Surface Properties and Protein Adsorption Performance of Fluorinated Amphiphilic Polymers

Zhu, Baojun; Yang, Jingjing; Liu, Jiao; Meng, Yanbin; Du, Xiaoqing; Cai, Chao; Zhang, Zhao

doi:10.1021/acs.jpcc.9b01069

Cited by 14 publications

(7 citation statements)

References 53 publications

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“…The surface and bulk composition can significantly affect the antiprotein adsorption performance. 34 Antifouling coatings are often exposed to aqueous environments, and amphiphilic surfaces are easy to reorganize in the aqueous environment. Therefore, the chain segment motion on the surface of the amphiphilic copolymer PM x B y (Fi) z coating under dry and wet conditions was studied.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Protein-Resistant Amphiphilic Copolymers Containing Fluorosiloxane Side Chains with Controllable Length

Wang

Zhang

Cai

et al. 2022

ACS Appl. Polym. Mater.

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Molecular-scale compositional heterogeneities can slash the nonspecific interaction between proteins and surfaces, resisting surface contamination. In this work, an amphiphilic copolymer containing a soft fluorosilicone macromonomer with controllable chain length as low-surface-energy hydrophobic component and a zwitterionic monomer as hydrophilic component was prepared to establish molecular-scale compositional heterogeneities. The length of the fluorosiloxane side chains can significantly impact the surface compositional heterogeneities, thus influencing the antifouling performance of the copolymer coatings. Even under water, the coating still retains a large number of low-surface-energy fluorosilicone segments on the surface. The balance between hydrophilic and hydrophobic segments on the surface provides a better synergistic effect, which endows the copolymer coatings with excellent resistance to various proteins.

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…The surface and bulk composition can significantly affect the antiprotein adsorption performance . Antifouling coatings are often exposed to aqueous environments, and amphiphilic surfaces are easy to reorganize in the aqueous environment.…”

Section: Resultsmentioning

confidence: 99%

Protein-Resistant Amphiphilic Copolymers Containing Fluorosiloxane Side Chains with Controllable Length

Wang

Zhang

Cai

et al. 2022

ACS Appl. Polym. Mater.

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“…It is believed that the surface free energy of a solid surface is a vital parameter of interfacial or intermolecular attractive forces. 45,46 The low-surface-energy moieties would endow RO-FPEI with a low-adhesion propensity towards foulants, and thus foulants could favorably detach from the membrane surface. In a word, the low surface free energy of the RO-FPEI surface is beneficial to further enhance the membrane anti-fouling properties.…”

Section: Surface Properties Of the Polyamide Ro Membranesmentioning

confidence: 99%

Fabrication of anti‐fouling thin‐film composite reverse osmosis membrane via constructing heterogeneous wettability surface

Chen

Gao

et al. 2021

J of Applied Polymer Sci

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Anti-fouling properties are tightly related to the surface properties of reverse osmosis (RO) membranes. In our study, fluorinated polyethyleneimine (FPEI) was synthesized by introducing perfluoroalkyl groups into a hydrophilic polyethyleneimine (PEI) matrix, and the heterogeneous wettability surface with hydrophilic and low-surface-energy properties was constructed by grafting FPEI on membrane surface via the carbodiimide-induced method.Verified by the result analysis of SEM, AFM, and zeta potentials measurements, the fluorinated RO membrane surface presented denser, smoother, and reduced negative charge. The surface free energy of RO membrane surface after grafting FPEI decreased from 45.5 to 38.7 mJ/m 2 . By using bovine serum albumin (BSA), humic acid (HA), and dodecyltrimethyl ammonium bromide (DTAB) as model foulants, the fluorinated RO membrane exhibits optimal fouling resistance and fouling release properties compared to pristine membrane and membrane modified by surface grafting hydrophilic PEI. Especially, the high recovery ratio (99%) and low total flux decline ratio (17.2%) were acquired during the filtration of BSA solution. These results manifested that the construction of a heterogeneous wettability surface can further improve the anti-fouling properties of RO membranes compared to a pure hydrophilic surface, and the corresponding anti-fouling mechanism was put forward.

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“…Unlike hydrocarbon surfactants, fluorinated surfactants have excellent surface activity and thermal and chemical stability [ 3 ], so have many potential applications [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. Research on ionic gemini fluorinated surfactants has been published [ 13 , 14 , 15 , 16 ], but non-ionic versions have rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

Promoting Efficacy and Environmental Safety of Pesticide Synergists via Non-Ionic Gemini Surfactants with Short Fluorocarbon Chains

Wang

Xu²,

Shi³

et al. 2022

Molecules

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Improving the utilization rate of pesticides is key to achieve a reduction and synergism, and adding appropriate surfactant to pesticide preparation is an effective way to improve pesticide utilization. Fluorinated surfactants have excellent surface activity, thermal and chemical stability, but long-chain linear perfluoroalkyl derivatives are highly toxic, obvious persistence and high bioaccumulation in the environment. Therefore, new strategies for designing fluorinated surfactants which combine excellent surface activity and environmental safety would be useful. In this study, four non-ionic gemini surfactants with short fluorocarbon chains were synthesized. The surface activities of the resulting surfactants were assessed on the basis of equilibrium surface tension, dynamic surface tension, and contact angle. Compared with their monomeric counterparts, the gemini surfactants had markedly lower critical micelle concentrations and higher diffusivities, as well as better wetting abilities. We selected a single-chain surfactant and a gemini surfactant with good surface activities as synergists for the glyphosate water agent. Both surfactants clearly improved the efficacy of the herbicide, but the gemini surfactant had a significantly greater effect than the single-chain surfactant. An acute toxicity test indicated that the gemini surfactant showed slight toxicity to rats.

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Surface Properties and Protein Adsorption Performance of Fluorinated Amphiphilic Polymers

Cited by 14 publications

References 53 publications

Protein-Resistant Amphiphilic Copolymers Containing Fluorosiloxane Side Chains with Controllable Length

Protein-Resistant Amphiphilic Copolymers Containing Fluorosiloxane Side Chains with Controllable Length

Fabrication of anti‐fouling thin‐film composite reverse osmosis membrane via constructing heterogeneous wettability surface

Promoting Efficacy and Environmental Safety of Pesticide Synergists via Non-Ionic Gemini Surfactants with Short Fluorocarbon Chains

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