The sorption of low molecular weight carboxylic acids by wool from various solvents has been investigated. More extensive sorption was observed from neutral than from either basic or acidic solvents. These results may be rationalized in terms of acid-base interactions between solvent, wool, and carboxylic acids. Basic solvents inhibit sorption by competing with the wool for the acids, whereas acidic solvents inhibit sorption by competing with the carboxylic acids for the wool. Water, an amphoteric solvent, gives limited sorption of acids compared with that found from neutral solvents.
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References
1.
AbbottN. J.TeminS. C.ParkC., The Stress-Strain Behavior of Wool in Various Swelling Media, Textile Res. J.38, 1026–1039 (1968).
2.
BöhmeH.KnottJ., Ein Beitrag zum Lösungsmittelfarben von Wolle, Textil Prax. Int.28, 410–416 (1973).
3.
BradburyJ. H.ChapmanG. V., An Investigation by Light Microscopy of the Swelling of Wool Fibers, Textile Res. J.33, 666–668 (1963).
4.
BrancikJ. V.DatynerA., The Measurement of Swelling of Wool Fibers in Solvents by Laser-Beam Diffraction, Textile Res. J.47, 662–665 (1977).
5.
BurasE.FooksonA.BreuerM., Precise Measurement of Humidity Effects on Human Scalp Hair Diameter, in “Hair-Research,’OrfanosMontagna Stutgen, Eds., Springer-Verlag, Berlin, 1981, p. 634.
6.
CollingsA. J.MorganK. J., Solvent Effects in the Infrared Spectra of Carboxylic Acids, J. Chem. Soc.3437–3440 (1963).
7.
DragoR. S.VogelG. C.NeedhamT. E., A Four-Parameter Equation for Predicting Enthalpies of Adduct Formation, J. Am. Chem. Soc.93, 6014–6026 (1971).
8.
DragoR. S.ParrL. B.ChamberlainC. S., Solvent Effects and their Relationship to the E and C Equation, J. Am. Chem. Soc.99, 3203–3209 (1977).
9.
FowkesF. M.MostafaM. A., Acid-Base Interactions in Polymer Adsorption, Ind. Eng. Chem. Prod. Res. Dev.17, 3–7 (1978).
10.
FowkesF. M.TischlerD. O.WolfeJ. A.LanniganL. A.Ademu-JohnC. M.HalliwellM. J., Acid-Base Complexes of Polymers, J. Polym. Sci. Polym. Chem. Ed.22, 547–566 (1984).
11.
GilesC. H.SmithD., A General Treatment and Classification of the Solute Adsorption Isotherm, I: Theoretical, J. Colloid Interface Sci.47, 755–778 (1974).
12.
HintonE., Properties of Wool Treated with Difunctional Reactants in Swelling Media, thesis, North Carolina State University, Raleigh, 1972.
13.
HuesoJ. A., Farben von Wolle mit Reaktivfarbstoffen aus Lösungsmitteln, Textilveredlung10, 440–446 (1975).
14.
JensenW. B., Lewis Acid-Base Interactions and Adhesion Theory, Rubber Chem. Technol.55, 881–901 (1982).
15.
KnottJ., Teinture de la Laine et des Principle Fibres Synthetique en Milieu Solvant, Ann. Sci. Textiles Belg.20, 7–24 (1972).
16.
KnottJ.BohmeJ., Investigation sur la Teinture en Milieu purement organique de la Laine et des Fibre Synthetique, Teintex38, 561–571 (1973).
17.
LeederJ. D.RipponJ. A., Some Observations on the Dyeing of Wool from Aqueous Formic Acid, J. Soc. Dyers Color.99, 65–66 (1983).
18.
MaybeckJ.GalafassiP., The Effect of Hydrocarbon Substituents in Azo Dyes on Wool Dyeing, Appl. Polym. Sym.18, 463–472 (1971).
19.
MilliganB., Investigation into the Continuous Dyeing of Wool, J. Soc. Dyers Color.77, 106–112 (1961).
20.
RobertsG. A. F.SolankiR. K., Carrier Dyeing of Polyester Fibre, Part III: The Role of Water in Solvent Dyeing, J. Soc. Dyers Color.97, 220–223 (1981).
21.
VeldsmanD. P.MeissnerH. D.McIverB. A., Solvent Dyeing of Wool, in “Proc. 5th Int. Wool Text. Res. Conf., Aachen,’ V, 1975, pp. 221–230.
22.
WattI. C., Sorption of Organic Vapors by Wool Keratin, J. Appl. Polym. Sci.8, 1737–1750 (1964).
23.
WilsonB. W., Development of Solvent Process for the Dyeing of Wool Sliver, J. Soc. Dyers Color.86, 122–130 (1970).
24.
WortmannF. J.RigbyB. J.PhillipsD. G., The Glass Transition Temperature of Wool as a Function of Regain, Textile Res. J.54, 6–8 (1984).
