Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Май 13, 2025
In this study, a new synthetic method for structurally controlled polyethyleneketones, photodegradable polyethylene-like polymer, has been developed. Telechelic Zn-polyethylene was prepared from α,ω-diene, diethylzinc, and ethylene, which allowed to react with diacid chlorides give polyethyleneketones defined spacing between the neighboring ketone functionalities. The photodegradation of these polymers under UV light demonstrated degradation rate dependency on spacer units carbonyl groups. ones longer-spaced ketones (6-18 carbons) showed efficient degradation, while shorter-spaced (3-5 exhibited slower process. Structural analysis by solid-state FT-IR DSC suggested existence carbonyl-carbonyl interactions in polymers, are presumed interfere via Norrish reaction.
Язык: Английский