1. J. B. Daniel, Trends Polym. Sci., 3, 154 (1995).
2. D. W. Fox, in Kirk-Othmer Encyclopedia of Chemical Technology, J. Kroschwitz, Ed., Wiley, New York, 1985, Vol. 18, p 479.
3. K. Sehanobish, T. Pham, and H. C. P. Bosnyak, in Polymeric Materials Encyclopedia, J. C. Salamone, Ed., CRC Press, Boca Raton, 1996, Vol. 8, p 5697.
4. H. Schnell, Angew. Chem., 68, 633 (1956).
5. S. Krishnan and R. J. White, U.S. Patent 4,772,655 (1988).