Effect of organic group on modified MSU-X silicate

Organo - functionalized MSU - X [R - MSU - X, R = CH3, C6H5, CH2 = CH and N H2CONH(CH2)(3)] silicates were prepared by one - pot synthesis methodology, using an improved procedure developed for synthesizing MSU - X. The incorp orated organic groups were characterized by XRD, FT - IR, C-13, Si-29 CP MA S NMR, HRTEM, SEM, TG, N-2 physisorption techniques, bulk element analysis and small angle X ray scattering (SAXS). The surface morphology and textura l properties of such materials varied with R groups in organosiloxanes prec ursor and their content in the pore. The effects of the organic groups on t he modified MSU - 1 were investigated carefully. SAXS results show that the organic groups appeared to be uniformly distributed in R - MSU - X and for m interfacial layers that led to the scattering of the pore distortion and gave a negative deviation from Porod's law. The average thickness of the in terfacial layer was further obtained by analyzing this deviation.