Polyvinyl alcohol hydrogel-supported forward osmosis membranes with high performance and excellent pH stability

2021 ◽  
Author(s):  
Dal Yong Kim ◽  
Hosik Park ◽  
You-In Park ◽  
Jung-Hyun Lee
Keyword(s):  
Polyvinyl Alcohol ◽  
High Performance ◽  
Forward Osmosis ◽  
Ph Stability

Development and Validation of a Novel Reversed Phase High Performance Liquid Chromatography with Refractive Index Detector Method for Assay of Polyvinyl Alcohol in an Ophthalmic Solution

2020 ◽  
Vol 16 (7) ◽  
pp. 867-871
Author(s):  
Harun Ergen ◽  
Muge Guleli ◽  
Cigdem Sener ◽  
Cem Caliskan ◽  
Sercan Semiz ◽  
...  
Keyword(s):  
Refractive Index ◽  
Liquid Chromatography ◽  
Polyvinyl Alcohol ◽  
High Performance ◽  
Ophthalmic Solution ◽  
Reversed Phase ◽  
Hplc Method ◽  
Solution Stability ◽  
Technical Requirements ◽  
Refractive Index Detector

Introduction: Polyvinyl alcohol (PVA), a polymer, is in demand due to its usage in different applications such as pharmaceutical, biomedical and textile, paper, food industries. Methods: A new sensitive reversed phased high-pressure liquid chromatography (RP-HPLC) method with refractive index detector (RID) was developed for determination of PVA in an ophthalmic solution containing dexpanthenol and PVA as active substances and it was validated according to The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guideline. Results: Chromatographic separation was achieved on a Chiral-AGP (150 mm × 4.0 mm, 5 μm) column kept at 30°C with an isocratic flow at a flow rate of 1.0 ml/min. The detector temperature was 30°C, the retention time of PVA was around 1.0 min and the total run time was 5 minutes. Conclusion: The proposed method showed linearity, accuracy, precision, specificity, robustness, solution stability, and system suitability results within the acceptance criteria.

A redox mediator doped gel polymer as an electrolyte and separator for a high performance solid state supercapacitor

2015 ◽  
Vol 3 (7) ◽  
pp. 4035-4041 ◽  
Author(s):  
Guofu Ma ◽  
Miaomiao Dong ◽  
Kanjun Sun ◽  
Enke Feng ◽  
Hui Peng ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Sulfuric Acid ◽  
Solid State ◽  
Polyvinyl Alcohol ◽  
High Performance ◽  
Indigo Carmine ◽  
Polymer System ◽  
Redox Mediator ◽  
Gel Electrolyte

A stable and effective redox-mediator gel electrolyte has been prepared by doping indigo carmine (IC) into a polyvinyl alcohol sulfuric acid polymer system (PVA–H2SO4), and a high performance solid state supercapacitor is fabricated by utilizing activated carbon as electrodes and the prepared gel polymer (PVA–H2SO4–IC) as an electrolyte and separator.

High-performance thin-film composite forward osmosis membrane fabricated on low-cost PVB/PVC substrate

2018 ◽  
Vol 42 (16) ◽  
pp. 13382-13392 ◽  
Author(s):  
Ke Zheng ◽  
Shaoqi Zhou ◽  
Xuan Zhou
Keyword(s):  
Thin Film ◽  
High Performance ◽  
Low Cost ◽  
Forward Osmosis ◽  
Film Composite ◽  
Thin Film Composite

The incorporation of the PVB significantly improved the performance of the PVB/PVC substrates based thin-film composite forward osmosis membrane.

High performance thin-film nanocomposite forward osmosis membrane based on PVDF/bentonite nanofiber support

2020 ◽  
Vol 86 ◽  
pp. 90-99 ◽  
Author(s):  
Aatif Ali Shah ◽  
Young Hoon Cho ◽  
Seung-Eun Nam ◽  
Ahrumi Park ◽  
You-In Park ◽  
...  
Keyword(s):  
Thin Film ◽  
High Performance ◽  
Forward Osmosis ◽  
Thin Film Nanocomposite

scholarly journals A multifunctional polyimide nanofiber separator with a self-closing polyamide–polyvinyl alcohol top layer with a Turing structure for high-performance lithium–sulfur batteries

2020 ◽  
Vol 1 (9) ◽  
pp. 3449-3459
Author(s):  
Xiang Luo ◽  
Xianbo Lu ◽  
Ya Chen ◽  
Xiaodong Chen ◽  
Hele Guo ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Dendrites ◽  
Lithium Sulfur

The development of commercial lithium–sulfur (Li–S) batteries is typically restricted by the intrinsic drawbacks of the dissolutiion and shuttling of lithium polysulfides (LPS) and the uncontrollable growth of lithium dendrites.

A pH-responsive supramolecular draw solute that achieves high-performance in arsenic removal via forward osmosis

2019 ◽  
Vol 165 ◽  
pp. 114993 ◽  
Author(s):  
Yanhuang Wu ◽  
Yan Liu ◽  
Rongzhen Chen ◽  
Wen-Hua Zhang ◽  
Qingchun Ge
Keyword(s):  
High Performance ◽  
Arsenic Removal ◽  
Forward Osmosis ◽  
Ph Responsive
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