摘要
以空心球表面负载的叔丁基过氧化氢为引发剂,通过反向原子转移自由基聚合制备了空心球-聚甲基丙烯酸甲酯杂化材料,以此为引发剂,以含有甲基丙烯酸甲酯的铽配合物为第二单体,通过原子转移自由基聚合制备了空心球-g-PMMA-b-Tb杂化材料,并用FT-IR、GPC、TG和荧光光谱等对产物进行了测试与分析。结果表明,PMMA在空心球表面的接枝率约为8%;溶液中形成的PMMA的-Mw为28800,分子量分布指数(PDI)为1.2;杂化材料在489 nm,545 nm,583 nm,621 nm左右出现了四组发射峰,分属于Tb3+的5D4→7F6、5D4→7F5、5D4→7F4和5D4→7F3跃迁;铽配合物已接枝到空心球表面,生成了具有发光性能的杂化材料。
The hollow sphere-g-poly（methyl methacrylate）（hollow sphere-g-PMMA） hybrid material was prepared via reverse atom transfer radical polymerization（RATRP） using hollow sphere supported peroxides as initiator.After that,hollow sphereg-PMMA-Tb hybrid material was fabricated by atom transfer radical polymerization（ATRP） using hollow sphere-g-PMMA as macro-initiator and Tb complex（include MMA） as the second monomer.The sample was characterized by FT-IR,GPC,TG and luminescence spectroscopy respectively.The results show that the graft ratio of PMMA on hollow sphere surface is about 8%.The M-w of PMMA formed in solution is 28800 and the polydispersity index（PDI） is 1.2.In emission spectrum there are four characteristic fluorescence emission bands at 489 nm,545 nm,583 nm and 621 nm,attributable to 5D4→7F6,5D4→7F5,5D4→7F4 and 5D4→7F3 electron transition of Tb3＋,respectively.The Tb complex has grafted onto the hollow sphere surface,resulting in optical-functional hybrid materials.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2011年第1期158-160,165,共4页
Polymer Materials Science & Engineering
基金
聊城大学大学生科技文化创新基金资助项目(SRT08007CL2)
山东省高等学校科技计划项目(J09LD56)
