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SUMMARY:Thermoplastic Elastomer Thermosets Achieving Morphology-Regulated O
 rthogonal Working/Healing Conditions
LOCATION:Chemistry, A101
TZID:America/Denver
DTSTART:20210910T160000
UID:2026-04-25-02-04-45@natsci.colostate.edu
DTSTAMP:20260425T020445
Description:Research Seminar:  Conventional thermosets\, despite their tec
 hnological significance in today’s materials economy\, present a modern 
 sustainability challenge because densely crosslinked network structures pr
 eclude recyclability or reprocessability. Emerging covalent adaptable netw
 orks (CANs) rely on dynamic bond exchange imbedded within crosslinks to re
 nder thermoplastic processability and offer sustainable alternatives to pe
 rmanently crosslinked materials\, but ideal orthogonal working/reprocessin
 g conditions (thermoset performance during work\, thermoplastic processabi
 lity during healing) are not achievable by current examples. In this semin
 ar I will discuss a CAN system of additive/catalyst-free\, fully reprocess
 able\, crosslinked tri-block copolymer (tri-BCP) thermoplastic elastomer n
 etworks based on acid-anhydride bond exchange and operated on a thermomech
 anical-responsive activation mechanism. The unique functionality of the tr
 i-BCP architecture enables self-assembly into inter-linked\, hexagonally p
 acked cylinder nanostructures which allow us to leverage the separation of
  exchange-active and non-active domains and regulate “productive” (int
 er-domain) and “non-productive” (intra-domain) exchange\, achieving id
 eal work/healing orthogonality. 4:00 pm
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