Journal ArticleDOI
Kinetics of swelling assisted grafting of 4-vinyl pyridine onto poly(ethylene terephthalate) fibers using a benzoyl peroxide initiator
TLDR
In this paper, poly(ethylene terephthalate) (PET) fibers were grafted with 4-vinyl pyridine (4-VP) using benzoyl peroxide (Bz2O2) as the initiator.Abstract:
Poly(ethylene terephthalate) (PET) fibers were grafted
with 4-vinyl pyridine (4-VP) using benzoyl peroxide
(Bz2O2) as
initiator. Fibers were swelled in dichloroethane (DCE) for 2 h
at 90 °C to promote the incorporation and the subsequent
polymerization of 4-VP onto PET fibers. Variations of graft
yield with time, temperature, initiator and monomer
concentrations were investigated. Percent grafting was enhanced
significantly by increasing
Bz2O2
concentration up to 2 × 1 0
-3 mol/L and then decreased upon
further increase in initiator concentration. Increasing the 4-VP
concentration up to 0.6 mol/L improves the graft yield
significantly. The optimum temperature and polymerization time
was found to be 50 °C and 2 h respectively. Further changes in
properties of grafted PET fibers such as moisture absorption
capacity and intrinsic viscosity were determined. Grafted PET
fibers were charactarized by thermogravimetric analysis and
scanning electron microscopy (SEM). Molar mass of the grafted
chains was also determined.read more
Citations
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Journal ArticleDOI
Modification and characterization of PET fibers for fast removal of Hg(II), Cu(II) and Co(II) metal ions from aqueous solutions
Mohamed Monier,D.A. Abdel-Latif +1 more
TL;DR: It is expected that PET-TSC could be used as a promising adsorbent for fast removal of heavy metal ions from water, and the present work might provide a simple and effective method to reuse the waste PET fibers.
Journal ArticleDOI
Studies on the activity and stability of immobilized horseradish peroxidase on poly(ethylene terephthalate) grafted acrylamide fiber.
TL;DR: Modified poly(ethylene terephthalate) grafted acrylamide fiber was used for the immobilization of horseradish peroxidase (HRP) and showed higher storage stability than the free HRP and the immobilized HRP.
Journal ArticleDOI
Selective removal of Cr(VI) ions from aqueous solutions including Cr(VI), Cu(II) and Cd(II) ions by 4-vinly pyridine/2-hydroxyethylmethacrylate monomer mixture grafted poly(ethylene terephthalate) fiber.
Mustafa Yiğitoğlu,Metin Arslan +1 more
TL;DR: It was found that the grafted fiber is more selective for Cr(VI) ions in the mixed solution of Cr (VI)-Cu(II), Cr( VI)-Cd(II) and Cr(vi)-Cu-Cd-II -Cd (II) at pH 3 and it was observed that thegrafted fibers are stable and regenerable by acid and base without losing their activity.
Journal ArticleDOI
Adsorption of hexavalent chromium from aqueous solutions using 4-vinyl pyridine grafted poly(ethylene terephthalate) fibers
Mustafa Yiğitoğlu,Metin Arslan +1 more
TL;DR: In this paper, the authors investigated the influence of adsorption time, pH of solution and Cr(VI) concentration on the adsorbed amount of poly(ethylene terephthalate) (PET) fibers.
Journal ArticleDOI
Immobilization horseradish peroxidase on amine-functionalized glycidyl methacrylate-g-poly(ethylene terephthalate) fibers for use in azo dye decolorization
TL;DR: The HRP immobilized on modified PET fibers were very effective for removal of azo dye from aqueous solutions and pH, temperature, thermal stability, and reusability were investigated.
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