Crosslinking of polyimide atomic-layer-deposited on polyethersulfone membranes for synergistically enhanced performances

Sheng, Ting; Kong, Liang; Wang, Yong

doi:10.1016/j.memsci.2015.03.062

Cited by 14 publications

(3 citation statements)

References 33 publications

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“…Yang et al reported that a novel material synthesized by monoglycidyl ether-terminated PDMS, epoxy resin, and dendritic polyamidoamine presented excellent wear resistance and adhesion [ 8 ]. However, those agents limited the further development of antifouling properties due to the decreasing hydrophobicity [ 9 , 10 ]. Meanwhile, the abuse of modifying agents [ 11 ], toxic solvents, and antifoulants [ 12 , 13 ] restricted the improvement of antifouling properties and disaccorded the demand for environmental protection.…”

Section: Introductionmentioning

confidence: 99%

The Preparation of a Novel Hyperbranched Antifouling Material and Application in the Protection of Marine Concrete

Xie

Ran

et al. 2022

Materials

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Marine fouling on concrete has become one of the severest problems that damage the surface and even cause internal corrosion of marine concrete. Dissimilarly to the previous abuse of toxic antifoulants, developing hydrophobic waterborne antifouling materials could be regarded as one of the most environment-friendly and potential directions to protect marine concrete. However, the insufficient hydrophobicity, antifouling, and mechanical properties limit their application. Herein, we reported a series of hybrid coatings combining hyperbranched polyglycerol (HPG) decorated waterborne fluoro silicone polyurethane (H) and HPG-grafted graphene oxide (G-HPG) that improve the hydrophobicity, antifouling, and mechanical properties. The hybrid materials were modified by the hyperbranched polyglycerol synthesized based on the anionic-ring-opening reaction between glycerol and ethylene glycol or polyethylene glycol. Remarkably, the hydrophobicity (115.19°) and antifouling properties (BSA absorption of 2.33 μg/cm2 and P. tricornutum attachment of 1.289 × 104 CFU/cm2) of the materials could be developed by the modification of HPG with higher generation numbers and backbone molecular weights. Moreover, the mechanical properties negligibly decreased (tensile strength decreased from 11.29 MPa to 10.49 MPa, same pencil hardness and adhesion grade as H of 2H and grade 2). The results revealed that the HPG of higher generation numbers and backbone molecular weights could benefit materials with enhanced antifouling properties and hydrophobicity. The method of hyperbranched modification can be regarded as potentially effective in developing the durability and antifouling properties of marine antifouling materials.

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Section: Introductionmentioning

confidence: 99%

The Preparation of a Novel Hyperbranched Antifouling Material and Application in the Protection of Marine Concrete

Xie

Ran

et al. 2022

Materials

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“…As a result, the maximum amount of material deposited on the surface after an ALD cycle is determined by the nature of the reactions between precursors and substrate surface and between the two precursors. Starting from the year of 2011, we extended the ALD method to the modification and functionalization of UF 11,12,19,[34][35][36][37][38][39][40][41] and microfiltration (MF) [42][43][44][45] membranes for the applications of water treatment. A number of materials including oxides, metals, sulfides and even polymers 8,9 have been deposited on various substrates including ceramics, [10][11][12] polymers, [13][14][15][16][17][18][19] carbon materials, 20,21 or biomolecules.…”

Section: Introductionmentioning

confidence: 99%

“…[24][25][26][27][28][29][30][31][32][33] Previously, these works were exclusively focused on the reduction of membranes pores for gas separation. Starting from the year of 2011, we extended the ALD method to the modification and functionalization of UF 11,12,19,[34][35][36][37][38][39][40][41] and microfiltration (MF) [42][43][44][45] membranes for the applications of water treatment. In these studies, the purposes include (1) to tune the pore size of porous polymeric membranes with subangstrom preciseness to fit various separation systems, and (2) to enhance the surface hydrophilicity and fouling resistance, which is essential in water treatment.…”

Section: Introductionmentioning

confidence: 99%

Atomic layer deposition fabricating of ceramic nanofiltration membranes for efficient separation of dyes from water

Chen

Jia

et al. 2018

AIChE Journal

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To meet the strong need for highly efficient and controllable manufacturing methods to ceramic nanofiltration (NF) membranes, we use atomic layer deposition (ALD) to prepare NF membranes by tightening ultrafiltration (UF) membranes. We confine the ALD deposition of TiO2 to the near‐surface region of substrate UF membranes. The pores (∼5 nm) in the selective layers are progressively reduced, thus transforming the original UF membranes to NF ones at acceptable expense of permeability. A molecular‐weight‐cut‐off (MWCO) down to 890 Da is obtained after merely 40 cycles and the water permeability remains as high as 32 L·m−2·h−1·bar−1. MWCOs can be flexibly tuned by altering ALD cycles, which is lowered down to 410 Da with 60 ALD cycles. The deposited membranes are used to remove dyes from water and they show significantly enhanced rejection to negatively charged dyes. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2670–2678, 2018

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Effect of Crosslinkers on Properties

2024

Handbook of Curatives and Crosslinkers

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Crosslinking of polyimide atomic-layer-deposited on polyethersulfone membranes for synergistically enhanced performances

Cited by 14 publications

References 33 publications

The Preparation of a Novel Hyperbranched Antifouling Material and Application in the Protection of Marine Concrete

The Preparation of a Novel Hyperbranched Antifouling Material and Application in the Protection of Marine Concrete

Atomic layer deposition fabricating of ceramic nanofiltration membranes for efficient separation of dyes from water

Effect of Crosslinkers on Properties

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