A Study of Reactions between Cotton Cellulose and Difunctional Epoxides

Benerito, Ruth R.; Webre, Beverly G.; McKelvey, John B.

doi:10.1177/004051756103100901

Cited by 16 publications

(4 citation statements)

References 7 publications

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“…The fabric employed was a desized, caustic-boiled and bleached 80 X 80 white cotton print cloth, 3.2 oz./yd.~ 2 Treatments, in general, were carried out as follows. A swatch of fabric was padded with a solution of the epoxide and curing agent to a wet pickup of about 8070.…”

Section: Methodsmentioning

confidence: 99%

The Use of Coreactant Curing Agents with a Diepoxide to Impart Wrinkle Resistance to Cotton Fabrics

Reinhardt

Kullman

Moore

et al. 1961

Textile Research Journal

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Wrinkle resistance can be imparted to cotton fabrics with a diepoxide when certain coreactant curing agents are used. Such materials coreact to become a part of the finished product and introduce linkages and chemical groups which differ from those obtained when a true catalyst is used. Several coreactants including, for example. phthalic anhydride, citric acid, 1-aminoethyl-2-methyl-imidazoline, triethanolamine, and potassium thiocyanate, were used with 1,3-diglycidylglycerol as the diepoxide. In some cases mere deposition seemed to occur while in other cases cross-linkage was accomplished. Some indications of the types of reaction were obtained from infrared data and from the responses of the treated fabrics to various classes of dyes. In some cases coreaction between the diepoxide and the curing agent appeared to take place at relatively low temperatures, producing improved wrinkle resistance. Phthalic anhydride was used to investigate this aspect in more detail.For comparison with the coreactant materials, several acid salts were used as catalysts, and the results are reported. Among the more suitable acid catalysts are magnesium perchlorate, aluminum sulfate, and zinc fluoborate.The inorganic acid catalysts produced fabrics with excellent durability and wrinkle resistance. Tearing strength losses, however, were greater with epoxide-treated cotton than those observed, at equivalent crease recovery angle, when a typical methylolamide finishing agent with catalyst was used. The durability to alkaline solutions of some of the epoxide finishes applied with coreactant curing agents was not as good as that of fabrics prepared with the inorganic acid catalysts. Tearing strength and wrinkle resistance of epoxide-treated cotton can be improved by inclusion of additives such as polvethylene, acrylic polymer, or silicone, in the finishing bath.

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Section: Methodsmentioning

confidence: 99%

The Use of Coreactant Curing Agents with a Diepoxide to Impart Wrinkle Resistance to Cotton Fabrics

Reinhardt

Kullman

Moore

et al. 1961

Textile Research Journal

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“…Although reactions of cellulose and diglycidyl ethers had been intensively examined in the 1960s in the context of crease recovery of cotton clothing [14][15][16][17][18], no kinetic data on these reactions have been reported so far and comparison with literature values therefore turned out to be difficult. Nevertheless, the apparent activation energies found in this study are in good agreement with those reported by Rodrı ´guez et al [19] who investigated the cross-linking of cationic hydroxyethyl cellulose hydrogels with ethylene glycol diglycidyl ether, the monomeric homologue of PEGDE.…”

Section: Influence On Activation Energymentioning

confidence: 99%

Kinetic Parameters of the Cross‐linking Reaction of Cellulose Membranes with Bifunctional Epoxides

Ruhr

Reiche

2022

Chemie Ingenieur Technik

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Kinetic parameters of the cross-linking reaction of porous cellulose membranes with aqueous solutions of two different diglycidyl ethers were determined by dynamic DSC experiments. The autocatalytic reaction behavior was described with an extended Prout-Tompkins equation. Kinetic analysis revealed a similar kinetic behavior for both diglycidyl ethers, with an apparent activation energy of 45-65 kJ mol -1 and a reaction order between 0.9 and 1.5, suggesting a transition from one to another dominant reaction mechanism when the composition of the cross-linking solution is changed. Conversion curves based on the kinetic analysis serve as a basis for the design and optimization of a continuously running process for the industrial-scale production of cross-linked cellulose membranes.

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“…Attempts were made to increase the nitrogen content of these cellulose exchangers by varying the mole ratios of reactants. Previously [3], for various diepox,ides. it was reported that for a,given epoxide: Zn ( 1%F4 > mole ratio, the add-on of various diepoxides increased as the anhydroglticose unit ( AGU ) : Zii(BF4 )1 mole ratio decreased.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Properties of Anion-Exchange Cottons in Fabric Form

Soignet

Berni

Benerito

1966

Textile Research Journal

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The effects of the substitution of various types of amino groups in cotton on the crease recovery properties have been investigated. The potentiometric titration curves of the various aminized cottons have been used to differentiate the presence of quaternary ammonium groups (strong-base anion exchangers) from the presence of primary, secondary, or tertiary amino groups (weak-base anion exchangers). Weak-base anion exchange cottons have been quaternized by treatment of cotton containing tertiary amine groups with methyl iodide and with epichlorohydrin. In addition, strong-base exchangers have been prepared directly by a one-step process in which cotton pretreated with a base is reacted with a mixture of epichlorohydrin and a tertiary amine at a 3: 1 molar ratio. Weak-base aminized cottons containing primary amino groups have been reacted with epichlorohydrin in the presence of an aqueous base to form cottons of improved dry-and high wet-crease resistance. Only those quaternized cottons prepared from the reaction of pure epichlorohydrin on cottons containing tertiary amine groups possessed both high dry-and improved wet-crease recovery properties. Equations are given to illustrate types of reactions investigated and mechanisms of reactions.

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A Study of Reactions between Cotton Cellulose and Difunctional Epoxides

Cited by 16 publications

References 7 publications

The Use of Coreactant Curing Agents with a Diepoxide to Impart Wrinkle Resistance to Cotton Fabrics

The Use of Coreactant Curing Agents with a Diepoxide to Impart Wrinkle Resistance to Cotton Fabrics

Kinetic Parameters of the Cross‐linking Reaction of Cellulose Membranes with Bifunctional Epoxides

Comparison of Properties of Anion-Exchange Cottons in Fabric Form

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