Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G15: Physics in Polymer Recycling and Upcycling I
11:30 AM–2:18 PM,
Tuesday, March 7, 2023
Room: Room 207
Sponsoring
Unit:
DPOLY
Chair: Wenlin Zhang, Dartmouth College
Abstract: G15.00006 : In Situ X-Ray Scattering Methods for the Characterization of Polymers During Recycling*
12:54 PM–1:06 PM
Presenter:
Sarah A Hesse
(BOTTLE, SLAC National Accelerator Laboratory)
Authors:
Sarah A Hesse
(BOTTLE, SLAC National Accelerator Laboratory)
Nicholas A Rorrer
(BOTTLE, National Renewable Energy Laboratory)
SriBala Gorugantu
(BOTTLE, Northwestern University)
Bonnie L Buss
(BOTTLE, National Renewable Energy Laboratory)
Ana R. C Morais
(BOTTLE, National Renewable Energy Laboratory)
David G Brandner
(BOTTLE, National Renewable Energy Laboratory)
Scott R Nicholson
(BOTTLE, National Renewable Energy Laboratory)
Avantika Singh
(BOTTLE, National Renewable Energy Laboratory)
Bryon S Donohoe
(BOTTLE, National Renewable Energy Laboratory)
Jason S DesVeaux
(BOTTLE, National Renewable Energy Laboratory)
Taylor Uekert
(BOTTLE, National Renewable Energy Laboratory)
Megan Browning
(BOTTLE, National Renewable Energy Laboratory)
Jennifer Quigley
(BOTTLE, National Renewable Energy Laboratory)
Anjani K Maurya
(BOTTLE, SLAC National Accelerator Laboratory)
Julia B Curley
(BOTTLE, National Renewable Energy Laboratory)
Joel Miscall
(BOTTLE, National Renewable Energy Laboratory)
Christopher J Takacs
(BOTTLE, SLAC National Accelerator Laboratory)
Alberta C Carpenter
(BOTTLE, National Renewable Energy Laboratory)
Robert M Baldwin
(BOTTLE, National Renewable Energy Laboratory)
Gregg T Beckham
(BOTTLE, National Renewable Energy Laboratory)
Linda J Broadbelt
(BOTTLE, Northwestern University)
Christopher J Tassone
(BOTTLE, SLAC National Accelerator Laboratory)
Robert D Allen
(BOTTLE, National Renewable Energy Laboratory)
Collaboration:
BOTTLE Consortium, SLAC National Accelerator Laboratory, National Renewable Energy Laboratory, Northwestern University
Using in situ/operando small- and wide-angle X-ray scattering (SAXS/WAXS) techniques at the Stanford Synchrotron Radiation Lightsource (SSRL), we probed polymer deconstruction from the nano (~1-100 nm) to atomic (<1 nm) length scales. Coupled to microkinetic modelling, we differentiated the reaction rate constants for the amorphous and crystalline fractions and explained the average observed reaction rates in terms of interchange between amorphous and crystalline fractions throughout the deconstruction process. The understanding gained from these studies will enable expansion to other polymer systems and deconstruction reactions.
*Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515.This work was performed as part of the BOTTLE™ Consortium and was supported by AMO and BETO under contract no. DE-AC36-08GO28308 with the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC. The BOTTLE Consortium includes members from Northwestern and SLAC funded under contract no. DE-AC36-08GO28308 with NREL.
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