Self-Stratified Antimicrobial Acrylic Coatings via One-Step UV Curing

Zhao, Jie; Millians, William; Tang, Saide; Wu, Tiehang; Zhu, Lei; Ming, Weihua

doi:10.1021/acsami.5b04633

Cited by 83 publications

(69 citation statements)

References 40 publications

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“…However, after Ar+ etching, the surface Si atomic percentage of these two samples was significantly reduced, and both C and N were considerably increased. This interesting result suggests that there is a tendency for PEG to embed into the bulk in order to reduce the overall surface energy of the coating, a surface phenomenon is commonly found in phase separation systems 32–34…”

Section: Resultsmentioning

confidence: 88%

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Aza‐Michael Addition Chemistry for Tuning the Phase Separation of PDMS/PEG Blend Coatings and Their Anti‐Fouling Potentials

Zhou

Yang

2020

Macro Chemistry & Physics

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Free adjustment of micro/nanophase‐separation degrees in coatings is not easily accessible, which is a big handicap in the development of phase‐separation‐related applications. Here, by utilizing the reactivity difference between two phases, a two‐step aza‐Michael addition pre‐crosslinking strategy, demonstrated by acryloxy‐terminated polydimethylsiloxane/polyethylene glycol (PEG) blend coatings, is proposed for the first time to tune microphase separation degrees, and promote compatibility of the biphasic amphiphilic polymer blends. Followed by a systematic study of the two‐step pre‐crosslinking time, surface morphologies of samples with desired phase‐separation degrees are unveiled using optical microscopy, AFM, and XPS. The wettability, and anti‐fouling properties — for example, anti‐protein and anti‐marine bacterial (Shewanella) adhesion — of these coatings are assessed. Less protein adsorption is observed on those surfaces with lower receding water contact angles. Shewanella adhesion is efficiently discouraged by the introduction of PEG segments, but the trend evolved with surface wettability and micro/nanophase structure in a complex way.

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Section: Resultsmentioning

confidence: 88%

“…This interesting result suggests that there is a tendency for PEG to embed into the bulk in order to reduce the overall surface energy of the coating, a surface phenomenon is commonly found in phase separation systems. [32][33][34] Macromol. Chem.…”

Section: Effect Of Pdms/peg Ratiomentioning

confidence: 99%

Aza‐Michael Addition Chemistry for Tuning the Phase Separation of PDMS/PEG Blend Coatings and Their Anti‐Fouling Potentials

Zhou

Yang

2020

Macro Chemistry & Physics

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“…As shown in Figure , there was no bacterial inhibition zone observed around the respective samples, APUS 0%, APUS 10%, and APUS 20% against S. aureus and P. aeruginosa , which confirmed that no harmful compound was present in the coating. If any toxic compound were released, the zone of inhibition would have occurred around the sample . The zone of inhibition test also proves that the developed coating was completely free of biocides, and does not release off any toxic substance.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of eco‐friendly siloxane‐semifluorinated polyurethane coatings for underwater application

Sebastin

Mohanty

Nayak

2019

J of Applied Polymer Sci

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Siloxane‐semifluorinated polyurethane coatings were prepared for robust underwater application. Initially, acrylic polyol (FS‐GPTACP)‐containing fluoroalkoxysilane (1H,1H,2H,2H‐Perfluorooctyltrimethoxysilane) pendant group was synthesized by the free‐radical polymerization method. Different weight percentages of polydimethylsiloxane (0, 10, and 20 wt %) were added to the polyol to tune the mechanical and the surface energy of the coating. Subsequently, this polyol mixture was cured with 4, 4′‐methylenebis(cyclohexyl isocyanate) (H12MDI) to prepare a series of siloxane‐semifluorinated polyurethane–urea hybrid coatings (APUS 0%, APUS 10%, and APUS 20%). The synthesized coating showed low surface energy, hydrophobicity with exceptional water, and alkali resistance. Moreover, the coating displayed excellent mechanical properties with low pseudobarnacle adhesion strength. The coatings also showed nontoxicity against gram‐positive and gram‐negative bacterial strains. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47720.

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“…However, in most cases, coatings involve only physical interactions with the surfaces rather than chemical bond formation; hence may be less durable. A more reliable and durable coating should involve a curing method, metal ligand coordination or covalent bond formation.…”

Section: Introductionmentioning

confidence: 99%

Nanoconjugates of methacrylic polymers: Synthesis, characterization, and immobilization to leather

Ayyappan

Prakash

Jaisankar

et al. 2019

J of Applied Polymer Sci

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Imparting superhydrophobicity to surfaces has direct implications for developing water-repellent materials. Most hydrophobic materials cannot be applied directly to specific surfaces like leather because of noncompatibility. Although methacrylic polymers are compatible to leather, their inherent hydrophilic characteristics make it challenging to use for introducing hydrophobicity or superhydrophobicity. In this article, we present a strategy of introducing hydrophobicity in various degrees as well as superhydrophobicity to different surfaces, particularly leather and glass surfaces by using conjugates of methacrylic polymers and various carbon nanomaterials. The covalent functionalization of methacrylate polymers with carbon nanotubes and fullerenes was performed by radical polymerization in the presence or absence of chain transfer agents (CTAs). CTA was used during polymerization to introduce carboxylic acid group, necessary for chromium-assisted binding to leather to avoid leaching. A balance between the compatibility of the polymer nanoconjugates with the leather and the amount necessary for coating stabilization was studied by a rheometer. While water contact angle measurement indicated the mild hydrophobicity in most cases, we were delighted to observe superhydrophobicity in one case presumably due to increased roughness because of the presence of specific nanomaterial to overcome inherent hydrophilicity of methacrylic polymers.

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Self-Stratified Antimicrobial Acrylic Coatings via One-Step UV Curing

Cited by 83 publications

References 40 publications

Aza‐Michael Addition Chemistry for Tuning the Phase Separation of PDMS/PEG Blend Coatings and Their Anti‐Fouling Potentials

Aza‐Michael Addition Chemistry for Tuning the Phase Separation of PDMS/PEG Blend Coatings and Their Anti‐Fouling Potentials

Synthesis and characterization of eco‐friendly siloxane‐semifluorinated polyurethane coatings for underwater application

Nanoconjugates of methacrylic polymers: Synthesis, characterization, and immobilization to leather

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