Access to Amphiphilic <i>Cis</i>-Configurated Polyamide‑3 Using Alcohols as Initiators
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Abstract
The
synthesis of polyamide-3 from 4a,5,8,8a-tetrahydro-1<i>H</i>-benzo[<i>d</i>][1,3]oxazine-2,4-dione (β-NCA, <b>1</b>) using methanol, dye (Disperse Red 13), and poly(ethylene
glycol) as initiator is described. The ring-opening polymerization
under release of CO<sub>2</sub> produces polyamides-3 with definite
terminal groups, high purity, and relatively narrow dispersity. This
route was used for preparation of block copolymers from as an example