摘要
通过三异丙氧基铽犤Tb(OPri)3犦与甲基丙烯酸甲酯(MMA)混合形成的凝胶体在偶氮二异丁腈(AIBN)引发下进行原位聚合的方法获得含铽的聚甲基丙烯酸甲酯,用红外光谱(IR)、动态机械热分析(DMTA)、热失重(TG)、荧光光谱(FS)、溶解性等手段对其进行表征。结果表明:Tb(OPri)3中的Tb3+离子与MMA中的C=O存在很强的配位作用,并导致进一步交联,形成了具有交联网状结构的含铽聚合物。该聚合物具有优异的耐热性与耐溶剂性、高贮能模量、并能发射很强的Tb3+离子的5D47F6,5D47F5,5D47F4,5D47F3跃迁的特征荧光。
After the rapid formation of a gel by mixing of the methylmethacrolate (MMA) and terbium triisopropoxide, the polymethylmethacrylate (PMMA) materials containing terbium were prepared by the in-situ polymerization using AIBN as an initiator. It has been characterized by IR, DMTA, TG, FS, solubility et al. The results show that there is coordination interaction between terbium ion and carboxide (C = O) of MMA, and resulting in crosslink network structure in PMMA containing terbium. Compared with pure PMMA, the PMMA containing terbium has good resistance to heat and solvent, high storage modulus, and strong characteristic fluorescence of terbium ion D-5(4) --> F-7(6), D-5(4) --> F-7(5), D-5(4) --> F-7(4) and D-5(4) --> F-7(3).
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2003年第8期654-657,共4页
Rare Metal Materials and Engineering
基金
福建省教育厅资助项目(JA01026)
