Polymerizations of 2-(Trimethylsilyl)ethanesulfonyl-activated aziridines
نویسندگان
چکیده
A novel N-sulfonyl aziridine, N-((2-(trimethylsilyl)ethyl)sulfonyl)-2-methyl-aziridine (SES-MeAz) was synthesized, and its controlled anionic ring-opening polymerization to form poly(SES-MeAz) studied. The desulfonylation of poly(SES-MeAz)s can be achieved under mild conditions, with tetrabutylammonium fluoride (TBAF) polypropylene imine (PPI), although purification the PPI not completely successful. block copolymer p(pTs-MeAz)-b-p(SES-MeAz), (pTs-MeAz = N-para-tosyl-2-methyl-aziridine) prepared by a sequential polymerization. is first example selective removal sulfonyl protecting group from poly(sulfonylazirdine) this formation polysufonylaziridine-block-polypropylene copolymer. Three-armed star-shaped were also successfully synthesized exhibited improved solubility compared linear poly(SES-MeAz)s.
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ژورنال
عنوان ژورنال: European Polymer Journal
سال: 2022
ISSN: ['0014-3057', '1873-1945']
DOI: https://doi.org/10.1016/j.eurpolymj.2022.111135