Materials Science Engineer

JIMMY LONGUN

**** **** **. *** #*, Cincinnati, OH 45220 651-***-****; ***********@*****.***

SUMMARY

• Over 3 years of hands-on research experience in materials characterization, polymer synthesis, paints, materials failure and processing kinetics, surface science and engineering, electrochemistry, battery and capacitor testing, corrosion science, polymer/inorganic nanocomposite coatings/ thin films, thermal processing, electrical/optical testing,UV-durability testing, product development, structure-to-property correlation, rheological studies, macro and microstructural analysis, thermal-mechanical, dynamic mechanical analysis, XRD, TGA, DSC, DMA, EIS, FT-IR, UV-Vis, Instron, AFM and SEM

• Knowledgeable in materials processing techniques such as spin-coating, solution casting, hot-pressing, laminating, blending and electrodeposition

• Experienced in the formulation of smart, highly transparent and conductive polymeric-nanocomposite thin films such as graphene/polyimide composite films for sensing, polymer electrolyte membrane fuel cell(PEMFC), battery and supercapacitor applications

EDUCATION

Doctor of Philosophy, Materials Science & Engineering, June, 2012

University of Cincinnati, Cincinnati, OH

Thesis topic: Development of multifunctional polyimide nanocomposite membranes and thin films

Master of Engineering, Materials Science & Engineering, June 2009

University of Cincinnati, Cincinnati, OH

Research Project: Modified epoxy/nano-clay coatings/membranes with self-healing properties.

Bachelor of Arts, Physics major and Philosophy minor, May 2008

Macalester College, Saint Paul, MN

Senior Project: Ultrafast terahertz radiation for medical and security applications

PROFESSIONAL EXPERIENCE

Research Assistant, University of Cincinnati, Cincinnati, OH

July 2009-Present

• Formulated novel polyimide-poly(aniline)-copolymer-clay and polyimide-silicone-based nanocomposite coatings/membranes with excellent corrosion resistance and exceptional damping ability

• Synthesized highly transparent and conductive graphene/polyimide nanocomposite thin films with exceptional mechanical properties and dimensional stability for fuel cell, battery, organic-photovoltaic and supercapacitor applications

• Performed cyclic voltammery and charge/discharge tests on polymer/graphene composite films to test their capability for Li-ion battery application

• Analyzed corrosion protection and inhibition mechanisms of polyimide-based coatings/thin films using electrochemical technique: DC polarization, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV)

• Developed theoretical polymer-nanocomposite micromechanical models using MatLab and SigmaPlot software to predict and compare the dynamic mechanical properties of polyimide-based nanocomposite thin films to experimental results

• Evaluated cure-kinetics of polyimide-based coatings using Fourier Transform Infrared Spectroscopy (FT-IR)

Invited Peer Reviewer, Polymer Science Journals, October 2009-Present

• Invited by editors to review technical manuscripts in the Journal of Applied Polymer Science and Journal of Inorganic and Organometallic Polymers and Materials

Graduate Research Fellow, University of Cincinnati, Cincinnati, OH

June 2011-August, 2011

• Developed durable and hydrophobic polyimide-silicone hybrid composite coatings for corrosion protection of naval and aerospace aluminum alloy, AA-2024-T3

• Collaborated with the Advanced Materials Characterization Center(AMCC) to study the microstructure and mechanical properties of the hybrid composite coatings/thin films using SEM, DMA, EIS, DCP, FT-IR, TGA and DSC

Teaching Assistant, University of Cincinnati, Cincinnati, OH

January-April 2010 & September-December 2010

• Assigned to polymer processing and Intro to polymer science courses. Held office hours. Assisted with homework problems. Administered and graded quizzes. Operated and maintained electrodeposition and electrochemistry facilities

Student Researcher, University of Cincinnati, Cincinnati, OH

January 2009-June 2009

• Conducted in-depth literature-based research on anti-corrosion epoxy/nanoclay coatings/thin films

• Studied processing and cure mechanism of epoxy coatings/thin films

• Evaluated the advancement in epoxy-based anti-corrosion coatings using literature results

Physics Research Intern, Macalester College, Saint Paul, MN

May -August 2007

• Collaborated with a small group to develop a technique for generating and collecting ultrafast terahertz radiation for biomedical imaging and security applications

• Applied ultrafast terahertz spectroscopy using a femtosecond laser beam to produce photo-excited charge carriers in semiconductors and semiconductor heterostructures

HONORS AND AFFILIATIONS

• University Graduate Council Research Fellowship Award, Summer 2011

• ASM-Oak Ridge National Lab Educational Symposium Essay competition, 2nd place award, 2011

• Midwest SAMPE outstanding graduate student award, 2011

• University Graduate Scholarship, doctoral study, 2009-present

• Society of Plastics Engineers (SPE) conference travel award, Boston, 2010, 2011

• Kofi Annan Scholarship, Macalester College, MN, 2004-2008

• Shelby Davis UWC scholarship, Macalester College, MN, 2004-2008

• Affiliated member of APS, Physics Today, SPE, SAMPE, 2009-present

• Materials Engineering undergraduate mentor, NSF supported program, Summer 2009, 2010, 2011

CONFERENCE PROCEEDINGS & POSTERS

• J. Longun, J.O. Iroh, “Viscoelastic properties of montmorillonite clay/polyimide composite membranes and thin films”, Midwest SAMPE Symposium, National Composite Center, Kettering, OH, February, 2012

• J. Longun, J. O. Iroh, “Processing and Evaluation of Durable Corrosion Inhibiting Polyimide-Silicone Coatings for the protection of Al 2024-T3”, Materials Science and Technology Conference, Columbus, Ohio, October 2011

• J. Longun, J. O. Iroh, “Dynamic Mechanical Properties of Novel Polyimide/Substituted Polyaniline-Copolymer-Clay Nanocomposite films”, ANTEC-SPE 519-523, 2011, Boston, MA, May 2011

• J.O. Iroh, J.Wang, J. Longun, “Clay/polyimide nanocomposite: Electrochemical and Thermomechanical properties”, National Science Foundation conference, Atlanta Georgia, January, 2011

• J. Longun, N. Nguyen, J. O. Iroh, “Advanced polyimide/Polyaniline-copolymer-clay nanocomposites”, ANTEC-Society of Plastics Engineers (SPE) poster session, Orlando, Florida, May 2010

• J.O. Iroh, B. Buschle, J. Longun, E.Obongo, “Hybrid organic flexible solar collectors for smart building construction”, Renewable energy conference, Cocoa Beach, Florida, May, 2009

PUBLICATIONS & PATENTS

• J. Longun, J. O. Iroh, “Nano-graphene/polyimide composites with extremely high rubbery plateau modulus”, Carbon, Vol. 50(5), 1823–1832, 2012.

• J. O. Iroh, J. Longun, “Viscoelastic properties of montmorillonite clay/polyimide composite membranes and thin films”, J Inorg Organomet polym. Vol. 21. DOI 10.1007/s10904-011-9613-4, 2011.

• J. Longun, J. O. Iroh, “Novel polyimide/substituted polyaniline-copolymer-clay nanocomposite films with high damping ability”, J. Appl. Polym Sci., xxx-xxx-2011(in press)

• J. Longun, J. O. Iroh, “Synthesis and characterization of hybrid polyimide/substituted copolymer-clay nanocomposite films”, J. Synthetic Metals, 2011(under peer review)

• J. Longun, B. Buschle, N. Nguyen, M. Lo, J. O. Iroh, “Comparison of Poly(o-anisidine) and Poly(o-anisidine-co-aniline) Copolymer Synthesized by Chemical Oxidative Method”, J.Appl. polym. Sci, Vol. 118, 3123–3130 ,2010.

• J. Longun, J. O. Iroh, “ In-situ polyimide/silicone molecular composite membranes and thin films with excellent thermal-mechanical and electrochemical properties”,-UC-2012(invention disclosure filed as co-inventor)

• J Longun, J.O. Iroh, “Highly transparent and electrically conductive polymer/graphene nanocomposite films” (2011) [provisional Patent: US Patent No. 61/556,429]

• J. Longun, J. O. Iroh, “Low cost UV-absorbers and solar collectors for UV and photovoltaic technology”, (2009) UC 110-028(invention disclosure filed as co-inventor)

Contact this candidate