1. See for example, ‘Coulombic Interactions in Macromolecular Systems’, A. Eisenberg and F.E. Bailey, eds., ACS Symposium Series #302, American Chemical Society, Washington, D.C. 1986.
2. A. Eisenberg, Macromol., 3, 147 (1970).
3. R.W. Rees and D.J. Vaughan, Am. Chem. Soc. Polym. Prepr., 6, 287 (1965).
4. E.P. Otacka and T.K. Kwei, Macromo. 1, 244 (1968).
5. E.P. Otacka and T.K. Kwei, ibid 401.