Pervaporation separation of water-acetic acid mixtures through poly(vinyl alcohol) membranes crosslinked with glutaraldehyde

Yeom, C. K.; Lee, Kew‐Ho

doi:10.1016/0376-7388(95)00196-4

Cited by 344 publications

(124 citation statements)

References 8 publications

Supporting

Mentioning

123

Contrasting

Unclassified

Order By: Relevance

“…Sci. 2017, 7, 291 2 of 8 polymers [13,14]. Throughout the process of sample preparation, sodium dodecyl sulfate (SDS) is used as a good dispersing agent for HNTs in aqueous solution [15,16].…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

See 1 more Smart Citation

Surface Improvement of Halloysite Nanotubes

et al. 2017

View full text Add to dashboard Cite

A novel development on halloysite-polyvinyl alcohol (HNTs-PVA) nanocomposites has been conducted using malonic acid (MA) by crosslinking PVA and HNTs. PVA-MA crosslinking produces smooth surfaces, which play an important role in enhancing the properties of HNTs-PVA nanocomposite. The crystallographic structures of crosslinked HNTs-PVA show almost no change as depicted by the X-ray diffraction (XRD)-2θ-peak, suggesting that MA has no or little influence on the crystallographic structure of the HNTs-PVA. Images taken by field emission scanning electron microscope (FESEM) suggest possible effects of MA on the morphology and internal features of HNTs-PVA by reducing the agglomeration of HNTs, which is considered a decisive step in improving the surface qualities of HNTs. Investigating the samples using the Brunauer-Emmelt-Teller (BET) technique showed that the surface area was increased by about 10 times, reaching the second highest recorded results compared to the HNTs, which could be considered a breakthrough step in enhancing the properties of HNTs-PVA due to MA crosslinking.

show abstract

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

“…The thermoplastic polymers, such as PVA, are also biocompatible polymers that are widely used in industry for films, paper, and adhesive coating due to their attractive properties [11,12]. Crosslinking has been utilized to improve the thermo-physical properties including the solubility of many polymers [13,14].…”

Section: Introductionmentioning

confidence: 99%

Surface Improvement of Halloysite Nanotubes

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The crosslinking technique is normally used to improve the mechanical and thermal properties in addition to improve the solubility of many polymers (Yeom & Lee 1996;Zhang et al 2010). In addition to PVA as a crosslinker, glyoxal glutaraldehyde is the other universally crosslinker for polymers that primarily contain amine groups such as proteins (Yeom & Lee 1996;Zhang et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Halloysite Nanotubes-Polyvinyl Alcohol Nanocomposites Using Malonic Acid Crosslinked

Gaaz¹,

Hussein²,

Al-Amiery³

2017

JKUKM

View full text Add to dashboard Cite

show abstract

“…Films were cut into strips of (2 x 2) cm 2 and immersed in distilled water for 48 hours, at 40 °C (Yeom and Lee, 1996). Then, the swollen size, l w , was recorded and the strips were placed in a desiccator, at 25 °C, in vacuo, until constant weight, when the dried membrane size, l d , was measured.…”

Section: Water Swellingmentioning

confidence: 99%

Myoglobin entrapment in poly(vinyl alcohol) dense membranes

Figueiredo

Alves

Borges

2014

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-Our goal in this study was the immobilization of myoglobin in poly(vinyl alcohol) dense membranes. Glutaraldehyde was investigated both as the crosslinking agent, aiming to increase the membrane stability in aqueous medium, and as the vehicle to bind myoglobin and PVA. Reaction and membrane synthesis were carried simultaneously in mild operating conditions in order to maintain the native protein folding. Membrane characterization comprised the water swelling degree, DSC, TGA, UV-visible spectroscopy, FTIR analysis and oxygen transport in a dialysis cell. The incorporation of myoglobin in the film decreased the water swelling degree and improved the membrane thermal properties compared to unmodified PVA membrane. The reduction of ferric iron in the prosthetic group of the protein to the ferrous form was observed. The increased affinity between oxygen and the immobilized myoglobin did not favor the release of this solute from the biocarrier.

show abstract

Pervaporation separation of water-acetic acid mixtures through poly(vinyl alcohol) membranes crosslinked with glutaraldehyde

Cited by 344 publications

References 8 publications

Surface Improvement of Halloysite Nanotubes

Surface Improvement of Halloysite Nanotubes

Physical Properties of Halloysite Nanotubes-Polyvinyl Alcohol Nanocomposites Using Malonic Acid Crosslinked

Myoglobin entrapment in poly(vinyl alcohol) dense membranes

Contact Info

Product

Resources

About