Richard Kotek

Richard Kotek

Associate Professor, TECS

Polymer and Color Chemistry
Textile Engineering, Chemistry and Science

  • Office: College of Textiles 3143
  • Phone: 919-515-6585
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About Richard Kotek

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Professor Kotek graduated from the Man-Made Fibers Institute at Lodz Polytechnic in Poland where he specialized in man-made fiber technology and polymer chemistry. He developed flame-retardant polyester fibers and completed his Ph. D. thesis under the direction of Professor B. Laszkiewicz.
Following completion of his Ph. D., he worked at the Man-Made Fibers Institute and then came to the United States to work as a postdoctoral research associate for Professor W. R. Krigbaum at Duke University.

While with Professor Krigbaum, Dr. Kotek carried out a liquid crystalline polymer research program. His work involved a new monomer and polymer synthesis. Soon after completing his postdoctoral assignment, he joined the R&D department at BASF Corporation (where he gained valuable industrial experience). He was involved in expanding fundamental understanding of spinning processes and also carried out studies on fiber morphology and molecular orientation. He developed and patented a new semi-continuous process for the depolymerization of nylon 6 polymer. Dr. Kotek also holds patents for making hollow fibers. He has extensive experience in fiber extrusion, particularly nylon and polyester fibers.

Dr. Kotek joined the Wilson College of Textiles at North Carolina State University in August 1999.

He is married and has two children, Magdalena and Kristof.

His wife, Elizabeth, is a licensed mechanical engineer practicing in the Triangle. Magdalena is a graduate of the School of Foreign Service at Georgetown University, and Kristof is a student at Athens Drive High School.

Dr. Kotek enjoys reading and playing tennis and golf. He is a youth soccer coach.

Research

Dr. Kotek is a polymer chemist with an interest in fundamental research on the structure/property, processing, and manufacturing (or synthesis) of fiber forming polymers particularly:

  • Biopolymers and liquid crystalline polymers for specialized end uses.
  • Nylon, polyester and polypropylene for use in industrial applications
  • Fundamental research on the formation of hollow fibers.
  • Molecular orientation of complex filaments by using sound propagation techniques.
  • Adhesion of polymer melts to metal surfaces.
  • Efficient depolymerization and/or recovery of monomers from fibrous materials.

Publications

Melt-spun PLA liquid-filled fibers: physical, morphological, and thermal properties
Naeimirad, M., Zadhoush, A., Neisiany, R. E., Salimian, S., & Kotek, R. (2019), JOURNAL OF THE TEXTILE INSTITUTE, 110(1), 89–99. https://doi.org/10.1080/00405000.2018.1465336
A review on aerogel: 3D nanoporous structured fillers in polymer-based nanocomposites
Salimian, S., Zadhoush, A., Naeimirad, M., Kotek, R., & Ramakrishna, S. (2018), POLYMER COMPOSITES, 39(10), 3383–3408. https://doi.org/10.1002/pc.24412
Recent advances in core/shell bicomponent fibers and nanofibers: A review
Naeimirad, M., Zadhoush, A., Kotek, R., Neisiany, R. E., Khorasani, S. N., & Ramakrishna, S. (2018), Journal of Applied Polymer Science. https://doi.org/10.1002/app.46265
Development of high-tenacity, high-modulus poly(ethylene terephthalate) filaments via a next generation wet-melt-spinning process
Yoon, J. H., Avci, H., Najafi, M., Nasri, L., Hudson, S. M., & Kotek, R. (2017), Polymer Engineering and Science, 57(2), 224–230. https://doi.org/10.1002/pen.24406
Production of polyolefins
Kotek, R., Afshari, M., Avci, H., & Najafi, M. (2017), Polyolefin Fibres: Structure, Properties and Industrial Applications, 2nd Edition, 189–264. https://doi.org/10.1016/b978-0-08-101132-4.00007-2
Novel cellulose-collagen blend biofibers prepared from an amine/salt solvent system
Boy, R., Narayanan, G., Chung, C. C., & Kotek, R. (2016), International Journal of Biological Macromolecules, 92, 1197–1204. https://doi.org/10.1016/j.ijbiomac.2016.08.010
Properties of cellulose-soy protein blend biofibers regenerated from an amine/salt solvent system
Boy, R., Bourham, M., & Kotek, R. (2016), Cellulose, 23(6), 3747–3759. https://doi.org/10.1007/s10570-016-1072-1
Properties of chitosan/soy protein blended films with added plasticizing agent as a function of solvent type at acidic pH
Boy, R., Maness, C., & Kotek, R. (2016), International Journal of Polymeric Materials and Polymeric Biomaterials, 65(1), 11–17. https://doi.org/10.1080/00914037.2015.1038821
Controlling of threadline dynamics via a novel method to develop ultra-high performance polypropylene filaments
Avci, H., Kotek, R., & Toliver, B. (2015), Polymer Engineering and Science, 55(2), 327–339. https://doi.org/10.1002/pen.23908
High-performance filaments by melt spinning low viscosity nylon 6 using horizontal isothermal bath process
Najafi, M., Avci, H., & Kotek, R. (2015), Polymer Engineering and Science, 55(11), 2457–2464. https://doi.org/10.1002/pen.24135

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Grants

hIB MELT SPINNING PROCESS for PRODUCTION of ULTRA-HIGH TENACITY NYLON 6 TECHNICAL YARNS
Honeywell International, Inc.(8/15/15 - 4/15/16)
hIB Melt Spun/Melt Ordered Process for Production of Ultra-High Tenacity/Modulus Pet Technical Yarns
Truetzschler Group(11/01/15 - 12/31/16)
Understanding Macro-Structural Differences of a Nike Provided Set of Sport Knit T-Shirt Fabrics
Nike, Inc.(5/01/14 - 8/31/15)
Development of Solvent Systems and Product Screening Samples In Support of High Soy Protein Content Cellulose Fibers
NC Soybean Producers Association, Inc.(11/30/-1 - 6/30/12)
Development of Solvent Systems and Product Screening Samples In Support of High Soy Protein Content Cellulose Fibers
NC Soybean Producers Association, Inc.(12/01/09 - 12/01/10)
Novel Melt Spun/Melt Ordered Process for Producing High Performance Polyester Fibers
Atex Technologies, Inc.(11/30/-1 - 8/31/12)
New Dynamics Controlled Melt Spun/Melt Ordered Process Yielding Ultra-High Tenacity/Modulous Fibers
SwissTex Filament Yarn Technologies(11/30/-1 - 12/31/12)
The National Textile Center: High Modulus Aliphatic Nylon Fibers via Lewis-Acid Complexation (M05-NS05)
NCSU National Textile Center Program(4/01/08 - 3/31/09)
Preparation and Characterization of Cellulose Microcellular Foams for Pigment Applications
NCSU Faculty Research & Professional Development Fund(7/01/08 - 6/30/09)
Production of New Biocidal Textiles Using Advanced Nano and Melt Spinning Techniques
National Science Foundation (NSF)(9/01/08 - 8/31/10)

Teaching

  • TC461 - Laboratory Exercises for Fiber Forming Polymers ,

Areas of Expertise