Affiliation:
1. Beckman Institute for Advanced Science and Technology University of Illinois at Urbana − Champaign Urbana IL 61801 USA
2. Department of Chemistry University of Illinois at Urbana − Champaign Urbana Illinois 61801 USA
3. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
4. Department of Materials Science and Engineering University of Illinois at Urbana − Champaign Urbana IL 61801 USA
Abstract
AbstractFrontal ring‐opening metathesis polymerization (FROMP) presents an energy‐efficient approach to produce high‐performance polymers, typically utilizing norbornene derivatives from Diels–Alder reactions. This study broadens the monomer repertoire for FROMP, incorporating the cycloaddition product of biosourced furan compounds and benzyne, namely 1,4‐dihydro‐1,4‐epoxynaphthalene (HEN) derivatives. A computational screening of Diels–Alder products is conducted, selecting products with resistance to retro‐Diels–Alder but also sufficient ring strain to facilitate FROMP. The experiments reveal that varying substituents both modulate the FROMP kinetics and enable the creation of thermoplastic materials characterized by different thermomechanical properties. Moreover, HEN‐based crosslinkers are designed to enhance the resulting thermomechanical properties at high temperatures (>200 °C). The versatility of such materials is demonstrated through direct ink writing (DIW) to rapidly produce 3D structures without the need for printed supports. This research significantly extends the range of monomers suitable for FROMP, furthering efficient production of high‐performance polymeric materials.
Funder
Energy Frontier Research Centers