Digital light processing 3D printing of modified liquid isoprene rubber using thiol-click chemistry
Lara Strohmeier, Heike Frommwald, Sandra Schlögl
Abstract
alkyl) of the divinyl ether influence the photo-reactivity of the rubber formulations in thiol-ene reactions. In the present study, the highest reactivity is observed for tri(ethylene glycol) divinylether comprising a spacer with three glycol units. To improve the storage stability of the rubber formulation, a radical scavenger is applied to reduce premature crosslinking reactions under dark conditions. With the stabilized liquid rubber formulations, precise 3D structures with features of 0.5 mm are successfully manufactured with bottom-up DLP 3D printing.
Topics & Concepts
IsopreneNatural rubberDieneChloropreneReactivity (psychology)ChemistryPolymer chemistryEthylene glycolThiolClick chemistryPhotopolymerMethacrylatePhotochemistryOrganic chemistryPolymerizationCopolymerPolymerAlternative medicineMedicinePathologyAdditive Manufacturing and 3D Printing TechnologiesPhotopolymerization techniques and applications3D Printing in Biomedical Research