聚邻甲基丙烯酰胺基苯甲酸/纳米ZnO复合物的制备及其荧光性能研究  

Preparation of Composite of Poly(o-Methyl-Acrylamide-Benzoic Acid)/ZnO Nanoparticles and Its Property of Fluorescence

作　　者：丁春花[1] 徐庆锋[1] 路建美[1] 

机构地区：[1]苏州大学化学化工学院江苏省有机合成重点实验室,江苏苏州215123

出　　处：《光谱学与光谱分析》2006年第11期2072-2075,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(20571054);江苏省高技术研究项目(BK2005021)资助

摘　　要：利用原子转移自由基聚合(ATRP)法对合成的新单体邻甲基丙烯酰胺基苯甲酸(o-MAABA)进行聚合,通过核磁验证得到符合预先设计的、结构明确的聚合物,聚合物分子量为7900;将纳米ZnO引入到该聚合物P(o-MAABA)中,得到聚合物/纳米ZnO粒子复合物。用红外光谱和差热分析方法对聚合物和复合物进行了表征,并采用透射电镜(TEM)观察了复合物粒子的形貌。红外光谱表明纳米ZnO确实被引入到聚合物链中,并且与聚合物中的某些官能团发生了一定的相互作用;差热分析表明P(o-MAABA)/纳米ZnO复合物的热稳定性较原来聚合物P(o-MAABA)有所提高;TEM观察表明复合物粒子基本为球状,表面较为光滑。P(o-MAABA)/纳米ZnO复合物表现出特殊的荧光性能,与聚合物相比荧光光谱发生红移,并且复合物溶解性较好,能成膜,可望在发光材料方面得到应用。The preparation of P（o-MAABA） via ATRP and the composite of P（o-MAABA）/ZnO nanopartieles were described. ^1HNMR, IR, TA and TEM were utilized to confirm the results. ^1H NMR indicates that the structure of the P（o-MAABA） was definite, and the molecule weight of P（o-MAABA） was 7900. IR shows that ZnO nanoparticles were introduced to P（o-MAA- BA） and were interacted with the reactive groups of polymer. TA shows that the heat stability of P（o-MAABA））/ZnO compos ire increased greatly. TEM photo demonstrates that the composite was spherical and the surface was smooth. The P（o-MAA BA）/ZnO composite exhibits particular fluorescence property, and the emission spectrum of the P（o-MAABA）/ZnO composite red shifts 25nm compared to the polymer. In addition, the composite features good solubility and film formability, and may become a new optical material.

关 键 词：邻甲基丙烯酰胺基苯甲酸 纳米ZnO荧光 成膜 

分 类 号：TQ352[化学工程]