通过对均苯四甲酸二酐-4,4’-二胺基二苯醚（PMDA-4,4’-ODA）型聚酰亚胺（PI）成品薄膜的表层水解处理、并在硫酸镍水溶液中实施离子交换以及随后的乙二醇热还原的方法,制备了聚酰亚胺/镍纳米复合薄膜。通过X射线衍射仪（XRD）、傅立叶变换红外光谱仪（FT-IR）,透射电子显微镜（TEM）等方法研究了复合薄膜结构的变化,结果表明,经乙二醇热还原后,水解后的聚酰亚胺表层又重新形成亚胺环结构,并在其内部形成了均匀分散的具有面心立方晶型（FCC）的金属镍粒子,直径约为100 nm~200 nm。
Nickel （Ni） nanoparticles embeded in the surfaces of flexible polyimide （PI） matrix have been prepared through alkaline hydrolysis, subsequent ion-exchange in aqueous nickel sulfate solution and final thermal reduction using ethylene glycol as a reductant. The composite films were characterized by X-ray diffraction（XRD）, Fourier transform infrared spectrometer （FT-IR） and transmission electron microscope （TEM）. The results show that face- centered cubic crystalline nickel nanoparticles with sizes of 100 nm-200 nm uniformly dispersed in the surfaces of PI films. The spherical nickel nanoparticles show face-centered cubic lattice structure. And after glycol hot reduction, the surface layer of polyamic acid reformed PI.
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