Hello! I am Jinghan He. Phd candidate of Armani Research Group.
Jinghan is dedicated to conduct interdisciplinary research on synthesis and characterization of light-switching devices, functional materials and bio-imaging probes.
Polypropylenes are the most manufactured plastics after polyethylenes. Carbon nanotubes are widely studied fillers due to their excellent mechanical performance. In my project, I controlled the crystal structures of polypropylene/carbon nanotube composites and improved their mechanical properties.
A polymer brush is a chemical interface where one end of the polymer chain is immobilized to the surface. Nanopatterned polymer brushes are interesting due to their smart morphological responses in nano-order under external stimuli. My project was to prepare nanopatterned polymer brushes with epitaxial crystallization.
Augest 2017 - May 2018
Teaching lab sections of General Chemistry 105A for freshmen.
October 2015 - January 2016
Working as an English teaching assistant in course Introduction of Chemistry and Biotechnology.
September 2013 - June 2014
Working as a student research assistant to collaborate research with grad students. Testing on polymer materials with Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA).
2017 - PRESENT
University of Southern California, US
Research in Armani lab coming soon!
2015 - 2017
University of Tokyo, Japan
- Synthesis of poly(L-lactide) (PLLA) block copolymers with controlled radical polymerizations.
- Use atomic force microscopy (AFM) to probe PLLA crystals in nano-order.
- Use epitaxial crystallization and Grafting-to method to grow nanopatterned polymer brushes.
2010 - 2014
Sichuan University, China
- Core courses include polymer chemistry, polymer physics, polymer processing, etc.
- Use a Banbury mixer to fabricate isotactic polypropylene (iPP)/carbon nanotube composites.
- Study polymorphic crystals of iPP by DSC, TGA and X-ray diffraction.