摘要
传统巯-烯光聚合体系存在储存稳定性差、气味大、UV光聚合深度受限等问题,本文通过单体优化,制备了一种稳定性好、气味小的巯-烯光聚合体系,并采用近红外光诱导上转换纳米粒子发光的策略,成功实现了巯-烯体系9.6cm聚合深度,双键转化率达80%,且固化样品具有较好的材料均一性和热稳定性(~335℃),有望应用于牙科修复材料和厚层复合材料的光固化。
Traditional thiol-ene photopolymerization system suffers from poor stability,odor issue and limited curing depth.In this paper,a highly stable thiol-ene photopolymerization system with low odor was prepared via optimization of monomers.Polymerization depth of 9.6 cm with about 80%double bond conversion was successfully achieved employing the strategy based on near-infrared light(NIR)induces up-conversion nanoparticles(UCNPs)luminescence.The cured sample exhibited good homogeneity and thermal stability(~335℃),which shows potential in the applications of photocuring of dental restoration materials and thick composites.
作者
陈利
吴青阳
刘仁
李治全
CHEN Li;WU Qingyang;LIU Ren;LI Zhiquan(International Research Center for Photoresponsive Molecules and Materials,Jiangnan University, Wuxi 214122,Jiangsu,P.R.China;School of Chemical and Material Engineering,Jiangnan University, Wuxi 214122,Jiangsu,P.R.China)
出处
《影像科学与光化学》
CAS
CSCD
2018年第5期408-416,共9页
Imaging Science and Photochemistry
关键词
上转换
巯-烯光聚合
深层光聚合
稳定性
近红外光
up-conversion
thiol-ene photopolymerization
deep photopolymerization
stability
near-infrared light
