Process for producing pulverulent porous materials

A process for producing a pulverulent organic porous material, the process comprising:

• comminuting an organic xerogel or an organic aerogel, thereby obtaining the pulverulent organic porous material,
• wherein
• the organic xerogel or the organic aerogel is based on polyurea, polyisocyanurate, or both;
• the organic xerogel or the organic aerogel is obtained in a process comprising:
• reacting at least one polyfunctional isocyanate a1 and at least one polyfunctional aromatic amine a2 in a solvent, optionally in the presence of water a3 and optionally in the presence of at least one catalyst a4, and
• removing the solvent to obtain the organic aerogel or the organic xerogel;
• the at least one polyfunctional aromatic amine a2 comprises a structure of formula I:
• R1 and R2 each is independently a hydrogen, or a linear or branched alkyl group comprising from 1 to 6 carbon atoms;
• each of all substituents Q1 to Q5 and Q1′ to Q5′ is independently selected from the group consisting of hydrogen, a primary amino group and a linear or branched alkyl group comprising from 1 to 12 carbon atoms;
• at least one of Q1, Q3 and Q5 is a primary amino group;
• at least one of Q1′, Q3′ and Q5′ is a primary amino group;
• and
• the alkyl group comprising from 1 to 12 carbon atoms in Q1 to Q5 and Q1′ to Q5′ optionally comprises additional functional groups.