Synthesis and characterization of sulfonated-poly(vinyl alcohol) membranes for the pervaporation dehydration of isopropanol
TL;DR: Using a solution technique, sulfonated-poly(vinyl alcohol) membranes were developed as pervaporation membranes by incorporating sulfophthalic acid (SPTA), and the physico-chemical properties of the resulting membranes were studied by Fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM).
About: This article is published in Journal of Membrane Science.The article was published on 2011-11-01. It has received 88 citations till now. The article focuses on the topics: Membrane & Pervaporation.
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TL;DR: In this article, the authors reviewed the research and development of polymeric pervaporation membranes from the perspective of membrane fabrication procedures and materials, and showed that the membrane is one of the crucial factors in determining the overall efficiency of separation process.
411 citations
TL;DR: In this article, a review suggests that the incorporation of additives such as plasticisers and fillers has proven potential to modify the physical and chemical properties of pristine and/or composite membranes.
183 citations
Cites background from "Synthesis and characterization of s..."
...[104] Rachipudi PS, Kariduraganavar MY, Kittur AA, Sajjan AM....
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...one of the major drawbacks in most water-soluble polymers due to the high water affinity that is formed between the water molecules and the membrane [104]....
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TL;DR: In this paper, a hollow fiber membrane consisting of a thin film composite (TFC) polyamide layer and a porous Torlon® polyamide-imide substrate has been fabricated via interfacial polymerization for pervaporation dehydration of isopropanol.
108 citations
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...microelectronic industries [1]....
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TL;DR: In this article, the functionalizations of poly(vinyl alcohol) congruent with the desired applications are discussed, and the incorporated modifying agents onto polyvinyl Alcohol matrixes brought some changes that were in tune with the projected applications.
Abstract: Functionalizations of poly(vinyl alcohol) congruent with the desired applications are discussed inthis article. The chemical modifications of poly(vinyl alcohol) with different molecular weights and hydrolysis degrees via conventional chemistries, namely esterification, carbamation, and etherification, and via the modern ones such as click chemistry, led to finished materials with a wide range of applications and uses: membrane fuel cells, biologicals and biomedicals, adsorption of heavy metals and other contaminants, molecular sensing or chemosensor for detection of some useful molecules or toxic ones, separation of mixtures, and catalysis in organic and inorganic syntheses. Different forms of the duly modified poly(vinyl alcohol)s were used in such applications, including hydrogels, films, membranes, and nanoparticles. The incorporated modifying agents onto poly(vinyl alcohol) matrixes brought some changes that were in tune with the projected applications. These modifying agents were not confined to mol...
70 citations
Additional excerpts
...11) for the pervaporative dehydration of isopropanol([97])....
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TL;DR: In this paper, mixed-matrix membranes (MMMs) on the basis of a hydrophilic polymer poly(vinyl alcohol) (PVA) and a metal-organic framework (MOF) with a thin and uniform polydopamine (PD) layer were prepared for separation of organic solvent from aqueous solutions by taking ethylene glycol (EG) as an example.
69 citations
References
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TL;DR: A survey of the available information on the environmental fate of polyvinyl alcohol (PVA) and PVA-based materials can be found in this paper, where the biochemistry and microbial physiology of PVA biodegradation and on the influence of environmental conditions are discussed along with the biodegrading processes of other water-soluble materials.
744 citations
TL;DR: The PVA/Sulfosuccinic acid (SSA)/silica hybrid polyvinyl alcohol (PVA)/SiO 2 hybrid membranes containing sulfonic acid groups were fabricated from different SSA contents.
407 citations
TL;DR: In this article, a solution method for the pervaporation separation of acetic acid-water mixtures was proposed, in which dry PVA films were crosslinked by immersion for two days at 40°C in reaction solutions which contained different contents of GA, acetone and a catalyst, HCl.
357 citations
TL;DR: In this paper, a cross-linked polyvinyl alcohol (PVA)/poly(acrylic acid) (PAA)/silica hybrid membranes were evaluated for use as a proton exchange membrane for direct methanol fuel cell (DMFC).
211 citations
TL;DR: Composite hydrophilic pervaporation membranes were prepared from chitosan blended with hydroxyethylcellulose using cellulose acetate as a porous support in this article.
161 citations