Novel L-DOPA-derived poly(ester amide)s : monomers, polymers and the first L-DOPA-functionalized bio-based adhesive tape

The synthesis, characterization, and testing of a range of novel bio-inspired L-DOPA-derived poly(ester amide)s is presented, using a widely applicable, straightforward chemistry. A model system is used to study and establish the monomer and polymer synthetic protocols, and to provide a set of optimum reaction conditions. It is further shown that fully biobased L-DOPA-containing adhesive tapes can be fabricated, which are positively evaluated in terms of their adhesive properties. The newly developed synthetic protocol constitutes a versatile platform for accessing and tailoring a plethora of relevant structures, including a variety of potentially biocompatible poly(ethylene glycol)-based materials

Hydroxyphenyl functionalized poly(ester amide)

The present invention relates to a hydroxyphenyl functionalized poly(ester amide), in particular a L-DOPA-based poly(ester amide), and to its use as an adhesive

Enzyme-catalyzed polycondensate method production and adhesive composition

A polycondensate obtainable by reacting: (a) a carboxyl-terminated oligomeric condensation product of (a1) a polyol comprising at least three hydroxyl groups, wherein at least two of these hydroxyl groups are primary hydroxyl groups, and (a2) a dicarboxylic acid, and (b) a diol, comprising two primary hydroxyl groups, wherein the condensation reaction between (a) and (b) is catalyzed by an enzyme. Furthermore, the present invention provides a method of producing such a polycondensate and adhesive compositions comprising said polycondensate

The chemical and physical properties of lignin bio-oils, facts and needs

Publisher Copyright: © 2023 Elsevier B.V.Lately, the interest in lignin valorization has notably grown within the scientific community. In the last decade, the number of publications focusing on lignin as an alternative to fossil-based resources has exponentially increased. Different strategies have been employed to valorize lignin as a source of renewable fuel and building blocks for chemicals and materials development. Of these strategies, lignin depolymerization producing lignin oils (bio-oils) has been recently explored on laboratory and pilot scale. The produced bio-oil exhibits unique chemical and physical properties that depend on the type of lignin with regard to the nature of parent biomass and can be further tailored by both the isolation and the depolymerization process conditions. This review aims to group the work done on the production and valorization of bio-oils to provide a common description of the depolymerized lignin oils. This work proposes reporting guidelines of bio-oil properties required to bridge the gap between the depolymerization techniques and chemicals/materials development using the bio-oils properties.The authors wish to acknowledge COST Action CA17128 “Establishment of a Pan-European Network on the Sustainable Valorization of Lignin (LignoCOST)”. VITO would like to acknowledge the province of Noord-Brabant (The Netherlands) for the financial support in the framework of the activities at the Shared Research Center Biorizon. To the NIBCON project, part of Moonshot, an industry-driven innovation programme of the Flemish Government that supports companies in reducing their CO2 emissions. JGV and KVB acknowledge the support from the EC LIFE programme for the grant: LIFE20 ENV/BE/000671 “LIFE VIABLE” project. The authors wish to acknowledge COST Action CA17128 “Establishment of a Pan-European Network on the Sustainable Valorization of Lignin (LignoCOST)”. VITO would like to acknowledge the province of Noord-Brabant (The Netherlands) for the financial support in the framework of the activities at the Shared Research Center Biorizon. To the NIBCON project, part of Moonshot, an industry-driven innovation programme of the Flemish Government that supports companies in reducing their CO2 emissions. JGV and KVB acknowledge the support from the EC LIFE programme for the grant: LIFE20 ENV/BE/000671 “LIFE VIABLE” project.Peer reviewe