Graft copolymerization of cotton fabric with different vinyl monomers using ferrous cellulose thiocarbonate hydrogen peroxide redox system

El‐Rafie, M. H.; Khalil, E. M.; Abdel-Hafiz, S. A.; Hebeish, A.

doi:10.1002/actp.1985.010361213

Cited by 26 publications

(17 citation statements)

References 25 publications

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“…Cellulose macroradicals generated by redox initiation systems are immobile, and for grafting, the monomer should be in the vicinity of the cellulose. The higher monomer molecule near the immobile cellulose macroradical in the polymerization medium acts in favor of molecular collision, enhancing polymerization in general or homopolymer formation in particular 10, 11. The reduced graft yield percentage beyond a certain level suggested that the rate of homopolymer formation prevailed over graft formation at higher monomer concentrations.…”

Section: Resultsmentioning

confidence: 99%

Effect of grafting methacrylate monomers onto jute constituents with a potassium persulfate initiator catalyzed by Fe(II)

Mondal

Haque

2006

J of Applied Polymer Sci

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The graft copolymerization of methyl methacrylate and ethyl methacrylate monomers onto jute fiber was carried out in an aqueous medium with potassium persulfate as an initiator under the catalytic influence of ferrous sulfate in the presence of air. The effects of parameter variables, such as the monomer, initiator, and catalyst concentrations, the reaction time, and the temperature, on grafting and the effect of grafting the monomers onto jute constituents were studied. The degree of grafting depended on the kinds of monomers and the parameter variables.The maximum graft yield percentages with methyl methacrylate and ethyl methacrylate under optimized conditions were 18.9 and 38.8%, respectively, and the grafting onto jute fiber was largely affected by one of its main constituents, such as hemicellulose. The graft copolymers were characterized, and their improved properties were also examined.

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Section: Resultsmentioning

confidence: 99%

Effect of grafting methacrylate monomers onto jute constituents with a potassium persulfate initiator catalyzed by Fe(II)

Mondal

Haque

2006

J of Applied Polymer Sci

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“…To improve interactions between AgNPs and fabric constituents, the use of binders was proposed during the treatment procedure. [27] The cotton fabrics were immersed in AgNP solution with binder (printo ® FX based on acrylate) solution and repeated several times. The treated fabrics were then squeezed to 100% wet pick up at a constant pressure, dried at 70 C for 3 min, and followed by curing at 150 C for 2 min before use.…”

Section: Solution-immersionmentioning

confidence: 99%

Toward a comprehensive understanding of textiles functionalized with silver nanoparticles

Syafiuddin

2019

J Chinese Chemical Soc

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This article provides a comprehensive understanding of development of textiles functionalized with silver nanoparticles (AgNPs). There are three established methods to fabricate textiles functionalized with AgNPs, namely, solution‐immersion, layer‐by‐layer deposition, and sonochemical. In addition, several textile types such as cotton, wool, polyester, silk, cotton/polyester blend, polyamide, and regenerated cellulose have been used for the fabrication. The AgNP deposition mechanism on textiles is mainly due to electrostatic interaction between AgNPs and textile constituents. It was exhibited that the deposition of AgNPs on textiles can transform their textiles colors. In addition, it was demonstrated that the deposition of AgNPs on textiles is not permanent, particularly against washing treatment. Textiles modified with AgNPs have several promising applications such as antibacterial, antifungal, catalyst, electronic devices, water treatment, sun protection, air treatment, and surface‐enhanced Raman scattering, which are comprehensively discussed in this article. Future challenges in fabricating textiles functionalized with AgNPs remain on how this can be carried out to improve long‐term stabilization of AgNPs on textiles to achieve their permanent deposition by employing greener approaches.

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“…It was particularly broad in the case of the latter. El-Rafie et al 25 recently studied the influence of hydrazine hydrate, sodium sulfite, sodium hydrosulfite, thiourea dioxide, and sodium sulfite on the reaction initiated by the xanthated method. Among all these additives only hydrazine hydrate increased conversion (only 10% at hydrazine concentration 8 X mol/L).…”

Section: Influence Of Additivesmentioning

confidence: 98%

Grafting of vinyl monomers by the xanthate method

Graczyk¹

1988

J. Appl. Polym. Sci.

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SynopsisThe removal of oxygen from swollen pulp is very difficult. At least 1-2 h of purging with oxygen-free nitrogen or argon is required as well as efficient mixing and a low concentration of pulp (not higher than 1%). During the grafting reaction, in which the xanthate cellulose is a part of the redox system, the concentration of oxygen falls to zero and stabilizes at this level even if air is purged through the system or a higher rate of stirring is applied. Primary sulfur radicals created in the reaction of the xanthated groups with H,O, are further oxidized by H,O, or by particles of oxygen dissolved in the reaction mixture. The observed increase in reaction caused by an increase in stirring speed is due to the higher rate of diffusion of hydrophobic monomers as well as the diffusion of oxygen to active centers at high stirring speed. The low rate of grafting at lower agitation speeds is caused by agglomeration of monomer molecules to bigger particles and, as a result, decreased diffusion of monomer to active centers. Above 300 rpm, the effect of monomer diffusion diminishes and further increase in conversion is caused only by a higher rate of oxygen diffusion to active centers from reaction mixture or passing gas. However, above a certain level of oxygen, the effect of termination by oxygen prevails and the rate of reaction decreases. Additives increase the conversion in the lower range of agitation speed only. The application of additives and agitation are two equivalent methods, both of which lead to an increase in conversion in the lower range of stirring speed.

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Graft copolymerization of cotton fabric with different vinyl monomers using ferrous cellulose thiocarbonate hydrogen peroxide redox system

Cited by 26 publications

References 25 publications

Effect of grafting methacrylate monomers onto jute constituents with a potassium persulfate initiator catalyzed by Fe(II)

Effect of grafting methacrylate monomers onto jute constituents with a potassium persulfate initiator catalyzed by Fe(II)

Toward a comprehensive understanding of textiles functionalized with silver nanoparticles

Grafting of vinyl monomers by the xanthate method

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