Atomic force microscopy of transfer film development
KE Shaffer, EJ McCumiskey, BA Krick, JJ Ewin, CR Taylor, CP Junk, GS Blackman, WG Sawyer, AA Pitenis
Tribology Letters
Founder and principal scientist
Chris is an expert in fluorine chemistry with more than 25 years of experience making and characterizing both small molecules and polymers. His research has also focused on materials science and tribology.
Founder of CJIdeas, LLC in 2016
More than 15 years as a DuPont research chemist
Senior Research Fellow in Chemistry at Lehigh University
2015 Chair of the American Chemical Society Division of Fluorine Chemistry
Co-author of 25 technical papers and inventor on more than 30 U.S. patents
Ph.D. in Chemistry from Dartmouth College and B.S. in Chemistry from St. Norbert College
CJIdeas, LLC
In 2016, Dr. Junk founded CJIdeas, LLC, a consulting company that provides analytical testing and laboratory synthesis services, as well as IP strategy and project management.
Prior to CJIdeas, he spent more than 15 years at DuPont as a research chemist, working on fluorinated materials and related research topics.
Dr. Junk has co-authored 25 technical papers and is an inventor on more than 30 U.S. patents. He is a Senior Research Fellow in the Chemistry department at Lehigh University and was the 2015 Chair of the American Chemical Society Division of Fluorine Chemistry.
Dr. Junk received his Ph.D. in Chemistry from Dartmouth College and his B.S. in Chemistry from St. Norbert College.
Contact ChrisTesting and interpretation
Through CJIdeas, Chris offers testing and interpretation across spectroscopy, microscopy, chromatography, polymer characterization, and thermal analysis.
Infrared spectroscopy for gas, liquid, and solid samples
UV/Visible spectroscopy
NMR spectroscopy for 1H, 19F, and 13C nuclei
Elemental analysis
SEM-EDX scanning electron microscopy with elemental analysis
GCMS and LCMS chromatography / mass spectrometry
Gel permeation chromatography
Thermogravimetric analysis
Differential scanning calorimetry
Optical microscopy with digital camera
3D X-ray microtomography
Particle size analysis including SLS, DLS, and BET method
Research
Papers by Chris and his collaborators on fluorine chemistry, polymer wear, and membrane separation. Select a title to view the paper or its publication page.
KE Shaffer, EJ McCumiskey, BA Krick, JJ Ewin, CR Taylor, CP Junk, GS Blackman, WG Sawyer, AA Pitenis
Tribology Letters
KE Van Meter, TF Babuska, CP Junk, KL Campbell, MA Sidebottom, T Grejtak, AB Kustas, BA Krick
Tribology Letters
AN Harders, ER Sturd, L Wallisch, H Schmidt, Y Mendoza-Apodaca, DR Corbin, W White, CP Junk, MB Shiflett
Industrial & Engineering Chemistry Research
AN Harders, ER Sturd, JE Vallier, DR Corbin, WR White, CP Junk, MB Shiflett
Journal of Membrane Science
KE Van Meter, CP Junk, KL Campbell, TF Babuska, BA Krick
Macromolecules
KL Campbell, MA Sidebottom, CC Atkinson, TF Babuska, CA Kolanovic, BJ Boulden, CP Junk, BA Krick
Macromolecules
MA Sidebottom, CP Junk, HLS Salerno, HE Burch, GS Blackman, BA Krick
Macromolecules
CP Junk, Y He, Y Zhang, JR Smith, DA Dixon, M Vasiliu, DM Lemal
European Journal of Organic Chemistry
MA Sidebottom, AA Pitenis, CP Junk, DJ Kasprzak, GS Blackman, HE Burch, KL Harris, WG Sawyer, BA Krick
Wear