1. The history of cellulose and classical experiments that led to the present understanding of its structure are reviewed by C. B. Purves in “High Polymers,” Vol. 5, “Cellulose and Cellulose Derivatives,” E. Ott, H. M. Spurlin, and M. W. Grafflin, eds., Interscience, New York, 2nd Ed., 1954, pp. 54–59.
2. The general principles of cellulose etherification are reviewed by A. B. Savage, A. E. Young, and A. T. Maasberg in “High Polymers,” Vol. 5, “Cellulose and Cellulose Derivatives,” E. Ott, H. M. Spurlin, and M. W. Grafflin, eds., Interscience, New York, 2nd Ed., 1954, pp. 882–958.
3. Temperature-Viscosity Relationships for Water-Soluble Cellulose Ethers
4. Reactivity of the hydroxyl groups in cellulose is reviewed by H. M. Spurlin in “High Polymers,” Vol. 5, “Cellulose and Cellulose Derivatives,” E. Ott, H. M. Spurlin, and M. W. Grafflin, eds., Interscience, New York, 2nd Ed., 1954, pp. 673–712.