Comb-Like Polymethylsiloxanes. Synthesis, Structure and Properties

Comb-like polymethylsiloxanes consisting of a silsesquioxane backbone and dimethylsiloxane side chains were synthesized by means of the “grafting to” method using a linear polyfunctional matrix [SiMe(ONa)O] n and monofunctional oligomers (CH 3 ) 3 Si[OSi(CH 3 ) 2 ] n OCOCH 3 . The effects of architecture of the synthesized methylsiloxane polymers on their physicochemical properties, rheology, and behavior at the air–water interface were studied and compared with those for the linear analogue – polydimethylsiloxane.