Thermogravimetry of alpha, omega-diaminoalkanes used in synthesizing zsm-5

Abstract

Thermogravimetry was determined on a series of alpha, omega-diaminoalkanes, in which the alkane chain contained from three to eight carbon atoms that were located in zeolite ZSM-5 during synthesis. Of the series, 1, 6-diaminohexane functions best as a template, and this was attributed to its having a size that most neatly fits into the zeolite structure; the other molecules were either too small or too large. It was found that the channels were not completely filled and, on average, there were 5.3 diaminoalkane molecules per unit cell of the zeolite. Further, the organic compound within the zeolite had undergone partial deamination during synthesis.