Synthesis and Characterization of Water Soluble and Water Swelling Thermo-sensitive Copolymers based on 2- Hydroxyethylacrylate and 2-Hydroxyethylmethacrylate

Mun, Grigoriy A.; Yermukhambetova, B. B.; Urkimbayeva, P.I.; Bakytbekov, Rinat; Irmukhametova, Galiya S.; Mangazbayeva, R.А.; Сулейменов, И. Э.

doi:10.1016/j.aasri.2012.11.095

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…The surfactant solutions likely had negligible effects on the swelling of the hydrophobic polymer PPFDA and the cross-linked ZWP due to their known resistance to swelling. 5,55−58 Surfactants like SDS have been shown to increase the swelling of PHEMA gels, 59 likely a result of the hydrophobic interactions between the surfactant tail and the hydrophobic segments of the polymer (e.g., hydrocarbon backbone). 60 Although similar effects of surfactants could occur to the PHEMA thin films reported here, it was unlikely a main reason for the reduced biofilm formation caused by surfactants.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

Chen

Lang

Donadt

et al. 2021

ACS Biomater. Sci. Eng.

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Reduced biofilm formation is highly desirable in applications ranging from transportation to separations and healthcare. Biofilms often form at the three-phase interface where air, liquid, and solid coexist due to the close proximity to nutrients and oxygen. Reducing biofilm formation at the triple interface presents challenges because of the conflicting requirements for hydrophobicity at the air−solid interface (for selfcleaning properties) and for hydrophilicity at the liquid−solid interface (for reduced foulant adhesion). Meeting those needs simultaneously likely entails a dynamic surface, capable of shifting the surface energy landscape in response to wetting conditions and thus enabling hydrophobicity in air and hydrophilicity in water.Here, we designed a facile approach to render existing surfaces resistant to biofilm formation at the triple interface. By adding trace amounts (∼0.1 mM) of surfactants, biofilm formation of Pseudomonas aeruginosa (known to form biofilm at the triple interface) was reduced on all surfaces tested, ranging from hydrophilic to hydrophobic, polar to nonpolar. That reduced fouling was not a result of the known antimicrobial effects. Instead, it was attributed to the surface-adsorbed surfactants that dynamically control surface energy at the triple interface. To further understand the effect of surfactant−surface interactions on biofilm reduction, we systematically varied the surfactant charge type and surface properties (surface energy and charge). Electrostatic interactions between surfactants and surfaces were identified as an influential factor when predicting the relative fouling reduction upon introduction of surfactants. Nevertheless, biofilm formation was reduced even on the charge-neutral, fluorinated surface made of poly(1H, 1H, 2H, 2H-perfluorodecyl acrylate) by more than 2-fold simply via adding 0.2 mM dodecyl trimethylammonium chloride or 0.3 mM sodium dodecyl sulfate. Given its robustness, this strategy is broadly applicable for reducing fouling on existing surfaces, which in turn improves the cost-effectiveness of membrane separations and mitigates contaminations and nosocomial infections in healthcare.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

Chen

Lang

Donadt

et al. 2021

ACS Biomater. Sci. Eng.

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“…The disadvantage of the present method [1] is a high viscosity of the thermo-sensitive copolymer that reduces the circulation rate.…”

Section: Introductionmentioning

confidence: 95%

“…New types of thermal energy converters into mechanical/electrical one have been proposed [1]. The approach [1] is based on the occurrence of accelerated circulation of a fluid (compared to the previously known analogues, such as solar collectors [2]), which appears under the influence of gradient of osmotic pressures, in a contour.…”

Section: Introductionmentioning

confidence: 99%

“…Gradient of osmotic pressures can be reached significant values and achieved in a variety of ways. It has been shown [1] that for this purposes a solution containing the macromolecules of a thermo-sensitive copolymer, which contain ionic groups, can be used. In this case, the local change in temperature of one of the parts of the contour (for instance, upon heating by sunbeam) may cause a phase transition, which resulted in sharp decrease in the concentration of charged particles at given part of the contour.…”

Section: Introductionmentioning

confidence: 99%

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New Thermal Energy Converters Based on Polyelectrolyte Hydrogels

Сулейменов

Falaleev

Shaltykova

et al. 2014

AMR

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The theory of thermal energy converters based on polyelectrolyte hydrogels has been developed. The possibility of providing the circulation of a fluid in the contour by controlled variations of the local value of concentrations of the mobile ions that cause an osmotic pressure gradient was shown. On the basis of the solution of motion equations of the mobile ions the numerical estimates of parameters of proposed type of circulation contour are given.

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On novel hydrogels based on poly(2-hydroxyethyl acrylate) and polycaprolactone with improved mechanical properties prepared by frontal polymerization

Damonte

Maddalena

Fina

et al. 2022

European Polymer Journal

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Synthesis and Characterization of Water Soluble and Water Swelling Thermo-sensitive Copolymers based on 2- Hydroxyethylacrylate and 2-Hydroxyethylmethacrylate

Cited by 4 publications

References 6 publications

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

New Thermal Energy Converters Based on Polyelectrolyte Hydrogels

On novel hydrogels based on poly(2-hydroxyethyl acrylate) and polycaprolactone with improved mechanical properties prepared by frontal polymerization

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