Highly Ordered And Solvent Resisitance Hoenycomb Film Prepared By Static Method

Well-ordered films with micrometer-sized pores have attracted much attention due to the wide range of potential applications, such as biology, sensors, catalysis and optical elementHoneycomb film have attracted much attention due to its simple> fast、efficient cheap preparation condition. The preparation process of Honeycomb film is a dynamic non-equilibriμm processes, thus parameters of experiment is complex such as type of organic solvent and polymer type, concentration of the polymer solution, hμmidity and so on.In order to prepare hghly ordered film, amphiphilic block polymer are widely used in the preparation of Honeycomb. Howere,the relationship between the ratio of the hydrophilic and hydrophobic segments in the hole chain and pore morphology is overlooked by people. In this work, we synthesized a series of amphiphilic block copolymers with different chemical compositions by atom transfer radical polymerization (ATRP).,and discuss its influence on the pore size under different condition such as hμmidity, concentration and the added amount of solution. Finally, we prepared a solvent resistance porous film by photochemical cross-linking at the appropriate time.In this paper, we used field emission scanning electron microscopy to study Honeycomb film.We found that the organic solvent play a key role on formation of porous structure.Howere,the right hμmidity、the right concentration of the polymer solution, the right polymer solution and the right amount of hydrophilic/hydrophobic segment ratio is a necessary condition for the formation of regμLar pore structure. The lower the concentration of the polymer solution and hμmidity,the more the amount of the polymer solution, the longer hydrophilic segments is, the larger pore will form.