Wrinkle‐resistant cotton by photoinitiated reaction with glycidyl methacrylate followed by crosslinking reactions

Reinhardt, Robert M.; Arthur, Jett C.; Muller, Linda L.

doi:10.1002/app.1980.070250519

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…The chemical initiator used, CAN, is soluble in water but the monomer GMA is reported to be soluble in the presence of methanol in the aqueous bath. Although many researchers have used a 50 : 50 methanol : water mixture for grafting, [24][25][26] the literature reports the maximum graft add-on in purely aqueous medium for grafting of GMA onto cellulose. 7,27 In this work, therefore, a pure aqueous grafting medium was used and the monomer GMA was maintained in an emulsified condition by constant magnetic stirring.…”

Section: Graft Copolymerizationmentioning

confidence: 99%

Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization

Tyagi

Tomar

Singh

2008

J of Applied Polymer Sci

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Graft copolymerization of glycidyl methacrylate (GMA) onto cellulose filter paper (CFP) was carried out by a free-radical initiating process using ceric ammonium nitrate (CAN) as an initiator. Optimum conditions pertaining to different grafting percentages were evaluated as a function of monomer and initiator concentrations, polymerization time and temperature. CFP with various graft levels of GMA was characterized by fourier transform infrared (FTIR) spectroscopy and thermo gravimetric analysis (TGA). Surface morphology of ungrafted and grafted CFP was evaluated by scanning electron microscopy (SEM). Attenuated total reflectance (ATR)-FTIR spectral analysis provided the evidence of grafting of GMA onto CFP. The maximum grafting of 102% was achieved by using 4 Â 10 À3 molL À1 CAN and 5% of GMA (w/v) monomer at 60 C in 25 min. The CFP-g-GMA surfaces with different graft levels were evaluated as a support for immobilization of biomolecules. Urease was selected as the model enzyme to be covalently coupled through the surface epoxy groups of the CFP-g-GMA discs. Immobilized discs were further studied for urea estimation and their reusability. Although the highest degree of urease immobilization was observed at 100% (162-lg urease/disc) graft level, the urease immobilized on discs with 70% (105-lg urease/disc) graft level gave the maximum activity of the enzyme.

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Section: Graft Copolymerizationmentioning

confidence: 99%

Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization

Tyagi

Tomar

Singh

2008

J of Applied Polymer Sci

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“…'Padded fabric was heat-cured for 180 s at 423 K and washed in absence of NMA. B There is little improvement in conditioned WRA (wrinkle-recovery angle) resulting from uv radiation of fabric in presence of N MA with only nominal heat developed during irradiation [11,13]. Nor is there much change in breaking strength under those,conditions.…”

mentioning

confidence: 91%

“…The application of reagents for flameresistant and wrinkle-resistant finishes has received much attention. Laboratory processes have been developed for both types of finishes [5,[10][11][12][13][14], with the flame-resistant process being adapted to a scaled-up continuous process [6]. The processes are based upon photo-initiated free-radical reactions between cellulose and free-radical reactive monomers, oligomers, etc.…”

Section: Introductionmentioning

confidence: 99%

Pilot-Scale Process for Photo-Initiated Modification of Cotton in the Preparation of Durable-Press Fabrics

Harris

Reinhardt

1981

Textile Research Journal

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A continuous process for the modification of cotton fabrics by photo-initiated copolymerization with N-methylolacrylamide for the preparation of durable-press textiles was investigated. Cotton fabrics were padded with aqueous N-methylolacrylamide solutions and passed through a photochemical reactor at various speeds. The exposure of these monomer-impregnated cotton fabrics to ultraviolet radiation initiated free-radical reactions on the cellulose molecules to give permanently modified cotton textiles. The effects of fabric speed through the reactor, lamp wattage, monomer concentration in aqueous solution, type of crosslinking catalyst, catalyst concentration, use of and concentration of DMDHEU, irradiation of both dry and pad-wet fabrics, one-side and two-side exposures, and heat build-up within the reactor on the efficiency of conversion of monomer to polymer add-on were determined. The effect of heat treatment after irradiation also was investigated. Durable-press ratings were determined on these modified, crosslinked fabrics, with some textile properties being determined on selected samples. Microscopic examination of the modified printcloth by transmission electron microscopy indicated a uniform deposition of polymer throughout the fibrous cross section. ' .

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“…Even today, DMDHEU is the main cross-linking agent. With magnesium chloride as the acid catalyst to initiate a reaction, it forms cross-links in the amorphous regions of the fiber [15][16][17][18][19][20][21]. Through the reaction (>NCH 2 = >NH + HCHO), free formaldehyde is released.…”

Section: Introductionmentioning

confidence: 99%

Single-stage antimicrobial and crease proof finishing of cotton materials

Perumalraj

2012

Journal of Industrial Textiles

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A study of single-stage antimicrobial and crease proof finishing of cotton materials has been reported. The bleached and reactive dyed cotton woven fabrics have been selected for this finishing process. The various concentrations of DMDHEU and triclosan and temperature have been selected to analyze the crease recovery and antimicrobial properties of fabric using Box-Behnken design. It was observed that increasing the concentration of DMDHEU and triclosan increases the crease recovery angle. It is also observed that the breaking strength retention properties have been reduced when increasing the concentration of DMDHEU and triclosan and temperature. It is also found that the antimicrobial effect was increased when the concentration of DMDHEU and triclosan increased.

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Wrinkle‐resistant cotton by photoinitiated reaction with glycidyl methacrylate followed by crosslinking reactions

Cited by 9 publications

References 9 publications

Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization

Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization

Pilot-Scale Process for Photo-Initiated Modification of Cotton in the Preparation of Durable-Press Fabrics

Single-stage antimicrobial and crease proof finishing of cotton materials

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