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Updated: Jun 5, 2026

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Despolimerización selectiva de poliuretanos a N,N′-dimetilaminas boriladas mediada por el complejo de lantano

Zheyu Zhao¹, Yansong Ma¹, Jue Chen²

¹School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China.

Inorganic chemistry

|February 13, 2026

Abstract:

The extensive use of polyurethanes (PUs) has led to substantial waste accumulation and associated environmental concerns. Chemical depolymerization represents an efficient strategy to address this issue yet remains underexplored. This study introduces a catalytic depolymerization of polyurethanes into borylated N-methylamine derivatives using a La(CH₂C₆H₄NMe₂-o)₃@SBA-15₇₀₀/HBpin heterogeneous rare-earth metal catalyst system. This approach not only provides access to valuable N,N'-dimethyldiamine derivatives but also demonstrates good catalyst recyclability under mild conditions, offering a promising pathway for sustainable upcycling of PU waste.

Palabras clave:

despolimerización poliuretano catalizador lantano N-metilamina residuos valorización química verde

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