Neckers

E. C. Blossey and D. C. Neckers, Eds., Solid Phase Synthesis, Halsted, New York, 1975 P. Hodge and D. C. Sherrington, Eds., Polymer-Supported Reactions in Organic Synthesis, Wiley-Interscience, New York, 1980. A comprehensive review of polymeric protective groups by J. M. J. Frechet is included in this book. 

Pol5uireas were among the first polycondensation pol-5mers to be employed as catal dic supports for heterogeneous metal catalysts. The first report about palladium on polyurea, by Zhang and Neckers [99] dates back to 1979. They obtained their catalyst in a two step preparation, where the co-monomers (2,4- toluendiisocyanate, TDI, and the complex between palladium acetate and 4,4 -di-amino-2,2 -bip5Tiridine) were condensed together and... 

In 1987 Saffran and Neckers (5) disclosed a coating for a capsule containing the drug that appears to satisfy a need for oral insulin delivery when tested in animals. In this case, a solution of "crosslinked" polymer is coated onto the capsule. 

D. C. Neckers, Mechanistic Organic Photochemistry, Reinhold, New York (1967), Chapter 7. 

Paczkowski J, Neckers DC (1991) Twisted intramolecular charge-transfer phenomenon as a quantitative probe of polymerization kinetics. Macromolecules 24(10) 3013-3016... 

Neckers, L., Whitesel, L., Rosolen, A., and Geselowitz, D.A., Antisense inhibition of oncogene expression, Critical Reviews in Oncogenesis, 1992, 3, 175-231. 

As to quantities 0 (Eq. 39), they are equal to Xa8Vfl, where 8Vfl is the Kro-necker symbol. In view of this, only the first item in the sum (Eq. 38), XaXp, is distinct from zero. This corresponds to the absence of chemical correlations along the macromolecule on all scales. In other words, the distribution of units for such copolymers is Bernoullian [2]. 

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