| 摘要 |
FIELD: chemistry.SUBSTANCE: invention deals with porous material. Described is porous material, containing the following components in modified form: (a1) at least one multifunctional isocyanate and (a2) at least one multifunctional substituted aromatic amine (a2-s) in accordance with general formula:, given below, and optionally at least one additional multifunctional amine, which is different from amines (a2-s) in accordance with general formula (I), selected from the group, consisting of multifunctional aliphatic amines (a2-a) and multifunctional aromatic amines (a2-u), and Rand Rcan be similar or different, and they are independently on each other selected from the group, which is formed by hydrogen and linear or branched alkyl groups with 1-6 carbon atoms, and all substituents Q-Qand Q-Qare similar or different, and they are independently on each other selected from the group, formed by hydrogen, primary amino group and linear or branched alkyl group with 1012 carbon atoms, and alkyl group can have additional functional groups on condition that compound in accordance with general formula (I) includes at least two primary amino groups, and at least one of Q, Qand Qrepresents primary amino group, and at least one of Q, Qand Qrepresents primary amino group, and Q, Q, Qand Qare selected in such a way that compound in accordance with general formula (I) contains at least one linear or branched alkyl group, which can have additional functional groups with 1-12 carbon atoms in ?-position to at least one primary amino group bound with aromatic nucleus. Described is method of manufacturing porous materials, including: (a) preparation of component (a1) and separately from it component (a2), in each case in solvent (C); (b) reaction of components (a1) and (a2) in presence of solvent (C) with formation of gel and (c) drying gel, obtained at the previous stage. Also described is application of porous materials as insulating material or for vacuum insulating panels.EFFECT: obtaining porous materials, characterised by reduced density with comparable porosity.15 cl, 6 ex |
