Synthesis and Structural Insight into poly(dimethylsiloxane)-b-poly(2-vinylpyridine) Copolymers.

ABSTRACT: In this study, the use of anionic polymerization for the synthesis of living poly(dimethylsiloxane) or PDMS-Li⁺, as well as poly(2-vinylpyridine) or P2VP-Li⁺ homopolymers, and the subsequent use of chlorosilane chemistry in order for the two blocks to be covalently joined leading to PDMS-b-P2VP copolymers is proposed. High vacuum manipulations enabled the synthesis of well-defined materials with different molecular weights (Μ¯n, from 9.8 to 36.0 kg/mol) and volume fraction ratios (φ, from 0.15 to 0.67). The Μ¯n values, dispersity indices, and composition were determined through membrane/vapor pressure osmometry (MO/VPO), size exclusion chromatography (SEC), and proton nuclear magnetic resonance spectroscopy (¹H NMR), respectively, while the thermal t

SUBMITTER: Manesi GM 

PROVIDER: S-EPMC10648597 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature