Synthesis, characterization and physicochemical properties of glycosyl-modified polysiloxane

Four glycosyl-modified polyorganosiloxane surfactants exhibit relatively low CAC values of 0.062-0.111 mmol·L−1 and low γCAC values of 25.22-29.20 mN·m−1. While conventional glycosyl-modified carbon‑carbon amphiphilic copolymers have higher CAC and γCAC (above 55 mN·m−1). Different with conventional lower molecular weight surfactants, GPSO surfactants have substantially larger molecular structure and high molecular weight. More time is required to attain adsorption equilibrium at the air-water interface. Dynamic surface tension results indicate that GHL@Si have good diffusion ability than that of GL@Si.268