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Abstract

Producing materials from renewable resources is urgent in the current society due to the increment of oil price, environmental concern, and population growth. Lignocellulosic biomass is one of the most abundant renewable resources on earth, and it is composed of cellulose, hemicellulose, and lignin. This third component comprises 15–30% of biomass and contains an aromatic structure, which is of great interest in the production of phenolic compounds, materials, fuels, and polymers among others. The use of lignin and its derivatives as raw material for polyurethane manufacture has attracted a great deal of attention in recent years. It can be employed as an environmentally friendly substitute of the non-renewable compounds, derived from oil, typically used in the formulation of polyurethanes. Lignin can be directly used without any chemical treatment, but only in small amounts due to its low reactivity; hence, some modification of lignin is usually necessary before its usage in the polyurethane manufacture. In this chapter, a comprehensive review of the different approaches implemented for the use of lignin in the synthesis of polyurethanes will be assessed.

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Abbreviations

BA:

Blowing agent

BPU:

Branch-chained polyurethanes

CASE:

Coatings, adhesives, sealants, and elastomers

CAT:

Catalyst

CMR:

Carcinogenic, mutagenic, and reprotoxic

CNSL:

Cashew nutshell liquid

CPU:

Crosslinked polyurethanes

DABCO:

1,4-Diazobicyclo[2.2.2]-octane

DBTDL:

Dibutyltin dilaurate

FAME:

Fatty acid methyl esters

F-PUF:

Flexible polyurethane foams

G:

Guaiacyl

GHG:

Greenhouse gases

H:

p-Hydroxyphenyl

HPU:

Hyperbranched polyurethanes

HTL:

Hydrothermal liquefaction

KL:

Kraft lignin

LCA:

Life cycle analysis

LPU:

Linear polyurethanes

LS:

Lignosulphonates

MDI:

Methylene diphenyl diisocyanate

NIPU:

Non-isocyanate polyurethane

PCM:

Phase change materials

PDI:

Pentamethylene diisocyanate

PEG:

Polyethylene glycol

PHU:

Poly(hydroxyurethane)

PI:

Polyisocyanate

PO:

Propylene oxide

PU:

Polyurethane

PUD:

Polyurethane dendrimers

PUF:

Polyurethane foams

PUSM:

Polyurethane smart materials

R-PUF:

Rigid polyurethane foams

S:

Syringyl

SF:

Surfactant

STL:

Solvothermal liquefaction

TBAB:

Tetrabutylammonium bromide

TDI:

Toluene diisocyanate

TEA:

Techno-economic analysis

UV:

Ultraviolet

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Correspondence to Fabio Hernández-Ramos .

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Hernández-Ramos, F., de Hoyos-Martínez, P.L., Barriga, S., Erdocia, X., Labidi, J. (2023). Current Approaches for Polyurethane Production from Lignin. In: Pathak, P.D., Mandavgane, S.A. (eds) Biorefinery: A Sustainable Approach for the Production of Biomaterials, Biochemicals and Biofuels. Springer, Singapore. https://doi.org/10.1007/978-981-19-7481-6_6

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