R. Ryoo et Jm. Kim, STRUCTURAL ORDER IN MCM-41 CONTROLLED BY SHIFTING SILICATE POLYMERIZATION EQUILIBRIUM, Journal of the Chemical Society, Chemical Communications, (7), 1995, pp. 711-712
Powder X-ray diffraction, Si-29 and Xe-129 NMR spectroscopy of MCM-41
show that the long-range structural order and textural uniformity of t
he mesoporous molecular sieve are markedly improved due to a shift in
the reaction equilibrium when acetic acid is repeatedly added during t
he conversion of sodium silicate and NMe(3)(C16H33)Cl to a MCM-41 phas
e.