| abstract |
(57) [Summary] [PROBLEMS] To contain a target organic group at a high concentration, to have a small amount of impurity metals, to show a sharp pore distribution, and to be excellent in heat resistance, water resistance, physical stability and the like, In addition, the productivity should be excellent. SOLUTION: (a) The pore volume is 0.5 to 1.6 ml / g, (b) the specific surface area is 300 to 1000 m 2 / g, (C) the mode diameter of the pores (D max ) is less than 20 nm, (D) the total volume of pores having a diameter within the range of D max ± 20% is 40% or more of the total volume of all pores, (e) amorphous, and (f) total content of metal impurities Rate is 500 ppm or less, and (g) the proportion of silicon atoms directly bonded to carbon atoms among all silicon atoms is 0.1% or more. |