高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (7): 1285.

• 研究快报 • 上一篇    下一篇

利用电子自旋共振技术捕捉烯类单体双光子聚合反应的自由基信号

赵宁1, 孙渝明2, 张元红1, 张宝芹1, 于晓强1, 蒋民华1   

  1. 1. 山东大学晶体材料国家重点实验室,
    2. 信息科学与工程学院, 济南 250100
  • 收稿日期:2010-03-29 出版日期:2010-07-10 发布日期:2010-07-10
  • 通讯作者: 于晓强, 男, 博士, 教授, 博士生导师, 主要从事双光子材料的研究. E-mail: yuxq@sdu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 50673053, NSFC/RGC50218001, 50173015)资助.

Capturing Radical Signal of Two-photon Initiated Photopolymerization of Vinyl Monomer by Means of ESR Technique

ZHAO Ning1, SUN Yu-Ming2, ZHANG Yuan-Hong1, ZHANG Bao-Qin1, YU Xiao-Qiang1*, JIANG Min-Hua1   

  1. 1. The State Key Lab of Crystal Materials,
    2. Optics Department, Shandong University, Jinan 250100, China
  • Received:2010-03-29 Online:2010-07-10 Published:2010-07-10
  • Contact: YU Xiao-Qiang. E-mail: yuxq@sdu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50673053, NSFC/RGC50218001, 50173015)资助.

摘要: 本文通过生长单晶体的方式提纯引发剂. 实验结果表明, 双光子聚合有明确的自由基信号, 属于自由基历程, 单体和自由基间的能量转移是生成自由基的关键因素.

关键词: 双光子, 光聚合反应, 自由基

Abstract: The radical signal of two-photon initiated photopolymerization(TPIP) was captured in site firstly by means of electron spin resnance spectroscopy(ESR) technique and N-tert-butyl-α-phenylnitrone(BPN) captor, and the experimental results clear verify that the reaction of TPIP is radical mechanism. That one/two-photon fluorescence of the initiator can be quenched by monomers. The results show that there is energy transfer between initiator and monomer. Furthermore alone BDBAS can not give radical signal, thus we believe that this energy transfer is very important for producing radicals.

Key words: Two-photon, Photopolymerization, Radical

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