This volume is part of a continuing series discussing recent developments in the polymer sciences. It contains research papers on such topics as biodegradable polymers, polyanhydrides, cellulose derivatives and the microencapsulation of live animal cells using polyacrylates.

Contributions by: S. Amselem, E. Doelker, A.J. Domb, J. Heller, R.W. Lenz, M. Maniar, M.V. Sefton, J. Shah, W.T.K. Stevenson