Self-Coacervation of Oligo(ethylene glycol) and Oligo(2-ethyl-2-oxazoline)-Based Double Hydrophilic Brush Block Copolymers in Aqueous Solution.

Coacervates are a highly relevant class of structures formed via liquid-liquid phase separation and new coacervate-forming polymers are highly sought after. Here, the formation of simple coacervate droplets from a double hydrophilic block copolymer (DHBC) with the combination of poly(oligo ethylene glycol methacrylate) (POEGMA) and poly(oligo 2-ethyl-2-oxazoline methacrylate) (POEtOx) without the use of external triggers or charges is shown. At a high concentration of 25 wt.

High-Performance Recyclable Polyester Elastomers Through Transient Strain-Stiffening.

Polyester thermoplastic elastomers are promising sustainable materials but their mechanical properties need improvement, in particular, attempts to increase strength often result in compromised elasticity. Strong and tough elastomers are known but require complex polymer formulations together with control over cross-linking or crystallinity, both of which challenge recycling. Here, the introduction of transient strain-stiffening approaches into fully amorphous structures show both strengthening and toughening of elastomers while conserving recyclability.

Precise Carboxylic Acid-Functionalized Polyesters in Reprocessable Vitrimers.

Thermosets are valued for their exceptional dimensional stability, mechanical properties, and resistance to creep and chemicals. Their permanent molecular structures limit reshaping, reprocessing, and recycling. Incorporating exchangeable chemical bonds into cross-linked polymer networks provides materials with thermoset-like properties that are also reprocessable.

Mechanism of Action of Oxazoline-Based Antimicrobial Polymers Against Staphylococcus aureus: In Vivo Antimicrobial Activity Evaluation.

Antimicrobial-resistant pathogens have reached alarming levels, becoming one of the most pressing global health issues. Hence, new treatments are necessary for the fight against antimicrobial resistance. Synthetic nanoengineered antimicrobial polymers (SNAPs) have emerged as a promising alternative to antimicrobial peptides, overcoming some of their limitations while keeping their key features.