Formulas have been developed for the calculation of free, total, and crosslink degree of substitution in Cellulose Ester Derivatives. Free and total carboxylic acid group content from established analytical methods is required.
Davidson, G.F. and Nevell, T.P., Cellulosic Materials : Carboxyl Content Determination; Comparison of Several Methods, J. Textile Inst.39, T102-T117 (1948).
3.
Genung, L.B. and Mallatt, R.C., Analysis of Cellulose Derivatives, Ind. Eng. Chem.13, 369-374 (1941).
4.
Johnson, E.H. and Cuculo, J.A., TheReactions of Cellulose with Amic Acids and Anhydride/Ammonia. Part III: Reactivity of a, β-Amic Acids and Corresponding Anhydrides/ Ammonia, Textile Res. J.43, 283-293 (1973).
5.
Lüdtke, M., Über den Säuregehalt von Kunsteiden und seine Bestimmung, Z. Angew, Chem., 48, 650 (1935).
6.
Ott, Emil, Cellulose and Cellulose Derivatives, in "High Polymers," 2nd ed., vol. 5, pt. 3, New York , Interscience, 1955, pp. 1422-1423.
