Mesoporous Silica/Polymer Composites Utilizing Intelligent Caps onto Mesopore Walls toward Practical Low‐Dielectric Materials

To put a cap on it: Intelligent caps have been added onto mesoporous walls toward innovative low-dielectric materials. Appropriately sized caps at the mesopore entrance is quite effective, which can prevent the penetration of the polymer during the mechanical composite processing and can also provide enough space for smaller-size molecules with lower polarity to access the inner mesopore surface.