This review summarizes pH-responsive monomers, polymers and their derivative nano- and micro-structures including micelles, cross-linked micelles, microgels and hydrogels.

To meet high hygiene requirements, intensive studies are being carried out on antimicrobial materials. This study reports the synthesis of 3‐((1‐hydroxybenzo[d][1,2,3]diazaborinin‐2(1H)‐yl)sulfonyl)propyl methacrylate (DAZBMA) and its polymer, which is antimicrobial [tested with Staphylococcus aureus (ATCC 25923 and MU 40) and Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, and Candida albicans ATCC 10239] on solid surfaces. Antibiofilm capability was tested against MU 40. Although DAZBMA and its polymer show a high quorum‐sensing inhibition property (tested with Chromobacterium violaceum CV 026 and CV 12472 and P. aeruginosa PA01), the lesser antibacterial activity of the polymer was improved by copolymerizing DAZBMA with quaternized 2‐dimethylaminoethyl methacrylate. The paint films containing the prepared copolymer are highly active against all tested bacteria and show an antibiofilm effect against hospital‐acquired multiple‐antibiotic‐resistant MU 40. The novel copolymer can be used in water‐soluble paints to reduce its biofilm production and pathogenicity, especially for paints used in hospitals. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46907.

In this work, poly(glycidyl methacrylate) (PGMA, G) homopolymers with different molecular weights (5600-21,000 gmol −1) were synthesized by atom transfer radical polymerization (ATRP) method. Epoxy groups of PGMA homopolymers were converted to hydroxyl and 1-methyl piperazin residues by reacting with 1-methyl piperazine via ring-opening reaction. The obtained poly(2-hydroxy-3-methyl piperazinepropyl methacrylate) (PHMPPMA, G-P) homopolymers (from 9450 to 35,900 gmol −1) were reacted with alkyl halides of different carbon chain lengths (methyl-, ethyl-, propyl-, butyl-, pentyl-iodides, hexyl bromide) and benzyl chloride (arylhalide) to form quaternary PHMPPMA homopolymers (G-QP). MIC values varied from 0.125 mg/ml to

In this study, an amphiphilic poly(ethylene glycol)methyl ether-block-poly(glycidyl methacrylate) diblock copolymer (MPEG-b-PGMA) was synthesized via atom transfer radical polymerization (ATRP), and its micellar solution was prepared in acetone/water mixture. Core crosslinked (CCL) micelles were synthesized by cross-linking the epoxy functional group of poly(glycidyl methacrylate) block with ethylenediamine. These CCL micelles were used in the synthesis and stabilization of platinum nanoparticles (PtNPs) in aqueous media. Transmission electron microscopy (TEM) images showed that well-dispersed PtNPs with a diameter of around 5 nm were formed within the MPEG-b-PGMA spherical CCL micelles having 22.0±3.0 nm diameters. The mean TEM diameter of the PtNPs is of the order of several nanometers, which is consistent with the plasmon absorption peaks observed at around 205 and 261 nm. The catalytic activity of CCL micelle-PtNP dispersion was also investigated in the reduction of p-nitrophenol to p-aminophenol in the presence of NaBH 4 . The results showed that the PtNPs exhibit a good catalytic activity toward reduction of p-nitrophenol. CCL micelle-stabilized PtNP dispersions were stable for long periods of time without changing properties at room temperature. CCL micelles found to be good hostage or stabilizer for the NPs in aqueous media.

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