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- W2099051921 abstract "It has been found that imino chlorides may be used as cocatalysts for the alkaline polymerization of ε-caprolactam. Addition of an imino chloride shortens the induction period before polymerization, and the polymerization proceeds rapidly at a low temperature below the melting point of the polymer. A mechanism is proposed for the anionic polymerization of ε-caprolactam with alkali metal and an imino chloride. It involves the formation of a reactive N-imidoyl lactam and chain propagation by the stepwise addition of anionic lactams at the end of a molecule. The conditions for the polymerization have been carefully investigated. As the concentration of imino chloride increases, the conversion and relative viscosity increase slightly, but ε-caprolactam is unpolymerizable when equimolar quantities of imino chloride and alkali metal are present, or when there is a higher concentration of imino chloride than of alkali metal." @default.
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- W2099051921 date "1965-11-01" @default.
- W2099051921 modified "2023-09-25" @default.
- W2099051921 title "Anionic polymerization of ω-lactam. Part II. Polymerization of ɛ-caprolactam by alkali metal and imino chlorides" @default.
- W2099051921 doi "https://doi.org/10.1002/pol.1965.100031119" @default.
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