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1,1′‐Carbonyldiimidazole (CDI) provides a platform to generate high molecular weight polyurethanes from industrially relevant diols and diamines. CDI, which is described in the literature for its use in amidation and functionalization reactions, enables the production of well‐defined and stable polyurethane precursors, thus eliminating the need for isocyanates. Herein, the functionalization of 1,4‐butanediol...
The use of isopropanol (IPA) as the reaction solvent for the preparation of high molecular weight segmented polyether-urea copolymers based on cycloaliphatic diisocyanates was investigated. Reactivity of IPA with bis(4-isocyanatohexyl)methane (HMDI) and isophorone diisocyanate (IPDI) was studied between 0 and 40 o C using in-situ FTIR spectroscopy. HMDI, which has secondary isocyanate groups,...
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