.Sodium hydroxide mercerization and liquid ammonia pretreatments resulted in substantially higher moisture regains, indicating greatly enhanced accessibilities as compared to the unmercerized pulp. Moisture regains and infrared crystal linities were used to evaluate these changes in accessibility. The highest accessibility occurred with a comhination of both treatments on "never-dried" pulp.
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References
1.
Acton, W.P., ITT Rayonier, Inc., New York, private communication, 1974.
Conference on the Liquid Ammonia Treatment of Cellulosic Textiles , The Cotton Silk and Man made Fibers Research Association, Shirley Institute, Manchester, England, 1970, p. 46.
4.
Gibbons, G.C. , Moisture Regain of Methylceliulosc and Cellulose Acetate, J. Textile Inst. (Trans.) 44, 201-208 (1953).
5.
Haff, D.R., ITT Rayonier, Inc., New York, private communication, 1975.
6.
Heap, S.A., "Textile and Paper Chemistry and Technology," ACS Symposium Series 49, Arthus, J. C., Jr., Ed., American Chemical Society, Washington, 1977, pp. 63-72.
7.
Jeffries, R. , Roberts, T.G., and Robinson , R.N., Accessibility andReaction Sites in Cotton, Textile Res. J.38, 234-244 (1968).
8.
Jung, H.Z., Berni, R.J., Benerito, R.R., and Carra, J.H., Liquid Ammonia vs. NaOH Mercerixation as Pretreatment for the Cotton-Butadienediepoxide Reaction, Spectral and Microscopical Studies, Textile Res. J.45, 681-691 (1975).
9.
Lewin, M., Guttman, H., and Saar, N., in: "Proceedings of the Eighth Cellulose Conference, II. Complete Tree Utilization and Biosynthesis Structure of Cellulose," Timell, T. E. (Ed.) John Wiley Interscience, New York, 1976, pp. 791-808.
10.
Lewin, M., Rau, R.O., and Sello, S.B., TheRole of Liquid Ammonia in Functional Textile Finishes, Textile Res. J.44, 680-686 (1974).
11.
Lewin, M. and Roldan, L.G., The Effect of Liquid Anhydrous Ammonia in the Structure and Morphology of Cotton Cellulose, J. Polym. Sci., Part C 36, 213-229 (1971).
12.
Marriman, H.F. , in: "Recent Advances in the Chemistry of Cellulose and Starch," Honeyman, J. (Ed.) Interscience Publishers, Inc., New York , 1959, pp. 147-187.
13.
Morton, W.E. and Hearte, J.W., "Physical Properties of Textile Fibers ," John Wiley and Scans, New York , 1975, p. 170.
14.
Nelson, M.L. and O'Connon, R.T., Relation of Certain Infrared Bands to Cellulose Crystallinity and Crystal Lattice Type. Part II. A New Infrared Ratio for Estimation of Crystallinity in Cellulose I and II. J. Appl. Polym. Sci.8, 1325-1341 (1964 ).
15.
Nelson, M.L., Southern Regional Research Laboratory, U. S. Department of Agriculture, New Orleans, la., private communication, 1977.
16.
Newman, J., Loeb, L., and Conrad, C.M., Viscosity, Sedimentation, Diffusion, and Osmatic Behavior of Long Chain Nitrocellulose Molecules, J. Polym. Sci.10, 463-487 (1953).
17.
O'Connon, R.T. , Dupré, E.F., and McCall, E.R., Infrared Spectrophotometric Procedure for Analysis of Cellulose and Modined Cellulose, Anal. Chem.29, 998-1005 (1957).
18.
Rousselle, M.A., Nelson, M.L., Hassenboehler , C.H., Jr., and Legendre, D.C., Liquid Ammonia and Caustic Mercerization of Cotton Fibers Changes in Fine Structure and Mechanical Properties, Textile Res. J.46, 304-310 (1976).
19.
Schleicher, H., Daniels, C., and Philipp, B., Changes of Cellulose Accessibility to Reactions in Alkaline Medium by Activation with Ammonia. J. Polym. Sci., Part C47, 251-260 (1974).
20.
Treiber, E., "Polymer Handbook," J. Brandreys, and G. H. Immergut (Eds.) John Wiley and Sons, New York, 1975, pp. V87-V116.
21.
Van Lancker, M., Motecutar Weight Characterization for Cellulosic Materials, IV: Application of GPC toStudies of the Cotton Degradation Process. Ann. Sci. Text. Belg.22, (3), 169-184 (1974). '
22.
Wadsworth, L.C. , unpublished literature review, Department of Textile Chemistry, North Carolina State UniversityRaleigh, N. C., 1977.
23.
Wadsworth, L.C. and Cuculo, J.A., "Textile and Paper Chemistry and Technology ," ACS Symposia Series49. Arthus, J. C., Jr. (Ed.) American Chemical Society, Washington, 1977, pp. 81-110.
24.
Wadsworth, L.C. and Cuculo, J.A., in: "Modined Cellulosics," Rowell, R. M. and Young, R. A. (Eds.) Academic Press, 1977 , (in press).
25.
Warwirker, J.A., Fundamental Basis of Liquid Ammonia Treatment of Cotton, Cellul. Chem. Technol.6, 85-97 (1972).
26.
Warwicker, J.O. , Jeffries, R., Colbran , R.L., and Robinson , R.N., "A Review of the Literature on the Effect of Caustic Soda and Other Swelling Agents on the Fine Structure of Cotton," The Cotton Silk and Man-made Fibers Association , Shirley Institute, Didsbury, Manchester, England, 1966.