Dialdehydes as Cotton Cellulose Cross-Linkers1

Hurwitz, Melvin D.; Conlon, Lawrence E.

doi:10.1177/004051755802800311

Cited by 28 publications

(5 citation statements)

References 4 publications

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“…Intensive research is therefore being carried out on the theoretical as well as the applied aspects of the problem. On the theoretical side these efforts have been directed towards understanding the cross-linking mechanism or the mode of reaction of the compounds with cellulose; determining the exact site and distribution of the cross-links [27] ; the existence of intervs, intramolecular links [22]; the nature, length, size, and diffusibility [12,33] of the cross-linking molecule; and the extent of cross-linking [7J in rela-tion to the state of the cellulose at the time of the reaction [4,16,26]. On the applied side, newer compounds [28,32,34] with greater reactivity and ease of application are being developed.…”

Section: Introductionmentioning

confidence: 99%

Studies in Cross-Linking Reactions of Cellulose

Chipalkatti

Desai

Sattur

et al. 1963

Textile Research Journal

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With a v,iew to st.udying the~ffect of bulky substituents in the cross-linking molecule on the phY~lco-chemlcal properties of reacted cellulose, 1 :3-dichloro-2-propanol and its acetyl, propionyl, and butyryl esters have been reacted with cellulose. Two cotton fabrics have bee~used: (i) a casement cloth of open structure and (ii) a poplin fabric of closed construction.The presence, of cross-links and the retention of the ester groups in the cross-links have been~stabhshed by the determination of the insolubility of the treated cellulose in cupr~mmontum hydroxide and the estimation of the ester contents. The effect of thẽ ubshtuent~ster gro~ps on the reactivity of these compounds and the resulting changes In the phYSlc~-chemlcal properties of the treated fabrics, such as dry and wet crease recovery, tensile strength, tear strength, stiffness as bending length, moisture regain, etc., have been assessed. It has been found that the cross-linking reactivity of these compounds decreases with the increase in molecular weight. Besides this, the ester group exerts ?distinct influence on the various properties mentioned above. It is observed that the Improved wet crease recovery, increased moisture regain, and stiffness of the fabrics treated with these compounds are inversely related to the increasing molecular weight of the substituent ester group. Similarly the losses in tensile and tear strength and the decrease in dry crease recovery become less as the molecular weight of the substituent ester group increases. Further work with heavier substituent groups is in progress.

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Section: Introductionmentioning

confidence: 99%

Studies in Cross-Linking Reactions of Cellulose

Chipalkatti

Desai

Sattur

et al. 1963

Textile Research Journal

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“…The losses of tensile strength and elongation correspond to the increase of crease resistance and may structurally be responsible for the increased elastic f, recovery, as pointed out by Gagliardi and Gruntfest and others [3,4]. Here, in addition, the resistance for acid hydrolysis might be related.…”

Section: Discussion and Resultsmentioning

confidence: 77%

Cross-Linking of Partially Cyanoethylated Cotton

Negishi¹,

Aida²

1959

Textile Research Journal

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By means of the hydrogen peroxide method, the carbamoylethylation of partially cyanoethylated cotton containing a low percentage of nitrogen appeared to be achieved to some extent without almost any damage. By formaldehyde-curing (110-150° C.) in the presence of acid catalyst such as ammonium chloride or dimethylaniline hydrochloride, the crease resistance of partially carbamoylethylated cotton fabrics, accompanied by a corresponding loss in the tensile strength and elongation, was improved over that of the cyanoethylated cotton. However, the improvement was less than that of the unmodified cured cotton. By curing (110-130° C.) with a moderately weak acid catalyst such as secondary ammonium phosphate, the crease resistance of the carbamoylethylated cotton was improved to some extent without so great a decrease in the tensile strength and elongation. Therefore, in the formaldehyde-curing of partially carbamoylethylated cotton fabrics the formation of a long chain of N-methylene bis ethyleneamide cross link between different cellulose molecules was deduced. An ammonium acetate catalyst was too weak to give any improvement. The good dyeing properties of cyanoethylated cotton have been retained after carbamoylethylation and formaldehyde-curing.

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“…Unfortunately, most new crosslinking agents are not as effective as DMDHEU. Among them, research on dialdehydes mainly focuses on glyoxal and glutaraldehyde [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Although the crease resistance of cotton fabrics finished with glyoxal and glutaraldehyde is satisfactory, dialdehydes with low boiling points are strongly irritative during finishing.…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis of Oxidized Sucrose and Its Application as a Crease-Resistant Crosslinking Agent

Feng

Yin

et al. 2022

Polymers

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Oxidized sucrose is a non-formaldehyde crosslinking agent with many applications in polymer crosslinking and modification, such as in the preparation of starch films and protein films. However, research on the structure of oxidized sucrose is lacking. In this paper, oxidized sucrose was synthesized through selective oxidation of sodium periodate. By LC-MS, FTIR, TGA, NMR, and HRMS analyses, it was shown that oxidized sucrose existed in the form of a hydrate, and the tetraaldehyde oxidized sucrose could isomerize into the form of two six-membered hemiacetal rings. The structure of oxidized sucrose was also verified by theoretical calculations. Furthermore, the diffusional properties of oxidized sucrose were investigated by the rolling-film method. Finally, it was found that oxidized sucrose used as a crosslinking agent could effectively improve the wrinkle recovery performance of cotton fabrics.

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Dialdehydes as Cotton Cellulose Cross-Linkers1

Cited by 28 publications

References 4 publications

Studies in Cross-Linking Reactions of Cellulose

Studies in Cross-Linking Reactions of Cellulose

Cross-Linking of Partially Cyanoethylated Cotton

Structural Analysis of Oxidized Sucrose and Its Application as a Crease-Resistant Crosslinking Agent

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