Gas-liquid chromatographic study of selected derivatives of 2-imidazolidinone

Bullock, Austin L.; Rowland, Stanley P.

doi:10.1021/ac50160a053

Cited by 1 publication

(2 citation statements)

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“…Among the conclusions with regard to structure of reagents resides-that appear firmly established from studies of cottons modified' with N-methylol reagents are: (1) covalent linkages, specifically, ether linkages between the N-methylol reagent and the n-glu.copyranosyl units.of cellulose, are developed [1,6,14]; (2) the proportion of linkages at the 2-0-, 3-0-, and 6-0-positions of the p-glucopyranosyl units varies with. the process and ,the reagents [14]; (3) network structures are formed in the fibers t.hrough, extensive development of crosslinkages [11]; and , (4) N-methylol reagents ,may react with.…”

Section: Introductionmentioning

confidence: 99%

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The Fate of a Monofunctional N-Methylol Reagent on Pad-Dry-Cure Reaction with Cotton

Rowland

Cirino

Bullock

et al. 1974

Textile Research Journal

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Chemically modified cottons resulting from reactions of hydroxymethylmethylethyleneurea (HMEU) and methoxymeihylmethyletbyleneurea (MMEU) with cotton fabric at 160°C by zinc nitrate catalysis were studied. From these cottons modified with the monofunctional analog of dimethylolethyleneurea (DMEU) positive evidence was found for the presence of trapped dimer of HMEU and for oxymethylene linkages in addition to the expected methyleneethyleneurea substituents. The estimate is: for approximately 1% of bound nitrogen or 4% add-on of HMEU, half of the nitrogen is present as the methyleneethyleneurea substituents; the remaining nitrogen is primarily dimer of HMEU; and 0.1% formaldehyde (on weight of fabric) is present as oxymethylene linkages. This estimate corresponds to 0.2 mol of oxymethylene linkages and 1 mol of trapped ethyleneurea units per mole of covalently attached methyleneethyleneurea substituents. The results are discussed relative to structures developed when cotton is treated with DMEU.

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Section: Introductionmentioning

confidence: 99%

“…Distention index (DI) was measured by the procedure of Stark and Rowland [12]. Gas-liquid chromatographic analyses were performed on an F & M Model 1609 instrument having a flame ionization detector; operating conditions have been described previously [2]. All analytical results are reported on the basis of dry weights of the cellulose.…”

Section: Introductionmentioning

confidence: 99%