Method for producing polymer film

The present invention relates to a method for producing a polymer film, wherein the polymer film has a uniform porosity throughout its polymer phase. The method comprises the steps of dissolving at least one amphiphilic block copolymer in a solvent to form a cast solution of the block copolymer and contacting the extruded solution with a non-solvent to cause phase separation, thereby producing a monolithic asymmetric polymer membrane, the monolithic asymmetric polymer membrane comprising a block of a polar copolymer and a block of a benzocyclobutene copolymer, and the monolithic asymmetric polymer membrane is cross-linked by the application of heat or radiation, resulting in a membrane having uniform porosity throughout the polymer phase. 本发明涉及一种生产聚合物膜的方法，其中所述聚合物膜在其整个聚合物相中具有均匀孔隙率。所述方法包括以下步骤：将至少一种两亲性嵌段共聚物溶解在溶剂中以形成所述嵌段共聚物的浇涂溶液，并使挤出的溶液与非溶剂接触以引起相分离，从而产生整体不对称聚合物膜，其中所述两亲性嵌段共聚物是两亲性二嵌段共聚物，包含极性共聚物的嵌段和苯并环丁烯共聚物的嵌段，并且其中整体不对称聚合物膜通过施加热量或辐射而交联，从而产生在整个聚合物相中具有均匀孔隙率的膜。