Access to tough and transparent nanocomposites via Pickering emulsion polymerization using biocatalytic hybrid lignin nanoparticles as functional surfactants

Abstract

Weak interfacial binding of lignin within synthetic polymer composites results in unsatisfactory mechanical properties that limit their application prospects. In the present work, polystyrene (PS) and poly(butyl methacrylate) (PBMA) nanocomposites...

Unravelling the Hydration Barrier of Lignin Oleate Nanoparticles for Acid‐ and Base‐Catalyzed Functionalization in Dispersion State

“… [17] This anionic surface charge together with a well‐defined spherical shape and a large surface area to mass ratio make them viable candidates for physical modification via adsorption of positively charged compounds such as enzymes or polymers. [ 18 , 19 ] These features of LNPs have contributed to the sprouting of applications in many different areas and materials such as biomedicine,[ 8 , 20 , 21 , 22 , 23 , 24 ] water purification, [25] composites,[ 26 , 27 , 28 , 29 , 30 ] biocatalysis,[ 31 , 32 , 33 ] and Pickering emulsions. [ 27 , 34 , 35 ] However, one of the main limitations of LNPs arises from their dissolution in basic (pH>10) and aggregation in acidic (pH<2.5) aqueous solutions, which restricts their functionalization and potential end‐uses.…”

“…[ 18 , 19 ] These features of LNPs have contributed to the sprouting of applications in many different areas and materials such as biomedicine,[ 8 , 20 , 21 , 22 , 23 , 24 ] water purification, [25] composites,[ 26 , 27 , 28 , 29 , 30 ] biocatalysis,[ 31 , 32 , 33 ] and Pickering emulsions. [ 27 , 34 , 35 ] However, one of the main limitations of LNPs arises from their dissolution in basic (pH>10) and aggregation in acidic (pH<2.5) aqueous solutions, which restricts their functionalization and potential end‐uses. [ 36 , 37 , 38 , 39 , 40 , 41 ] To overcome these shortcomings, stabilization of LNPs via covalent internal cross‐linking has been suggested to overcome solvent instability.…”

Multifunctional lignin-based nanocomposites and nanohybrids

“…Later, the same group extended this biocatalytic hybrid LNP approach to the synthesis of polymer nanocomposites in polystyrene and polybutylmethacrylate matrices. 376 The thermally reformable composites contained up to 35 wt% of lignin and surpassed the pristine polymers in mechanical properties (tensile strength and toughness).…”

Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

“…Composites formed via Pickering polymerization of PS or PbuMA (polysttyrene (PS) or poly (butyl methacrylate) PBuMA) stabilized by CNF or CNCAs, respectively, showed enhanced mechanical and thermal properties compared to CNF/CNCAs free composites [314,315] . Regenerated cellulose (RC) [316] and LNPs [317,318] were also incorporated into poly(lactic acid) (PLA) and polystyrene (PS)/poly (butyl methacrylate) (PBuMA) composites via oil‐in‐water Pickering emulsion stabilized by RC and LNPs, respectively.…”