Uncrosslinked epoxide-amine addition polymers, 44. Linear arylamine/2,2-bis[4-(2,3-epoxypropoxy)phenyl]-propane addition polymers — synthesis and properties

✍ Scribed by Joachim E. Klee; Rolf-Egbert Grützner; Hans-Heinrich Hörhold

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 848 KB
• Volume: 197
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1996.021970721

✦ Synopsis

Abstract

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 (M̄~w~/M̄~n~ = 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 M̄ values and ^13^C NMR spectra.