Amino polymers linear

Ferruti, P. and Barbucci, R. Linear Amino Polymers Synthesis, Protonation and Complex Formation. Vol. 58, pp. 59—92. 

Linear amino polymers containing basic nitrogen atoms are critically reviewed with regard to their synthesis, protonation and complex formation in solution with metal ions. Cross linked resins having essentially the same structure as linear polymers, are also mentioned. As far as the proto-nation is concerned, special care has been given to thermodynamic aspects, and to the most probable protonation mechanism. Complexing abilities of these polymers have been evaluated through stability constants and spectroscopic parameters. Practical implications of the properties have been considered. 

Linear Amino Polymers — Synthesis, Protonation and Complex Formation... 

Another important application of the polymer reagent method is in the synthesis of cyclic peptides. In this approach, the amino-protected linear peptide (7(5) is converted into the corresponding polymeric active ester (17) by coupling it to a cross-linked hydroxyl function containing polymer (eg. 12) on deprotection of the amino group and subsequent neutralization, the cyclic peptide (18) is obtained in good yields 109 110> ... 

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