Carbosiloxane Bottlebrush Networks for Enhanced Performance and Recyclability.

ABSTRACT: Silicone bottlebrush copolymers and networks derived from cyclic carbosiloxanes are reported and shown to have enhanced properties and recyclability compared with traditional dimethylsiloxane-based materials. The preparation of these materials is enabled by the synthesis of well-defined heterotelechelic macromonomers with Si-H and norbornene chain ends via anionic ring-opening polymerization of the hybrid carbosiloxane monomer 2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane. These novel heterotelechelic α-Si-H/ω-norbornene macromonomers undergo efficient ring-opening metathesis copolymerization to yield functional bottlebrush polymers with accurate control over molecular weight and functional-group density. Si-H groups retained at the ends of side-chains after ring-opening metathesis copo

SUBMITTER: Eom T 

PROVIDER: S-EPMC11603783 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature