铕铽混合掺杂聚合物的发光性能与微观形貌  

Fluorescence Property and Microscopic Morphology of Polymers Co-doped with Eu and Tb

作　　者：林美娟[1] 王文[1] 章文贡[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007

出　　处：《稀土》2006年第3期11-15,共5页Chinese Rare Earths

基　　金：福建省自然科学基金重点项目(E0120002)

摘　　要：将具有荧光性质的铕、铽以三异丙氧基稀土单一或混合的形式掺入甲基丙烯酸甲酯(MM A)或甲基丙烯酸甲酯与苯乙烯(S t)的混合单体中,形成凝胶,经原位聚合制备铕、铽单一或混合掺杂的PMM A或P(MM A-co-S t)聚合物,研究铕铽混合掺杂对材料发光性能的影响,并观察聚合物的微观形貌。结果表明:铕、铽混合掺杂PMM A或P(MM A-co-S t)中,主要呈现Eu3+的特征荧光,并使Eu3+发射强度显著提高;T b3+544nm处最强的发射峰消失了,而较弱的621nm处的发射峰却显著增强。ESEM显示了掺杂聚合物呈交联网络状的微观形貌。A gel is formed by mixing directly triisopropoxyl rare earth （europium , terbium or their mixture） with methyl methacrylate or the monomer mixture of methyl methacrylate and styrene, which are prepared by in-situ polymerization. The fluorescence property and microscopic morphology of materials are studied. The results show that europium and terbium co-doping polymers emit mostly characteristic fluorescence of europium ion and its emission intensity is greatly increased, moreover fluorescence of terbium ion in 544nm is quenched and in 621nm is greatly increased. ESEM reveals that crosslinking network structure of PMMA or P （MMA-co-St） materials doped with Eu and Tb.

关 键 词：铕铽混合掺杂 荧光性能 微观形貌 

分 类 号：O63[理学—高分子化学] O482.31[理学—化学]