Polypyrrole vapor phase polymerization on PVDF membrane surface for conductive membrane preparation and fouling mitigation

2017 ◽  
Vol 93 (3) ◽  
pp. 683-689 ◽  
Author(s):  
Jiadong Liu ◽  
Chang Tian ◽  
Jingxue Xiong ◽  
Bo Gao ◽  
Shaonan Dong ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Membrane Surface ◽  
Membrane Preparation ◽  
Pvdf Membrane ◽  
Fouling Mitigation ◽  
Conductive Membrane ◽  
Vapor Phase Polymerization

scholarly journals Preparation of alkali-resistant PVDF membranes via immobilization of sodium lauryl sulfate (SDS) on surface

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Gongpu Wen ◽  
Kun Chen ◽  
Yanhong Zhang ◽  
Yue Zhou ◽  
Jun Pan ◽  
...  
Keyword(s):  
Sodium Lauryl Sulfate ◽  
Alkali Treatment ◽  
Membrane Surface ◽  
Alkali Resistance ◽  
Lauryl Sulfate ◽  
Uv Curable ◽  
Pvdf Membrane ◽  
Glycol Diacrylate ◽  
Polyester Acrylate ◽  
Uv Curable Resin

AbstractA novel strategy was proposed to fabricate alkali-resistant PVDF membrane via sodium lauryl sulfate (SDS) attached to the surface of membrane and immobilized by UV-curable polyester acrylate and tri(propylene glycol) diacrylate (TPGDA). The attached anionic surfactant, SDS, on the membrane surface can resist the alkali corrosion by NaOH, and the curing of the resin can immobilize the SDS on the membrane firmly. Due to the unique alkali resistance of SDS and resin formed, the UV-curable resin-modified PVDF membrane showed greatly enhanced alkali-resistant ability. Characterization of SEM and FTIR showed that polyester acrylate and TPGDA were cured successfully under the action of 1-hydroxycyclohexyl phenyl ketone (184) and ultraviolet light. Whiteness, differential scanning calorimeter and X-ray photoelectron spectrometer characterization showed that the modified PVDF membrane had a lower degree of dehydrofluorination than the pristine PVDF membrane after alkali treatment. Results of the detailed alkali-resistant analysis indicated that the F/C ratio of the UV-curable resin-modified PVDF membrane decreased by 2.6% after alkali treatment compared to pristine PVDF membrane decreased by 19.28%. The alkali-resistant performance was mainly attributed to the immobilized SDS. This study provided a facile and scalable method for designing alkali-resistant PVDF membrane, which shows a promising potential in the treatment of alkaline wastewater and alkaline-cleaning PVDF membrane.

scholarly journals Inkjet printing and vapor phase polymerization: patterned conductive PEDOT for electronic applications

2013 ◽  
Vol 1 (20) ◽  
pp. 3353 ◽  
Author(s):  
Robert Brooke ◽  
Drew Evans ◽  
Maik Dienel ◽  
Pejman Hojati-Talemi ◽  
Peter Murphy ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Inkjet Printing ◽  
Vapor Phase Polymerization

Vapor-Phase Polymerization of PEDOT for Wearable Fabric Pressure Sensors

2022 ◽  
Author(s):  
Yi He ◽  
Ying Li ◽  
Ying Yuan ◽  
Jun Shu ◽  
Xiaoyan Deng ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Pressure Sensors ◽  
Vapor Phase Polymerization

Vapor Phase Polymerization of Pyrrole and Thiophene Using Iron(III) Sulfonates as Oxidizing Agents

2004 ◽  
Vol 37 (16) ◽  
pp. 5930-5935 ◽  
Author(s):  
Bjørn Winther-Jensen ◽  
Jun Chen ◽  
Keld West ◽  
Gordon Wallace
Keyword(s):  
Vapor Phase ◽  
Oxidizing Agents ◽  
Vapor Phase Polymerization

scholarly journals Flexible ZnO/PANI/nonwoven nanocomposite based high-sensitive NH3 gas sensor via vapor phase polymerization method

2020 ◽  
Vol 3 ◽  
pp. 862-867
Author(s):  
Ying Guan ◽  
Chuang Wang ◽  
Houyong Yu ◽  
Zhuanyong Zou ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Vapor Phase ◽  
Vapor Phase Polymerization ◽  
Polymerization Method

Development of polyaniline conductive membrane for electrically enhanced membrane fouling mitigation

2019 ◽  
Vol 570-571 ◽  
pp. 371-379 ◽  
Author(s):  
Kunpeng Wang ◽  
Lili Xu ◽  
Kuiling Li ◽  
Lie Liu ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Fouling Mitigation ◽  
Conductive Membrane ◽  
Electrically Enhanced

scholarly journals The Modification of PVDF Membrane via Crosslinking with Chitosan and Glutaraldehyde as the Crosslinking Agent

2018 ◽  
Vol 18 (1) ◽  
pp. 1
Author(s):  
Romaya Sitha Silitonga ◽  
Nurul Widiastuti ◽  
Juhana Jaafar ◽  
Ahmad Fauzi Ismail ◽  
Muhammad Nidzhom Zainol Abidin ◽  
...  
Keyword(s):  
Contact Angle ◽  
Vinylidene Fluoride ◽  
Membrane Surface ◽  
Pure Water ◽  
Water Flux ◽  
Crosslinking Agent ◽  
Hydrophobic Properties ◽  
Pvdf Membrane ◽  
Pure Water Flux ◽  
Modified Membrane

Poly(vinylidene fluoride) (PVDF) has outstanding properties such as high thermal stability, resistance to acid solvents and good mechanical strength. Due to its properties, PVDF is widely used as a membrane matrix. However, PVDF membrane is hydrophobic properties, so as for specific applications, the surface of membrane needs to be modified to become hydrophilic. This research aims to modify PVDF membrane surface with chitosan and glutaraldehyde as a crosslinker agent. The FTIR spectra showed that the modified membrane has a peak at 1655 cm-1, indicating the imine group (–N=C)- that was formed due to the crosslink between amine group from chitosan and aldehyde group from glutaraldehyde. Results showed that the contact angle of the modified membrane decreases to 77.22° indicated that the membrane hydrophilic properties (< 90°) were enhanced. Prior to the modification, the contact angle of the PVDF membrane was 90.24°, which shows hydrophobic properties (> 90°). The results of porosity, Ɛ (%) for unmodified PVDF membrane was 55.39%, while the modified PVDF membrane has a porosity of 81.99%. Similarly, by modifying the PVDF membrane, pure water flux increased from 0.9867 L/m2h to 1.1253 L/m2h. The enhancement of porosity and pure water flux for the modified PVDF membrane was due to the improved surface hydrophilicity of PVDF membrane.

scholarly journals Correction: Self-supported Co3O4 nanoneedle arrays decorated with PPy via chemical vapor phase polymerization for high-performance detection of trace Pb2+

2017 ◽  
Vol 9 (16) ◽  
pp. 2472-2472 ◽  
Author(s):  
Wenjing Wang ◽  
Chao Wang ◽  
Peng Dou ◽  
Lifang Zhang ◽  
Jiao Zheng ◽  
...  
Keyword(s):  
Vapor Phase ◽  
High Performance ◽  
Chemical Vapor ◽  
Vapor Phase Polymerization

Correction for ‘Self-supported Co3O4 nanoneedle arrays decorated with PPy via chemical vapor phase polymerization for high-performance detection of trace Pb2+’ by Wenjing Wang et al., Anal. Methods, 2017, 9, 1905–1911.

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