SARDON, Haritz; PASCUAL, Ana; MECERREYES, David; TATON, Daniel; CRAMAIL, Henri; HEDRICK, James L.

doi:10.1021/acs.macromol.5b00384

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SARDON, Haritz
Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT

PASCUAL, Ana
Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT

MECERREYES, David
Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT

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Macromolecules. 2015, vol. 48, n° 10, p. 3153-3165

American Chemical Society

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Organocatalysis has become an invaluable tool for polymer synthesis, and its utility has been demonstrated in ring-opening, anionic, zwitterionic, and group-transfer polymerizations. Despite this, the use of organocatalysis in other polymerization reactions such as step-growth polymerizations remains underexplored, relative to more traditional metal-based polymerizations. Recently, the use of organic bases such as guanidines, amidines, N-heterocyclic carbenes, and organic "strong or super-strong" Bronsted acids to catalyze the synthesis of metal-free polyurethanes has shown to be competitive to commercially widely used dibutyltin dilaurate and dibutyltin diacetate catalysts. This Perspective article highlights recent advances in organocatalyst design for isocyanate-based polyurethane synthesis with the aim of comparing the activity and selectivity of each of the new catalytic reactions to each other and the traditional metal-based catalysts. The article also draws attention to new trends in isocyanate-free polyurethane synthesis and the key role that organocatalysis is playing in these innovative polymerization processes.< Leer menos

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6-MEMBERED CYCLIC CARBONATES

ALIPHATIC POLYURETHANES

THERMOPLASTIC POLYURETHANES

MOLECULAR-ORBITAL METHODS

NON-ISOCYANATE POLYURETHANES

GAUSSIAN-TYPE BASIS

CATALYST-FREE SYNTHESIS

RING-OPENING POLYMERIZATION

N-HETEROCYCLIC CARBENES

SPECTROPHOTOMETRIC BASICITY SCALE

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Synthesis of Polyurethanes Using Organocatalysis: A Perspective

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