Surface modification by self-assembled coating with amphiphilic comb-shaped block copolymers: A solution to the trade-off among solubility, adsorption and coating stability

Guo, Ran; Liu, Yifan; Zhang, Yao; Dong, Anjie; Zhang, Jianhua

doi:10.1007/s13233-013-1142-2

Cited by 15 publications

(10 citation statements)

References 51 publications

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“…Since the rst report of radical addition-fragmentation chain transfer (RAFT) processes in the 1970s, 123,124 it has been demonstrated that these processes are versatile approaches for the synthesis of polymers with controlled molecular weight, narrow dispersity index, and complex macromolecular architectures. [125][126][127] Unfortunately, to the best of our knowledge, this approach has been neglected for the synthesis of sPS copolymers.…”

Section: Reviewmentioning

confidence: 99%

Recent progress in the chemical modification of syndiotactic polystyrene

Jaymand

2014

Polym. Chem.

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Section: Reviewmentioning

confidence: 99%

Recent progress in the chemical modification of syndiotactic polystyrene

Jaymand

2014

Polym. Chem.

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“…The zwitterionic polymer brushes include two widely studied materials: carboxybetaine methacrylate (CBMA) and sulfobetaine methacrylate (SBMA). The four polymers examined here are strongly hydrophilic and antifouling. − The antifouling polymer-tethered PSF membranes considered here are widely used and studied in the wastewater treatment industry. − After the construction of polymer membrane models, we perform direct MC/MD interfacial simulations to obtain the wetting properties at 500 K. We begin the process of evaluating wetting properties at 500 K primarily for simulation sampling efficiency reasons. With knowledge of the wetting properties at 500 K, we conduct free energy path simulations to efficiently determine the evolution of interfacial properties with temperature.…”

Section: Introductionmentioning

confidence: 99%

Coupled Monte Carlo and Molecular Dynamics Simulations on Interfacial Properties of Antifouling Polymer Membranes

2021

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We use molecular simulation to study the wetting behavior of antifouling polymer-tethered membranes. We obtain the interfacial properties (e.g., contact angle) of water at various temperatures for five polymer membranes, including a base polysulfone (PSF) membrane and four other PSF membranes grafted with antifouling polymers (two poly(ethylene glycol) (PEG) tethers and two zwitterionic tethers). We implement a coupled Monte Carlo (MC)/molecular dynamics (MD) approach to determine the interface potentials of water on the membrane surfaces in an efficient manner. Within this method, short MC and MD simulations are performed in cycles to collect the surface excess free energy of a thin water film on polymer membrane surfaces. Simulation results show that the grafting of zwitterionic tethers provides a more significant enhancement in the hydrophilicity of the PSF membrane than that of the PEG tethers. Water completely wets the surface of zwitterionic polymer membranes.

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“…The method is capable of making the hydrophobic chains and hydrophilic chains more tightly bound such that the hydrophilic chains are immobilized on the surface of the PVDF membrane. 33 The addition of an amphiphilic copolymer can improve the hydrophilicity and antifouling performance of the PVDF membrane, which imparts a uniform pore size, high water flux, and narrow pore-size distribution owing to selfassembly ability. 34 Although previously reported studies have effectively improved the hydrophilic properties of PVDF membranes, the problems of high viscosity and short defoaming time of the PVDF casting solution are rarely reported.…”

Section: Introductionmentioning

confidence: 99%

“…Some metal-free fluorinated amphiphilic copolymers such as P(VDF- co -CTFE)- g -PAN, P(VDF- co -CTFE)- g -PMMA, and P(VDF- co -CTFE)- g -(PMMA-b-PMA) have been synthesized via photoinduced Cu(II)-mediated RDRP, which provided deep insight into fluoropolymer modification. − Encouraged by recent studies, photoinduced Cu(II)-mediated RDRP was applied for the modification of PVDF pristine membranes, and novel materials with good hydrophilic properties were obtained. The method is capable of making the hydrophobic chains and hydrophilic chains more tightly bound such that the hydrophilic chains are immobilized on the surface of the PVDF membrane . The addition of an amphiphilic copolymer can improve the hydrophilicity and antifouling performance of the PVDF membrane, which imparts a uniform pore size, high water flux, and narrow pore-size distribution owing to self-assembly ability …”

Section: Introductionmentioning

confidence: 99%

Novel PVDF-g-NMA Copolymer for Fabricating the Hydrophilic Ultrafiltration Membrane with Good Antifouling Property

Tong

Huang

Zuo

et al. 2020

Ind. Eng. Chem. Res.

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Improving the hydrophilicity of the poly(vinylidene fluoride) (PVDF) ultrafiltration membrane can change its adsorption fouling characteristics. Here, a novel amphiphilic material of PVDF grafted with N-methylolacrylamide (PVDF-g-NMA) was developed via photoinduced Cu(II)-mediated reversible deactivation radical polymerization (RDRP). The PVDF-g-NMA ultrafiltration membrane was prepared by the nonsolventinduced phase-separation method. The PVDF-g-NMA copolymer was characterized by 1 H NMR and Fourier transform infrared spectroscopy. The performance of the PVDF-g-NMA membrane was evaluated by determining the permeation flux, contact angle, roughness, and antifouling tests. The roughness data show that a low content of N-methylolacrylamide can effectively reduce the surface roughness of membranes by 50%, resulting in greater antifouling ability. The prepared ultrafiltration membrane containing 15 wt % PVDF-g-NMA exhibited the best hydrophilicity with an average pure water flux of up to 272.1 L•m −2 •h −1 , higher than that of the pure PVDF membrane (45.4 L•m −2 •h −1 ). The contact angle of the PVDF-g-NMA ultrafiltration membrane decreased from 85.5 to 67.4°. The bovine serum albumin rejection rate of the PVDF-g-NMA membrane significantly increased from 85.7 to 92.6%, and the pure water flux recovery rate increased from 79.0 to 88.5%. The PVDF-g-NMA ultrafiltration membrane had excellent hydrophilicity and antifouling properties, which would be promising for wastewater treatment.

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Surface modification by self-assembled coating with amphiphilic comb-shaped block copolymers: A solution to the trade-off among solubility, adsorption and coating stability

Cited by 15 publications

References 51 publications

Recent progress in the chemical modification of syndiotactic polystyrene

Recent progress in the chemical modification of syndiotactic polystyrene

Coupled Monte Carlo and Molecular Dynamics Simulations on Interfacial Properties of Antifouling Polymer Membranes

Novel PVDF-g-NMA Copolymer for Fabricating the Hydrophilic Ultrafiltration Membrane with Good Antifouling Property

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