例文
- To prepare the functionally gradient materials ( fgm ) of polysilane - polyacrylate , the method of solution preparation was performed . based on the results of the back - scattered electron images and linear scanning of the polysilane - polyacrylate film ' s cross section , the dependence of polysilane - polyacrylate film ' s structure on molecules of polysilane and polyacrylate , pmma / pmts feed ratio and component concentration were investigated