Modification of zeolite surfaces by Grignard reagent

摘要

New microporous hybrid organic/inorganic materials were obtained by modification of zeolites using chlori-nation of their surface, followed by treatment with a Grignard reagent. Loading of butyl groups and retained crys-tallinity of ZSM-5 type zeolites was higher than for zeolites Y. In contrast to zeolites Y, the lattice parameters of zeolites ZSM-5 increased after surface modification. The obtained hybrid materials on the basis of high-silica zeolites possess a high degree of crystallinity at increased hydrophobicity.