Abstract: | The condensation of D ‐mannaro‐1,4:6,3‐dilactone ( 2 ) with even‐numbered alkylenediamines (C2, C6–C12) in a methanol solution and in the presence of triethylamine afforded polymannaramides 3 – 7 , which were isolated directly as white solids with various hydrophobic–hydrophilic characters. Because all the stereocenters in 2 possessed an S configuration, the random polymerization led to optically active, stereoregular polyhydroxypolyamides. The polymers were characterized by elemental analysis and IR, 1H NMR, and 13C NMR spectroscopy. Their number‐average molecular weights were estimated by 1H NMR spectral integration analysis. Thermal and powder X‐ray diffraction studies revealed that compounds 3 – 7 were poorly crystalline. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 1024–1030, 2001 |