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The aim is to synthesize lignin-based polycarbonate polyols for improved flexible polyurethane foam applications.

February 2, 2026ChemSusChemOpen Access

Synthesis and Characterization of Lignin‐Based Polycarbonate Polyols for Flexible Polyurethane Foam Application

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Synthesizes lignin-based polyols to enhance mechanical properties and sustainability in foams, suggesting a renewable alternative.

The aim is to synthesize lignin-based polycarbonate polyols for improved flexible polyurethane foam applications.
Synthesis of lignin-based polycarbonate polyols via transesterification with dimethyl carbonate.
Characterization using proton, carbon, phosphorus, and 2D nuclear magnetic resonance.
Formulation of foams with up to 60% replacement of petroleum-based polyols with lignin polyol.
Lignin polyols showed hydroxyl values from 111 to 179 mg KOH/g and viscosities of 12,000–26,000 mPa·s.
Formulated foams displayed enhanced tensile strength and load-bearing capacity compared to traditional foams.
Developed foams exhibited improved thermal stability, shock absorption, and partial biodegradability.

Acquah et al. (2026) studied this question.

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