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\title{We're Hadi Fares, the 2015 ACS ChemChamps winner, and Dr. Joseph
Schlenoff, Senior Editor of ACS Langmuir, here to talk to you about
polyelectrolytes research and science communications, AUA!}



\author[1]{AmerChemSocietyAMA }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 23, 2026}


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\begin{abstract}
Hi Reddit, We are Hadi Fares, chemistry PhD candidate, and Joseph B.
Schlenoff, Leo Mandelkern Professor of Polymer Science at Florida State
University and Senior Editor of the ACS Langmuir journal. We will answer
questions about our research focused on polymer materials as well as the
ChemChamps competition organized by the American Chemical Society.
Joseph Schlenoff (JBS): I am a chemist interested in polyelectrolyte and
zwitterated interfaces and their bioapplicability. Polyelectrolytes were
thought to be un-processable until a couple of decades ago. We have
discovered ways to process biocompatible synthetic polyelectrolytes
using salt instead of heat. Salt helps in exposing the charged sites in
these macromolecules, making it easier to extrude them to form different
shapes such as tapes, tubes and rods, or to deposit them using the
layer-by-layer (Lbl) technique or spin-coating. Hadi Fares (HF): I am
interested in charge compensation and diffusion inside polyelectrolyte
films and complexes. We found a way to eliminate salt trapped in
polyelectrolyte multilayers during buildup to obtain stoichiometric
uniform thin films (few hundreds of nanometers). Using this new
platform, I'm currently studying polyelectrolyte diffusion in these
films in an attempt to make better materials and understand the way
polyelectrolytes behave in complexes. These films have been proposed for
uses as coatings and reservoirs in fields ranging from electronics to
medicine. I'm also the winner of last year's ``Chemistry Champions'', a
science communication competition organized by the American Chemical
Society. Besides the many lessons I learned about communicating science,
the competition has allowed me to travel to attend a public briefing on
science education policy on Capitol Hill in Washington, DC. I also shot
an upcoming ``ACS Reactions''
(https://www.youtube.com/user/ACSReactions) video about why we salivate
when we see food (my favorite topic). You can read more about my
ChemChamps experience in this blog post
(https://speakingaboutscience.wordpress.com/). I will also be answering
questions about this year's edition of the competition starting soon.
Every chemist 35 or under should apply!! Feel free to ask us anything
about polyelectrolyte materials, life in graduate school or ChemChamps!
We will be online at 11:00 am ET (8 am PST, 4 pm UTC) to begin answering
your questions. {[}EDIT{]} 11:00am ET, I am online to answer your
questions. Thanks for the participation! - HF {[}EDIT{]} 12:00pm ET, I
answered some questions. We will be back at 1:00pm ET to answer more.
Thank you! -HF {[}EDIT{]} 1:00pm ET, I am online to answer more
questions -JBS%
\end{abstract}%



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