title: Dynamic Bonds in Covalently Crosslinked Polymer Networks for Photoactivated Strengthening and Healing.
abstract: A photoactivated-strengthening polymer network is reported. This approach incorporates dynamic bonds into the network architecture, which enables a secondary polymerization triggered by UV light. Three attributes of this material are demonstrated, including: i) there is simultaneous photoinduced strengthening and healing after the material is severed, ii) bulk property changes are spatially confined via photopatterning, and iii) there is permanent shape change post-irradiation.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, DE, 19716, USA.
authors.forename: Melissa B
authors.initials: MB
authors.lastname: Gordon
authors.affiliation: Department of Material Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA.
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: French
authors.affiliation: Department of Chemical and Biomolecular Engineering, Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, DE, 19716, USA.
authors.forename: Norman J
authors.initials: NJ
authors.lastname: Wagner
authors.affiliation: Department of Chemical and Biomolecular Engineering, Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, DE, 19716, USA.|Department of Material Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Kloxin
mesh_terms: D008027:Light; D055595:Mechanical Phenomena; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D011140:Polyurethanes / Q000737:chemistry; D013859:Thiocarbamates / Q000737:chemistry
chemical_list: D011108:Polymers; D011140:Polyurethanes; D013859:Thiocarbamates
keywords: dynamic bonds; iniferters; photopolymerization; photoresponsive polymer networks; self-healing