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无皂乳液聚合制备含铕荧光共聚物乳液的研究及其表征
  • ISSN号:1000-3304
  • 期刊名称:高分子学报
  • 时间:0
  • 页码:923-928
  • 分类:O614.338[理学—无机化学;理学—化学]
  • 作者机构:[1]湖北大学材料科学与工程学院,武汉430062, [2]湖北大学功能材料绿色制备与应用教育部重点实验室,武汉430062, [3]湖北大学生命科学学院,武汉430062
  • 相关基金:国家自然科学基金(基金号50973027); 教育部博士点基金(基金号20094208110002)资助项目
  • 相关项目:稀土/聚合物杂化荧光单分散纳米粒子的可控制备及生物探针应用研究
中文摘要:

以丙烯酸(AA)为第一配体、邻菲罗啉(Phen)为第二配体、Eu3+为中心离子,合成了一种可聚合的稀土铕配合物.以配合物单体、甲基丙烯酸甲酯、丙烯酰胺和对苯乙烯磺酸钠为共聚单体,通过无皂乳液聚合的方法,制备了含铕荧光共聚物乳液.采用红外光谱对共聚物的结构进行了表征,并探讨了配合物单体含量对共聚物乳液性能的影响.透射电子显微镜(TEM)和激光光散射粒度仪(PCS)测试结果表明,共聚物乳液形成了相对均一的球状结构,但随着配合物单体含量增加,共聚物微球粒径逐渐增大、分散性变差.采用荧光分光光度计测试了共聚物乳液的荧光性能,在594和619 nm处出现Eu3+的特征发射光谱,且荧光强度随着配合物单体含量增加而增强.

英文摘要:

A novel fluorescent complex was synthesized with Eu3+,acrylic acid(AA) and 1,10-phenanthroline(Phen),using absolute ethyl alcohol as solvent.The chemical structure and fluorescent property of the complex were characterized by elemental analysis,FTIR,1H-NMR spectroscopy and fluorescence spectroscopy.The results indicted that the fluorescent complex Eu(AA)3Phen was successfully prepared and had an excellent fluorescence property.Afterwards,a series of novel fluorescent copolymer emulsions were prepared via soap-free emulsion polymerization,with methyl methacrylate(MMA) and acrylamide(AM) as main monomers,Eu(AA)3Phen as functional monomer and 4-vinylbenzenesulfonic acid sodium salt(NaSS) as polymerizable emulsifier.The structures of the copolymers were characterized by FTIR.The results revealed that copolymerization occurred among MMA,AM,NaSS and Eu(AA)3Phen,and the copolymers were prepared successfully.The influences of the dosages of Eu(AA)3Phen on the stability of copolymer emulsions were studied by the technique of centrifugation,indicating that the emulsions had excellent stability.The average particle size and distribution were measured by photon correlation spectroscopy(PCS),and the result showed that the hydrodynamic diameters and distribution of micelles both increased gradually with the contents of Eu(AA)3Phen.The morphology of latex particles were examined by transmission electron microscopy(TEM),and the images showed that the particles were sphere-shaped,whose size was in good agreement with the measurement results from PCS.In addition,the emulsions were characterized by fluorescence spectroscopy,and it was found that copolymer emulsions exhibited marked luminescence at the wavelength of 594 and 619 nm.More importantly,the fluorescence intensity increased gradually with the contents of Eu(AA)3Phen in the copolymers.

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期刊信息
  • 《高分子学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国化学会 中国科学院化学研究所
  • 主编:张希
  • 地址:北京市海淀区中关村北一街2号
  • 邮编:100190
  • 邮箱:gfzxb@iccas.ac.cn
  • 电话:010-62588927
  • 国际标准刊号:ISSN:1000-3304
  • 国内统一刊号:ISSN:11-1857/O6
  • 邮发代号:2-498
  • 获奖情况:
  • 国家优秀期刊二等奖,中科院优秀期刊二等奖,中国科协优秀期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国科学引文索引(扩展库),英国高分子图书馆,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:19174