| 摘要 |
PURPOSE:To enable observation of a material of which the sample reacts, swells or dissolves with a medium by coating the sample surface with an org. high polymer film deposited by evaporation so that the medium does not contact directly the material to be observed. CONSTITUTION:An org. high polymer film (polyparaxylene) deposited by evaporation is a thermoplastic resin and can form a film on a sample surface when deposited by vacuum evaporation. Said film can be formed as thin as 0.2mu and the thickness thereof is freely controllable. The film can be deposited uniformly by evaporation into any concealed part without generating pinholes as far as there is a space therein. The easy observation of a material which is easily dissolved or a material which is easily swollen is made possible as the direct contact of the medium with the sample is prevented by sticking such polymer film to the sample surface. |
