影像科学与光化学 ›› 2016, Vol. 34 ›› Issue (4): 380-387.DOI: 10.7517/j.issn.1674-0475.2016.04.380

• 应用与发展 • 上一篇    

光点击化学修饰石油树脂研究

扶浩1, 杨建文2, 刘晓暄1   

  1. 1. 广东工业大学 材料与能源学院 高分子材料与工程系, 广东 广州 510006;
    2. 中山大学 材料科学与工程学院, 广东 广州 510275
  • 收稿日期:2016-02-21 修回日期:2016-04-11 出版日期:2016-07-15 发布日期:2016-07-15
  • 通讯作者: 刘晓暄
  • 基金资助:

    国家自然科学基金项目(21374135)资助

Modification of Petroleum Resins by Photo-induced Click Chemistry

FU Hao1, YANG Jianwen2, LIU Xiaoxuan1   

  1. 1. Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, Guangdong, P. R.China;
    2. School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R.China
  • Received:2016-02-21 Revised:2016-04-11 Online:2016-07-15 Published:2016-07-15

摘要:

为改善传统石油树脂改性方法能耗高、效率低等缺陷,本文应用点击化学,在常温下,以甲苯为溶剂,以Darocur1173为光引发剂,在UV-LED灯辐照下,通过3-巯基丙酸与DCPD石油树脂发生巯基-烯加成反应,制备的产物命名为DCPD-COOH。以三苯基膦为催化剂,用甲基丙烯酸缩水甘油酯(GMA)与DCPD-COOH反应,制备了可光固化的丙烯酸酯石油树脂,命名为DCPD-A。固化漆膜的设计配方:DCPD-A(50份)、活性稀释剂甲基丙烯酸羟乙酯(HEMA,50份),光引发剂Darocur1173(5份)。在该配方下制得的固化漆膜其附着力达到0级,铅笔硬度为2H。制备的DCPD-A与极性溶剂或者极性树脂的相容性较好,可应用于光固化涂料和光固化油墨等领域。

关键词: DCPD石油树脂, 巯基/烯点击化学, UV固化, 光化学改性

Abstract:

The traditional modification methods of the petroleum resins are always linked with high energy consumption and low efficiency, To overcome this drawbacks, the photo-induced click chemistry of 3-mercaptopropionic acid was utilized to modify a type of petroleum resin, DCPD, in this work. The reaction was carried out in toluene solution and at room temperature, using Darocur1173 as photoinitiator and a UV-LED lamp as light source. The resulting product is named as DCPD-COOH. In the presence of triphenyl phosphine, DCPD-COOH was allowed to react with glycidyl methacrylate (GMA)to transform to an acrylate petroleum resin, named as DCPD-A. Upon UV irradiation of a mixture of 50 portion of DCPD-A, 50 portion of a reactive diluent 2-hydroxyethyl methacrylate(HEMA), and 5 portion of Darocur1173, a UV-cured thin film with 0 level of adhesion and 2H of pencil hardness was prepared. The modified petroleum resin has good compatibility with polar solvent and resins, applicable as UV-curing coatings and inks.

Key words: DCPD petroleum resin, thiol-ene click chemistry, UV-curing, photo-induced modification