TY  - Journal Article
AU  - Perez‐Arce, Jonatan
AU  - Serrano, Angel
AU  - Dauvergne, Jean‐Luc
AU  - Centeno‐Pedrazo, Ander
AU  - Prieto‐Fernandez, Soraya
AU  - Palomo Del Barrio, Elena
AU  - Garcia‐Suarez, Eduardo J.
TI  - Sustainable lignin‐based polyols as promising thermal energy storage materials
PY  - 2021
PB  - Wiley online library
AB  - Six lignin-based polyols (LBPs) have been prepared by cationic ring opening polymerization of an oxirane in the presence of an organosolv lignin in tetrahydrofuran (THF) as reaction media and co-monomer. The prepared LBPs have been characterized and tested for the first time as phase change materials (PCMs) for thermal energy storage (TES) at low temperature. It was found a strong influence of the LBPs composition on their performance to storage thermal energy. Thus, LBPs with higher THF wt% content and lower oxirane/THF mass ratio exhibit the highest latent heats. Furthermore, a clear inversely proportional trend between the oxirane/THF mass ratio and the melting temperatures of the prepared LBPs was noticed. Among the prepared LBPs, the highest obtained latent heat was 53.7 J/g demonstrating the potential application of lignin as feedstock for PCMs preparation. To the best of our knowledge, this is the first time that a biomass derived PCM based on lignin has been studied and considered for TES applications at low temperature. LBPs show energetic solid–liquid transitions that point out their promising potential as bio-PCMs. This work paves the way to introduce new bio-based PCMs from lignin in TES systems, for example, in a more sustainable construction sector.
SN  - 0021-8995
UR  - http://hdl.handle.net/11556/1173
DX  - 10.1002/app.51356
ER  -