2023-01-01

Ladder-like structured polysilsesquioxane with carbazole groups showed unexpected high photo- and electroluminescence efficiencies both in solution solid states due to its rigid silicone ladder structures, which efficiently isolated the thus suppressed their excimer formations by inter- intramolecules.

10.1039/c0jm02561e article EN Journal of Materials Chemistry 2010-01-01

A series of cationically photopolymerizable inorganic–organic hybrid epoxy-functionalized thermoplastic polysilsesquioxanes were synthesized and their thermal, mechanical, optical, barrier properties investigated.

10.1039/c4ra08289c article EN RSC Advances 2014-01-01
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