title: Malleable and Recyclable Poly(urea-urethane) Thermosets bearing Hindered Urea Bonds.
abstract: Poly(urea-urethane) thermosets containing the 1-tert-butylethylurea (TBEU) structure feature a reversible dissociation/association process of their covalent linkages under mild conditions. Unlike conventional thermosets, TBEU-based poly(urea-urethane) thermosets maintain their malleability after curing. Under high temperature (100 °C) and applied pressure (300 kPa), ground TBEU thermoset powder can be remolded to bulk after 20 min.
authors.affiliation: Department of Applied Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and State Key Laboratory for Mechanical Behaviour of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.|Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Hanze
authors.initials: H
authors.lastname: Ying
authors.affiliation: Aerospace Engineering Department, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Kevin R
authors.initials: KR
authors.lastname: Hart
authors.affiliation: Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Yuxiao
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Aaron J
authors.initials: AJ
authors.lastname: Hsu
authors.affiliation: Aerospace Engineering Department, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Anthony M
authors.initials: AM
authors.lastname: Coppola
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Tae Ann
authors.initials: TA
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Nancy R
authors.initials: NR
authors.lastname: Sottos
authors.affiliation: Aerospace Engineering Department, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Scott R
authors.initials: SR
authors.lastname: White
authors.affiliation: Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. jianjunc@illinois.edu.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Cheng
keywords: dynamic covalent chemistry; hindered urea bonds; malleable; poly(urea-urethane) thermosets; recyclable