Abstract
1,3-Bis(3-ammonium-propyl)tetramethyldisiloxane carbamate, APCO, was unexpected formed in a solution containing the proper diamine besides 4-imidazolecarboxaldehyde in methanol solution maintained for long time at room temperature. The compound separated as colourless crystalline one was investigated by single-crystal X-ray diffraction and spectral (FT-IR, 1H-NMR) analysis. Due to the co-existence of both hydrophobic bis(propyl)tetramethyldisiloxane fragment and telechelic hydrophilic groups, the obtained compound shows surface activity proved by tensiometry. Self-assembly in solution was emphasized by dynamic light scattering (DLS) and confirmed by atomic force microscopy (AFM) images taken on the spin coated films, both revealing closed values for size of the micelles (few hundred nanometers). The behavior of the carbamate in wet atmosphere was studied by water vapor sorption analysis in dynamic regime (DVS). Thermal analysis revealed almost a complete decomposition of the compound occurring in a two-steps process.
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