A series of hybrid microporous polymers (HMPs) were prepared through Friedel-Crafts reaction with double-decker-shaped silsesquioxane as the building block. The ratio between the monomer and the crosslinker has significant influence on the surface area and porous morphology. A maximum BET surface area of 923 m(2) g(-1) and high gas storage capacity (CO2:10.4 wt%, 273 K/1.0 bar; H-2: 0.95 wt% 77 K/1.0 bar) were achieved. The obtained HMPs have high thermal stability due to the introduction of Si-O bonds. (C) 2016 Elsevier Ltd. All rights reserved.