A method for producing a porous material exhibiting temporal stability includes the step of forming a primary material containing a matrix precursor for forming the matrix of the porous material and a porogen for forming pores; the step of removing the porogen from the primary material to form reactive sites exposed at the surface of the matrix; and the step of reacting the reactive sites with an inactivation promoter to inactivate the reactive sites. For a porous material hard to shrink even after heat treatment, the method includes the step of forming a primary material including a matrix formed of a matrix precursor and a pore-forming portions formed of a porogen; the step of supplying an additional matrix precursor for growing the matrix, dissolved in a supercritical or subcritical fluid; and the step of removing the porogen from the pore-forming portions.
一种生产具有时间稳定性的多孔材料的方法包括以下步骤:形成包含用于形成多孔材料基体的基体前体和用于形成孔隙的成孔剂的初级材料;从初级材料中去除成孔剂以形成暴露在基体表面的反应位点;以及使反应位点与失活
促进剂反应以使反应位点失活。对于即使在热处理后也难以收缩的多孔材料,该方法包括形成主材料的步骤,主材料包括由基质前体形成的基质和由成孔剂形成的成孔部分;提供溶解在超临界或亚临界流体中用于生长基质的额外基质前体的步骤;以及从成孔部分去除成孔剂的步骤。