A new route to achieve the side-chain-type sulfone-containing polysiloxanes via sulfide oxidation-induced cleavage and rearrangement of Si–O–Si bonds with fine selectivity toward cyclosiloxanes†
Abstract
A novel approach, with high selectivity, to obtain novel polysiloxanes containing sulfone groups from sulfur-bridged cyclosiloxane monomers was carried out without the use of catalysts; instead, sulfur oxidation was performed. The sulfide oxidation reaction can induce ring-opening polymerization of the cyclosiloxanes through cleavage and rearrangement of Si–O–Si bonds. Our findings present novel insights to synthesize new polysiloxanes.
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