Wed, Sep 29, 2021 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Malancha Gupta, USC
Talk Title: Initiated Chemical Vapor Deposition of Polymer Coatings and Membranes
Abstract: Initiated chemical vapor deposition (iCVD) is a solventless process that can be used to synthesize polymer films and coatings with a range of functionalities including hydrophilicity, hydrophobicity, light-responsiveness, and thermo-responsiveness. This talk will present the mechanism, capabilities, and advantages of the iCVD process. We will demonstrate that the iCVD process can be used to modify the surface properties of fibers, membranes, and microfluidic channels for applications in textiles, separations, and diagnostics. We will also demonstrate that polymers can be deposited onto low vapor pressure liquids including ionic liquids and silicone oils to fabricate ultrathin freestanding polymer films, nanoparticles, core-shell particles, and gels. We will also show that lowering the temperature of the substrate below the freezing point of the monomer leads to the formation of polymer membranes. These membranes can be deposited onto porous substrates to create hierarchical porous-on-porous structures that can enable improved filtration for water purification and sensor applications.
Biography: Malancha Gupta is the Gabilan Distinguished Professor at the Mork Family Department of Chemical Engineering and Materials Science at the University of Southern California. She received her B.S. in chemical engineering from The Cooper Union in New York City in 2002. She received her Ph.D. in chemical engineering from Massachusetts Institute of Technology in 2007 under the guidance of Professor Karen Gleason. From 2007-2009, she was a postdoctoral fellow in the department of chemistry and chemical biology at Harvard University working under the guidance of Professor George Whitesides. Her current research interests include polymer coatings and thin films, chemical vapor deposition, ionic liquids, and microfluidics. She has mentored 16 doctoral students and published 68 peer-reviewed manuscripts. She received the Jack Munushian Early Career Chair in 2013, the National Science Foundation CAREER award in 2013, and the USC Viterbi School of Engineering Junior Faculty Award in 2014. She was director of the chemical engineering program from 2018-2020 and she has served as chair of the Women in Science and Engineering (WiSE) engineering committee at USC since 2015.
Host: AME Department
More Info: https://usc.zoom.us/j/97427241653?pwd=UGd2aXY2b3dsQkxMdzdvcnNBMjRJZz09
Location: Seaver Science Library (SSL) - 202
Audiences: Everyone Is Invited
Contact: Tessa Yao