Beschreibung:
<jats:title>Abstract</jats:title><jats:p>The addition polymerization of aromatic disecondary diamines and 2,2‐bis[4‐(2,3‐epoxypropoxy)phenyl]propane (DGEBA) leads to linear high molecular weight epoxide‐amine addition polymers with number‐average molecular weights ranging from 10 000 to 20 000 g/mol. Depending on the amine structure, their glass transition temperatures were estimated between 80 and 140°C. The fractionation of the high molecular weight addition polymers allows the separation of cyclic oligomers and the separation of polymers with narrow molecular weight distribution (<jats:italic>M̄</jats:italic><jats:sub>w</jats:sub>/<jats:italic>M̄</jats:italic><jats:sub>n</jats:sub> = 2.4–2.8). In dilute solution, predominantly cyclic oligomers were formed. Hence, they were prepared in such solutions and isolated by means of column chromatography. Their cyclic structure is proved by combination of <jats:italic>M̄</jats:italic> values and <jats:sup>13</jats:sup>C NMR spectra.</jats:p>