Abstract
We report an organocatalytic aziridine-based multicomponent polymerization approach toward poly(sulfonamide urethane)s. The polymerization was carried out using bis(N-sulfonyl aziridine)s, diols, and tosyl isocyanate as the monomers and MTBD as the organocatalyst. Excellent yields (81–98%) were obtained for the desired step-growth polymerized products. The linear polymer structure was achieved, with no branching and cross-linking. Optically active poly(sulfonamide urethane)s were synthesized from chiral bis(N-sulfonyl aziridine) monomers. Thermal analysis of the poly(sulfonamide urethane)s revealed a decomposition temperature (Td,5%) up to 284.4 °C at 5% weight loss. DSC analysis indicated that the glass transition temperature (Tg) ranged from 64.9 to 99.5 °C. Such results are anticipated to accelerate the development of the aziridine-based synthetic approach toward functional polymeric materials.
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