4.7 Article

Synthesis of Poly(thioester sulfonamide)s via the Ring-Opening Copolymerization of Cyclic Thioanhydride with N-Sulfonyl Aziridine Using Mild Phosphazene Base

Journal

MACROMOLECULAR RAPID COMMUNICATIONS
Volume 43, Issue 17, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202200140

Keywords

aziridine; cyclic thioanhydride; poly(thioester amide)s; ring-opening copolymerization

Funding

  1. National Natural Science Foundation of China [22131010, 22071232, 22101275, 52073269, 52131305]
  2. Fundamental Research Funds for the Central Universities [WK3450000005]

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In this study, a ring-opening copolymerization method is reported to synthesize poly(thioester sulfonamide)s with highly alternative structures, high yields, and controlled molecular weights. This method combines the advantages of thioesters and amides, and can also be used to produce novel block copolymers.
Providing access to diverse polymer structures is highly desirable, which helps to explore new polymer materials. Poly(thioester sulfonamide)s, combining both the advantages of thioesters and amides, however, are rarely available in polymer chemistry. Here, the ring-opening copolymerization (ROCOP) of cyclic thioanhydride with N-sulfonyl aziridine using mild phosphazene base, resulting in well-defined poly(thioester sulfonamide)s with highly alternative structures, high yields, and controlled molecular weights, is reported. Additionally, benefiting from the mild catalytic process, this ROCOP can be combined with ROCOP of N-sulfonyl aziridines with cyclic anhydrides to produce novel block copolymers.

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