摘要
采用反相悬浮聚合法合成了甲基丙烯酸(MAA)含量不同的聚丙烯酰胺-甲基丙烯酸[P(AM-co-MAA)]微凝胶,并以其作为模板,通过外源沉积法制备了一系列微米级,表面具有纳米级颗粒堆积的P(AM-co-MAA)/ZnO有机-无机复合微球。复合微球的表面结构与微凝胶的组成和ZnO的沉积量有关。详细考察了MAA含量,Zn(Ac)2浓度,NaOH醇溶液的浓度对ZnO负载量的影响。利用扫描电子显微镜(SEM),能谱分析仪(EDX),X衍射分析仪(XRD),傅里叶红外分析仪(FT-IR)等对复合微球的形貌、组成进行了表征。
Acrylamide（AM） and methylacrylic acid （MAA） copolymer microspheres were prepared by a reverse suspension polymerization technique.Several kinds of P（AM-co-MAA）/ZnO composite microspheres with different surface morphologies were prepared by using P（AM-co-MAA） microgels as template.It was investigated that the amount of MAA and the concentration of Zn（Ac）2,the concentration of NaOH ethanol solution effect on the surface morphology of the P（AM-co-MAA）/ZnO composite microspheres in detail. The morphology and composition of the P（AM-co-MAA）/ZnO composite microspheres were characterized by scanning electron microscopy and accessory （SEM and EDX）, X-ray diffraction （XRD） and Fourier transform infrared spectroscopy （FT-IR）. The surface structures of the composite microspheres could be tailored to a certain extent by varying the ratio of the two monomer content in the template （microgels） and the amount of ZnO deposited.
出处
《光谱实验室》
CAS
CSCD
北大核心
2009年第4期1008-1014,共7页
Chinese Journal of Spectroscopy Laboratory
基金
陕西省教育厅项目(08JK419)
西安市科技厅计划项目(CXY08004(3)
关键词
反相悬浮聚合法
模板法
复合微球
ZNO
微凝胶
Reverse Suspension Polymerization Method
Template Method
Composite Microspheres
Zinc Oxide
Microgels
