| Title |
Sustainable Additive Manufacturing of Polyelectrolyte Photopolymer Complexes |
| ID_Doc |
29819 |
| Authors |
Kolibaba, TJ; Higgins, CI; Crawford, NC; Samaniuk, JR; Killgore, JP |
| Title |
Sustainable Additive Manufacturing of Polyelectrolyte Photopolymer Complexes |
| Year |
2023 |
| Published |
Advanced Materials Technologies, 8.0, 9 |
| DOI |
10.1002/admt.202201681 |
| Abstract |
Polyelectrolyte complexes (PECs), assemblies of oppositely charged polymers with powerful properties and wide-ranging applications, are currently not melt-processable via any conventional means and have been limited commercially to applications only as coatings. Here, a unique strategy of pairing a polycation with an oppositely charged photopolymerizable monomer is employed. Vat photopolymerization of this mixture yields 3D spatial control over PECs for the first time. The properties of these 3D-printed PECs are evaluated and are found to be similar to conventionally studied PEC materials. The water sensitivity of the PEC parts is adjustable through the incorporation of a small amount of a hydrophilic covalent crosslinker, highlighting potential future applications of these materials in 4D printing. Finally, the upcyclability of the additively manufactured PECs is demonstrated through the dissolution of a printed part and its incorporation into virgin resin to yield a part composed of partially recycled material. This chemistry has the potential to dramatically expand the application space of PEC materials and is a step towards a more circular economy for the field of additive manufacturing. |
| Author Keywords |
digital light processing; polyethylenimine; recyclability; stereolithography; vat photopolymerization |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000921465200001 |
| WoS Category |
Materials Science, Multidisciplinary |
| Research Area |
Materials Science |
| PDF |
https://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1002/admt.202201681
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