化工学报2025，Vol.76Issue(3)：1305-1311,7.DOI:10.11949/0438-1157.20240758
对甲氧基肉桂酰甲酰胺基二硫化合物合成及其光引发性能
Synthesis and photoinitiation property of a cinnamyl formamide disulfide compound
摘要
Abstract
Aromatic disulfides have attracted much attention as a new type of LED photoinitiator in recent years.However,the reported aromatic disulfide photoinitiators have a short absorption wavelength and cannot be used in photopolymerization systems triggered by long-wavelength LED light sources with stronger penetration.Therefore,a cinnamyl formamide disulfide photoinitiator(O-BSCF)with long absorption wavelength was designed and synthesized,and its light absorption,photodegradation,and photoinitiating property were investigated in detail.The research results indicated that O-BSCF exhibited a maximum absorption wavelength at 217 nm,with significant light absorption also observed at 405 nm and 455 nm.O-BSCF efficiently initiated the photopolymerization of the Bis-GMA/TEGDMA system under 405 nm and 455 nm LED irradiation.After 200 s of 405 nm and 455 nm LED exposure,final double bond conversion rate of the Bis-GMA/TEGDMA system initiated by O-BSCF achieved 85.2%and 72.5%,respectively,with maximum double bond polymerization rates of 3.05%/s and 1.69%/s,surpassing those of the control group initiated by CQ/DMAEMA.The degradation mechanism of O-BSCF involves S—S bond cleavage under light irradiation,generating arylthiyl radicals that can initiate the photopolymerization of acrylate monomers.Moreover,O-BSCF demonstrated excellent photobleaching performance,suggesting its significant potential for applications in colorless and deep LED curing fields.关键词
LED光聚合/肉桂酰甲酰胺/二硫化合物/光引发剂Key words
LED photopolymerization/cinnamyl formamide/disulfide compound/photoinitiator分类
化学化工引用本文复制引用
崔瑞雪,张玉含,孙芳..对甲氧基肉桂酰甲酰胺基二硫化合物合成及其光引发性能[J].化工学报,2025,76(3):1305-1311,7.基金项目
国家自然科学基金项目(52073018) （52073018）
