Characterizing and evaluating thiol-ene/thiol-epoxy dual curing composites derived from bio-based epoxies
발표자
()
초록
내용
Herein, we investigated thiol-functionalized polysiloxane oligomers' chemical structure and functionality for AESO and ESO crosslinking. A chemically deformable and commercially available soybean oil-based epoxy resin was presented as a DGEBA replacement to develop a sustainable epoxy network. Furthermore, a new thiol-based polysiloxane oligomer that is not toxic and oil-independent was synthesized using a sol-gel method as an alternative to a more sustainable epoxy curing agent. Since the synthesized thiol-based polysiloxane oligomer is composed of molecules with a siloxane (Si-O-Si) network structure, it was sought to improve the low and non-selective reactivity of vegetable oil by forming an organic-inorganic hybrid network. To prepare thiol-and/thiol epoxy polymers, stoichiometric equivalents of thiol-based polysiloxane oligomers were added to acrylated epoxide soybean oil (AESO) epoxide soybean oil (ESO), respectively, and sequential UV and thermal curing reactions were performed.