影像科学与光化学 ›› 2018, Vol. 36 ›› Issue (5): 408-416.DOI: 10.7517/issn.1674-0475.180202

• 论文 • 上一篇    下一篇

高稳定性巯-烯体系的深层光聚合研究

陈利1,2, 吴青阳2, 刘仁1,2, 李治全1,2   

  1. 1. 江南大学 光响应功能分子材料国际联合研究中心, 江苏 无锡 214122;
    2. 江南大学 化学与材料工程学院, 江苏 无锡 214122
  • 收稿日期:2018-02-02 修回日期:2018-03-29 出版日期:2018-09-15 发布日期:2018-09-15
  • 通讯作者: 李治全

Deep Photopolymerization Research of Highly Stable Thiol-ene System

CHEN Li1,2, WU Qingyang2, LIU Ren1,2, LI Zhiquan1,2   

  1. 1. International Research Center for Photoresponsive Molecules and Materials, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China;
    2. School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China
  • Received:2018-02-02 Revised:2018-03-29 Online:2018-09-15 Published:2018-09-15

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9.6 cm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。

关键词: 上转换, 巯-烯光聚合, 深层光聚合, 稳定性, 近红外光

Abstract: 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.

Key words: up-conversion, thiol-ene photopolymerization, deep photopolymerization, stability, near-infrared light