A novel trisiloxane surfactant, butynediol monopropoxylate-modified trisiloxane (BMT), was synthesized by hydrosilylation. Structure characterizations of the BMT were analyzed by Fourier transform infrared spectroscopy and 1H, 13C nuclear magnetic resonance spectroscopy. The surface activity and aggregation behavior of BMT in aqueous solutions were investigated through the measurements of surface tension, dynamic light scattering (DLS), and transmission electron microscopy (TEM). The results showed that the critical aggregation concentration (CAC) and surface tension at CAC of the prepared surfactant in aqueous solutions were 1.76 × 10−4 mol/L and 26.4 mN/m, respectively. DLS measurements and TEM images revealed the existence of spherical aggregates with diameters in the range of 30–650 nm.
Research on Chemical Intermediates – Springer Journals
Published: Feb 11, 2014
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