UV-VIS spectra and photoinitiation behaviors of acylphosphine oxide and bisacylphosphine oxide derivatives in unfilled, light-cured dental resins.
作者： Kunio IKEMURA , Kensuke ICHIZAWA , Mariko YOSHIDA , So ITO , Takeshi ENDO
DOI: 10.4012/DMJ.27.765
关键词: Polymer chemistry 、 Reactivity (chemistry) 、 Photopolymer 、 Materials science 、 Monomer 、 Differential scanning calorimetry 、 Tertiary amine 、 Ultraviolet visible spectroscopy 、 Methacrylate 、 Oxide
摘要: The aims of this study were to investigate the photoinitiation behaviors acylphosphine oxide (APO) and bisacylphosphine (BAPO) derivatives in comparison D,L-camphorquinone (CQ)/tertiary amine (EDAB) system. Fifty six kinds experimental unfilled, light-cured resins prepared using APO, BAPO, CQ, EDAB, resin monomers, adhesive monomers. measurements ultraviolet-visible (UV-VIS) spectroscopy, photopolymerization with differential scanning calorimeter (photo-DSC) degree conversion (DC) determination performed. Results showed that UV-VIS spectra all APO BAPO possessed lambda max ranging between 365 416 nm. Their not influenced by acidic monomers formulated unfilled Bis-GMA-based (p < 0.05). Although exhibited higher reactivity than CQ/EDAB 6-methacryloyloxyhexcyl phosphonoacetate (6-MHPA)/ 2-hydroxyethyl methacrylate (HEMA) 6-MHPA/glycerol monomethacrylate (GM)-based resins, it was found there no statistically significant differences DC (%) [44.2(6.5)-51.2(4.3)] [42.4(4.4)-47.5(3.7)] It concluded photoinitiators comparable CQ/tertiary
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