Application of zwitterionic oligomers grafted with lignin as multifunctional Pickering stabilizers to enhance the photo oxidative durability of waterborne methyl acrylic coatings

Research Overview: According to the study included in Volume 222, Part A of Progress in Organic Coatings (published in January 2027), authors Marija Prosheva, Justine Elgoyhen, Jadranka Blazhevska Gilev, and Radmila Tomovska reported a zwitterionic oligomer grafted lignin and used it as a multifunctional Pickering stabilizer for waterborne methyl acrylic coatings. The research focuses on improving the photocatalytic durability of this system.

Material and formula ideas

The core of this study is to graft modify lignin with zwitterionic oligomers, making it have Pickering stabilizer function.

. In the water-based methyl methacrylate coating system, this modified lignin not only participates in dispersion stability, but also is associated with the weather stability performance of the coating. From the perspective of polymer aging and stabilization technology, introducing bio based lignin into water-based coating formulations provides a new component selection for the design of antioxidant systems and photostability.

Significance for the polymer additive industry

Waterborne methyl acrylic coatings face the risk of photo oxidation degradation in outdoor applications, and usually require the use of a synergistic combination of antioxidant and photo stabilization systems to enhance weather stability.

. This study uses modified lignin as a multifunctional Pickering stabilizer, suggesting that the additive industry should pay attention to the potential role of biobased materials in stabilizing complex systems. Although this work does not directly involve classical light stabilizers such as HALS or UVA, its focus on photo oxidative durability is consistent with the direction of polymer aging research, which can provide reference for the subsequent combination of lignin based components with HALS, UVA and other complex systems.

Uncertainties to Consider

The source only provides research titles, authors, publication information, and topic directions, without disclosing specific formula ratios, photo oxidation testing conditions, durability data, and comparison results with HALS/UVA composites.

. The relevant conclusions shall be based on the full text of the paper.

Information source:Zwitterionic oligomer-grafted lignin as a multifunctional Pickering stabilizer for waterborne methacrylic coatings with enhanced photo-oxidative durability， Organized by Herun Chemical.