POS8-0847
Development of Photocurable Dental Resins Using Methacrylate-Functionalized Polyrotaxane
Topic
S8. Frontiers of Functional Polymers in Biology and Medicine
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Seoyoung Han (Pusan National University)
Co-Author(s)
Abstract
This study aims to develop a novel movable crosslinked 3D network structure by using supramolecular movable polyrotaxane as a mobile crosslinker. Polyrotaxane was synthesized by threading β-cyclodextrin (β-CD) onto a poly(propylene glycol) bis(2-aminopropylether) (PPG-NH2, Mn=4000) chain, followed by end-capping with N-(triphenylmethyl)-glycine (Trt-Gly-OH) and DMT-MM as a catalyst. The slide-ring movement of threaded β-CDs on polyrotaxane enhanced mechanical properties including stress relaxation, tensile strength, and flexibility. To enable photopolymerization, polymerizable double bonds derived from methacryloyl chloride (MAC) were introduced onto the threaded β-CDs using triethylamine (TEA) as a catalyst. The synthesized polyrotaxane was characterized by ¹H-NMR, FT-IR, DSC and TGA.
