A facile approach toward multi-functional polyurethane/polyethersulfone composite membranes for versatile applications

Wang, Rui; Xiang, Tao; Zhao, Weifeng; Zhao, Changsheng

doi:10.1016/j.msec.2015.10.058

Cited by 37 publications

(15 citation statements)

References 41 publications

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“…In recent years, nano silver has found many novel and facile synthesis methods. Ag nanoparticles have been immobilized onto hollow fiber membranes which are used to improve antibacterial properties [10]. Ag nanoparticles have also been used in combination with carboxybetaine functional composite membranes to endow them antibacterial and antifouling properties [11].…”

Section: Introductionmentioning

confidence: 99%

Thermosensitive Behavior and Super-Antibacterial Properties of Cotton Fabrics Modified with a Sercin-NIPAAm-AgNPs Interpenetrating Polymer Network Hydrogel

et al. 2018

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Poly(N-isopropylacrylamide) (PNIPAAm), sericin (SS), and silver nitrate were combined to prepare an interpenetrating network (IPN) hydrogel having dual functions of temperature sensitivity and antibacterial properties. The structure and size of AgNPs in such an IPN hydrogel were characterized by the Fourier Transform Infrared spectrum (FT-IR), X-ray powder diffraction (XRD) and Transmission Electron Microscope (TEM), and the thermal properties of the IPN hydrogel were characterized by Differential Scanning Calorimetry (DSC). Based on XRD patterns, Ag+ was successfully reduced to Ag0 by SS. It was observed by TEM that the particle size of silver particles was lower than 100 nm. The glass transition temperature (Tg) of IPN hydrogel was better than that of the PNIPAAm/AgNPs hydrogels, and lower critical solution temperature (LCST) values of the IPN hydrogel were obtained by DSC i.e. 31 °C. The thermal stability of the IPN hydrogel was successfully determined by the TGA. This IPN hydrogel was then used to modify the cotton fabrics by the “impregnation” method using glutaraldehyde (GA) as the cross-linking agent. The structures and properties of IPN hydrogel modified cotton fabric were characterized by scanning electron microscopy (SEM), FT-IR, and the thermogravimetry analysis (TGA). The results show that NIPAAm was successfully polymerized into PNIPAAm, and that there were neglected new groups in the hydrogel IPN. The IPN hydrogel was then successfully grafted onto cotton fabrics. SEM observations showed that the IPN hydrogel formed a membrane structure between the fibers, and improved the compactness of the fibers. At the temperature close to LCST (≈31 °C), the entire system was easily able to absorb water molecules. However, the hydrophilicity tended to decrease when the temperature was higher or lower than the LCST. The antibacterial rates of the modified cotton fabric against S. aureus and E. coli were as high as 99%.

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Section: Introductionmentioning

confidence: 99%

Thermosensitive Behavior and Super-Antibacterial Properties of Cotton Fabrics Modified with a Sercin-NIPAAm-AgNPs Interpenetrating Polymer Network Hydrogel

et al. 2018

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“…For instance, to combine various functions in PES membranes, 4,4 0 -diphenylmethane diisocyanate has been used as the hard segment to enhance the miscibility between PU and PES, and N-methyldiethanolamine (containing a tertiary amino group) has been used as the soft segment. 630 After blending tertiary amino-terminated PU with PES, the composite membrane exhibits outstanding adsorption capability of toxic bilirubin (over 20 mg g À1 ). By simply functionalizing the tertiary amino group, the membrane bearing zwitterionic PU exhibited excellent blood compatibility; with quaternary ammonium salts, it exhibited antibacterial property.…”

Section: Polyethersulfone (Pes) Membranes For Blood Purification and mentioning

confidence: 99%

Advanced functional polymer materials

Wang¹,

Amin²,

An³

et al. 2020

Mater. Chem. Front.

146

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“…The protein adsorption behavior of PES membranes was carried out according to our previous study [10]. The protein adsorption, platelet adhesion, clotting times (activated partial thromboplastin times (APTTs) and thrombin times (TTs)), platelet activation (Human Platelet Factor 4 (PF4)), coagulation activation (thrombin-antithrombin III complex (TAT)), and complement activation (C3a and C5a) of PES membranes were…”

Section: Blood Compatibility Of Membranesmentioning

confidence: 99%

“…Simple alterations of stoichiometry and/or monomers during the synthesis of PUs can produce various materials ranging from elastic thermoplastic polymers to rigid thermoset ones [9]. Besides these, a facile modification of pendent groups of PU can result in a broad spectrum of properties ranging from removing toxin bilirubin to antibacterial properties [10]. However, a limitation of low resistance to thrombi is still associated with these biomaterials that restricted their uses as blood-contacting materials.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Polyethersulfone Membrane Design via Blending with Functional Polyurethane

Han

Liu

et al. 2017

International Journal of Polymer Science

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Polyurethanes (PUs) are currently considered to be biocompatible materials but limited by a low resistance to thrombus. We therefore design a heparin-like PU (HLPU) to modify polyethersulfone (PES) membranes approaching integrated antifouling and antithrombotic properties by bioinspiration of heparin structure. Poly(vinyl pyrrolidone)-HLPU (PVP-HLPU) was synthesized via reversible addition-fragmentation chain transfer polymerization of VP using PU as a macroinitiator and then sulfonated by concentrated H2SO4. FTIR and NMR results demonstrated the successful synthesis of PVP-HLPU. By incorporation of PVP-HLPU, the cross-sectional structure of PES composite membranes altered from finger-like structure to sponge-like structure resulting in tunable permeability. The increased hydrophilicity verified by water contact angles benefited both the permeability and antifouling property. As a consequence, the composite membranes showed good blood compatibility, including decreased protein adsorption, suppressed platelet adhesion, lowered thrombin-antithrombin III generation, reduced complement activation, and prolonged clotting times. Interestingly, the PVP-capped HLPU showed better blood compatibility compared to polyethyleneglycol-capped and citric acid-capped HLPUs. The results demonstrated the enhanced antifouling and antithrombotic properties of PES hemodialysis membranes by the introduction of functional HLPUs. Also, the proposed method may forward the fabrication of hemocompatible membranes via bioinspired surface design.

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A facile approach toward multi-functional polyurethane/polyethersulfone composite membranes for versatile applications

Cited by 37 publications

References 41 publications

Thermosensitive Behavior and Super-Antibacterial Properties of Cotton Fabrics Modified with a Sercin-NIPAAm-AgNPs Interpenetrating Polymer Network Hydrogel

Thermosensitive Behavior and Super-Antibacterial Properties of Cotton Fabrics Modified with a Sercin-NIPAAm-AgNPs Interpenetrating Polymer Network Hydrogel

Advanced functional polymer materials

Bioinspired Polyethersulfone Membrane Design via Blending with Functional Polyurethane

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