The use of lignin for material and chemical applications has gained interest in recent times
due to the environmental focus on using biomass for renewable materials as well as the …

This review article aims to summarize the potential of using renewable natural resources,
such as lignin and tannin, in the preparation of NIPUs for wood adhesives. Polyurethanes …

Polyurethane (PU), as a polymer material with versatile product forms and excellent
performance, is used in coatings, elastomers, adhesives, and foams widely. However, the …

Polyurethane foams, are highly demanded in many applications and their use is increasing
incessantly. Besides these traditional applications, recently polyurethane foams with …

Lignin is a good candidate for the polymerization and chemical modification to prepare
sustainable chemicals and materials, but a relatively low hydroxyl content becomes an …

Polyurethane chemistry can yield diverse sets of polymeric materials exhibiting a wide range
of properties for various applications and market segments. Utilizing lignin as a polyol …

Lignin is one of the most abundant natural polymers. Produced as a by-product from the bio-
refinery industries, it remains largely underutilised in high-value industrial applications. The …

Several efforts have been dedicated to the development of lignin-based polyurethanes (PU)
in recent years. The low and heterogeneous reactivity of lignin hydroxyl groups towards …

Polymeric foams derived from renewable sources are a requirement of the modern world
due to increasing concern about the environment and various issues related to petroleum …

In this study, lignin isolated and fractionated from black liquor was used as a pre-polymer to
prepare bio-polyurethane (Bio-PU) resin, and the resin was impregnated into ramie fiber …