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采用反相悬浮聚合法合成的P(AM-co-MAA)水凝胶为模板,用Zn(Ac)2溶胀后,加入水合肼和NaOH溶液,通过两相界面反应,使ZnO沉积于微球表面,制得P(AM-co-MAA)/ZnO有机-无机复合微球.我们考察了制备方法、超声反应时间、水合肼浓度对复合微球表面负载ZnO量的影响.通过电镜扫描(SEM)、傅立叶红外分析(FT-IR)、热重分析(TG)等方法对微球表面形貌和无机沉积物ZnO的相对含量进行了表征.结果表明,采用Zn(Ac)2浸渍微球和水合肼在超声条件下反应,得到表面出现均匀裂痕的P(AM-co-MAA)/ZnO复合微球.
P (AM-co-MAA) hydrogel synthesized by reversed-phase suspension polymerization was used as template. After swelling with Zn (Ac) 2, hydrazine hydrate and NaOH solution were added to react with each other to deposit ZnO on the microspheres The effect of preparation method, ultrasonic reaction time and hydrazine hydrate concentration on the amount of ZnO supported on the surface of composite microspheres was investigated by scanning electron microscopy (SEM) ), Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TG) were used to characterize the surface morphology of the microspheres and the relative content of the inorganic deposit ZnO. The results showed that the microspheres impregnated with Zn (Ac) Hydrazine hydrate reacted under ultrasonic conditions to obtain P (AM-co-MAA) / ZnO composite microspheres with uniform cracks on the surface.