Self-polymerization of Eu（TTA）3AA in rubber and their fluorescence effect
来源期刊：Journal of Rare Earths2013年第12期
论文作者：姚璐 温世鹏 段雪 胡晓丹 车明生 景文峰 刘浩亮 刘力
文章页码：1130 - 1136
摘 要：A simple europium complex,Eu（TTA）3AA（TTA=4,4,4-trifluoro-1-（2-thienyl）-1,3-butanedione,AA=acrylic acid）was synthesized by a simple solution method.Then,two kinds of rubber matrix,nitrile-butadiene rubber（NBR）and silicone rubber（SiR）were used as the substrate for Eu（TTA）3AA to prepare fluorescence composites.The neat Eu（TTA）3AA complex showed the ability of self-polymerization when it was heated at 145°C.It was found that the fluorescence intensity of the neat Eu（TTA）3AA decreased over 70%when the polymerization time was over 25 min at 145°C.The results also revealed that the polymerizated Eu（TTA）3AA could be dispersed in nano-scale in two matrices and the luminescent intensities decreased 52%in NBR matrix,and 95%in SiR matrix compared with two relative compounds without crosslinking.To optimize the luminescence intensity of the composites,the Eu（TTA）3AA polymerization kinetic process in matrix was investigated in detail by controlling the temperature,the crosslinking agent,etc.The results showed that the peroxide could accelerate Eu（TTA）3AA self-polymerization in the rubber matrix,and therefore improved the dispersion,but not be helpful for the luminescence intensity enhancement.In addition,the relatively higher luminescence intensity in Eu（TTA）3AA/NBR in comparison to that of Eu（TTA）3AA/SiR might contribute to the interaction between nitrile group（–CN）in NBR and Eu-complexes,suggesting that the luminescence intensity of the composites also depended on the matrix characteristics.
姚璐1,2，温世鹏1,3,2，段雪1，胡晓丹4，车明生4，景文峰4，刘浩亮5，刘力1,2
1. State Key Laboratory of Chemical Resource Engineering,College of Materials Science and Engineering,Beijing University of Chemical Technology2. Beijing Engineering Research Center of Advanced Elastomers,College of Materials Science and Engineering,Beijing University of Chemical Technology3. State Key Laboratory of Organic-Inorganic Composites,College of Materials Science and Engineering,Beijing University of Chemical Technology4. The 404 Company Limited.,China National Nuclear Corporation5. Offshore Petroleum Engineering Co.,Ltd.,PetroChina
摘 要：A simple europium complex,Eu（TTA）3AA（TTA=4,4,4-trifluoro-1-（2-thienyl）-1,3-butanedione,AA=acrylic acid）was synthesized by a simple solution method.Then,two kinds of rubber matrix,nitrile-butadiene rubber（NBR）and silicone rubber（SiR）were used as the substrate for Eu（TTA）3AA to prepare fluorescence composites.The neat Eu（TTA）3AA complex showed the ability of self-polymerization when it was heated at 145°C.It was found that the fluorescence intensity of the neat Eu（TTA）3AA decreased over 70%when the polymerization time was over 25 min at 145°C.The results also revealed that the polymerizated Eu（TTA）3AA could be dispersed in nano-scale in two matrices and the luminescent intensities decreased 52%in NBR matrix,and 95%in SiR matrix compared with two relative compounds without crosslinking.To optimize the luminescence intensity of the composites,the Eu（TTA）3AA polymerization kinetic process in matrix was investigated in detail by controlling the temperature,the crosslinking agent,etc.The results showed that the peroxide could accelerate Eu（TTA）3AA self-polymerization in the rubber matrix,and therefore improved the dispersion,but not be helpful for the luminescence intensity enhancement.In addition,the relatively higher luminescence intensity in Eu（TTA）3AA/NBR in comparison to that of Eu（TTA）3AA/SiR might contribute to the interaction between nitrile group（–CN）in NBR and Eu-complexes,suggesting that the luminescence intensity of the composites also depended on the matrix characteristics.
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