影像科学与光化学 ›› 1998, Vol. 16 ›› Issue (1): 1-7.DOI: 10.7517/j.issn.1674-0475.1998.01.1

• 研究论文 •    下一篇

可见光敏引发聚合甲基丙烯酸甲酯的动力学研究

李立东1, 杨永源1, 赵春颖1, 徐伟1, 张存林1   

  1. 1. 中国科学院感光化学研究所, 北京 100101;
    2. 首都师范大学, 北京 100037
  • 收稿日期:1997-01-31 修回日期:1997-05-20 出版日期:1998-02-20 发布日期:1998-02-20
  • 通讯作者: 杨永源
  • 基金资助:
    国家自然科学基金资助项目(批准号:59573009)

KINETIC STUDY OF VISIBLE LIGHT PHOTOSENSITIVE INITIATING POLYMERIZATION OF METHYLMETHACRYLATE

LI Lidong1, YANG Yongyuan1, ZHAO Chunying1, XU Wei1, ZHANG Cunlin 1   

  1. 1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China;
    2. Capital Normal University, Beijing 100037, P. R. China
  • Received:1997-01-31 Revised:1997-05-20 Online:1998-02-20 Published:1998-02-20

摘要: 本论文用膨胀计法进行了甲基丙烯酸甲酯在氯仿溶液中可见光光敏引发聚合动力学的研究。此光敏引发体系由光敏剂1,3,3-三甲基-2-[5-(1,3,3-三甲基-2-吲哚叉)-1,3-戊二烯]吲哚碘盐(简称NK-529),引发剂邻氯代六芳基双咪唑(简称o-Cl-HABI),氢给体3-巯基-4-甲基-4氢-1,2,4-三氮唑(简称MTA)组成。研究结果表明,此光敏聚合体系的光聚合速率与各组分的动力学方程如下:Rp=K(NK-529)0.51(HABI)0.41(MTA)0.36(MMA)1.0.

关键词: 双咪唑, 光聚合, 染料增感

Abstract: The long-wavelength(633nm) sensitive photoinitiating system composed of 1,3,3 trimethyll-2-[5-(1,3,3-trimethyl-2-indolylidene)-1,3-pentadienyl]-indoliumiodide(NK 529),2-chlorohexaarylbiimidazole(o-Cl-HABI) and hydrogen donor,3-mercapto-4-methyl-4H-1,2,4,-triazole(MTA) can be used to initiate the polymerization of methyl methacrylate(MMA). The kinetic study was carried out in chloroform solution at 30℃ by dilatometry. The relation shipbetween polymerization rate and the concentration of NK-529,o-Cl-HABI,MTA and MMA was studied. As the result shows,the kinetic formulation was deduced: Rp=K[NK-529]0.51[HABI]0.41[MTA]0.36[MMA]1.0. The photopolymer system can record stable hologram under 633 nm He-Ne laser.

Key words: biimidazole, photopolymerixaation, dye sensitization