| 摘要 |
<p>Porous materials having a dual surface are disclosed. Also disclosed is a method for their preparation. An example of such a material is a silica gel reacted with a reactive silane intermediate such as (CH3)2Si=O and then, with a reactive silane such as <IMAGE> to give a dual treated material having -((CH3)2SiO)xH on the exterior surface and <IMAGE> on the interior surface of the pores.</p> |
