1. R.W. Rees, Ionomers, in Kirk-Othmer Encyclopedia of Chemical Technology, 4th ed., vol. 14, Wiley, 1995, pp. 815–829.
2. R.D. Jenkinson, (to Union Carbide) US Patent 331, 922 (Dec. 19, 1963) and there are many other similar patent publications.
3. Ionomers: characterization, theory, and applications,1996
4. Ionomers: Synthesis, Structure, Properties and Applications,1997