芳羧酸功能化的聚砜与Tb(III)形成的高分子-稀土配合物的结构与荧光发射性能

引用本文: 张瑞霞, 高保娇, 位霄鹏. 芳羧酸功能化的聚砜与Tb(III)形成的高分子-稀土配合物的结构与荧光发射性能[J]. 物理化学学报, 2012, 28(01): 223-231. doi: 10.3866/PKU.WHXB201111171 shu

Citation: ZHANG Rui-Xia, GAO Bao-Jiao, WEI Xiao-Peng. Structure and Florescence Emission Properties of a Polymer-Rare Earth Complex Composed of Aryl Carboxylic Acid-Functionalized Polysulfone and Tb(III)[J]. Acta Physico-Chimica Sinica, 2012, 28(01): 223-231. doi: 10.3866/PKU.WHXB201111171 shu

芳羧酸功能化的聚砜与Tb(III)形成的高分子-稀土配合物的结构与荧光发射性能

基金项目:
山西省自然科学基金(201002100843)资助项目 (201002100843)

摘要: 通过大分子反应将苯甲酸(BA)键合在聚砜(PSF)侧链, 制得芳羧酸功能化的聚砜(PSFBA). 以PSFBA为大分子配基, 以邻菲啰啉(Phen)为小分子配体, 与Tb(III)配位, 分别制备了二元配合物PSFBA-Tb(III)与三元配合物PSFBA-Tb(III)-Phen, 采用傅里叶变换红外(FTIR)光谱和紫外(UV)吸收光谱对配合物进行了表征, 深入研究了配合物(溶液与薄膜)的荧光发射性能及热稳定性与结构的关系. 研究结果表明, 以PSFBA为大分子配基所形成的高分子-稀土配合物, 均能发射出很强的Tb(III)特征荧光, 即键合在PSFBA侧链的配基BA能有效地敏化Tb(III)的荧光发射. 二元配合物PSFBA-Tb(III)的表观饱和配位数为10, 即当二元配合物具有PSF-(BA)₅-Tb(III)的结构时, BA 对Tb(III)的配位表观上达到饱和, 此时二元配合物具有最强的荧光发射. 按n(Phen):n(Tb(III))=1 的比例将Phen 加入二元配合物PSF-(BA)₅-Tb(III)溶液中进行补充配位, 所制备的三元配合物PSF-(BA)₅-Tb(III)-(Phen)₁与惯用比例的三元配合物PSF-(BA)₁-Tb(III)-(Phen)₃或PSF-(BA)₁-Tb(III)-(Phen)₂相比, 不仅荧光发射强度高, 而且热稳定性能好, 是一种高性能的场致发光材料.

关键词:

English

Structure and Florescence Emission Properties of a Polymer-Rare Earth Complex Composed of Aryl Carboxylic Acid-Functionalized Polysulfone and Tb(III)

1.
Department of Chemical Engineering, North University of China, Taiyuan 030051, P. R. China
Received Date: 09 October 2011
Available Online: 29 December 2011
Fund Project:
山西省自然科学基金(201002100843)资助项目

Abstract: Benzoic acid (BA) was bonded to the side chains of polysulfone (PSF) via a polymer reaction, giving aryl carboxylic acid-functionalized polysulfone (PSFBA). The binary complex PSFBA-Tb(III) and ternary complex PSFBA-Tb(III)-phenanthroline (Phen) were prepared by the coordination of Tb(III) to PSFBA using PSFBA as a macromolecular ligand and Phen as a smaller ligand. The chemical structures of the complexes were characterized by Fourier transform infrared (FTIR) and UV absorption spectroscopies. The relationships between the structure and properties, including the fluorescence emission properties, of the complexes in solution and films were investigated, as well as their thermal stability. All of the polymerrare earth complexes containing PSFBA exhibited very strong characteristic fluorescence emission from Tb(III), namely, BA bonded to the side chains of PSFBA can effectively sensitize Tb(III). The apparent saturated coordination number of PSFBA-Tb(III) is 10, which implies that the coordination of BA to Tb(III) reaches saturation and maximum fluorescence is achieved for the complex PSF-(BA)₅-Tb(III). The ternary complex PSF-(BA)₅-Tb(III)-(Phen)₁, which is prepared by adding Phen to a solution of PSF-(BA)₅-Tb(III), possesses the strongest fluorescence emission and excellent thermal stability compared with ternary complexes PSF-(BA)₁-Tb(III)-(Phen)₃ and PSF-(BA)₁-Tb(III)-(Phen)₂, which were prepared using the conventional ratios of reagents.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

芳羧酸功能化的聚砜与Tb(III)形成的高分子-稀土配合物的结构与荧光发射性能

English

Structure and Florescence Emission Properties of a Polymer-Rare Earth Complex Composed of Aryl Carboxylic Acid-Functionalized Polysulfone and Tb(III)

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

芳羧酸功能化的聚砜与Tb(III)形成的高分子-稀土配合物的结构与荧光发射性能

English

Structure and Florescence Emission Properties of a Polymer-Rare Earth Complex Composed of Aryl Carboxylic Acid-Functionalized Polysulfone and Tb(III)

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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