Abstract
A series of random polyesteramides (PEAs) with a range of molar composition from 90/10 to 50/50 were synthesized by direct melt polycondensation of epsilon-caprolactone andl-alanine. Their structure was fully characterized by Fourier transform IR and NMR spectroscopy. The resulting copolymers are completely amorphous with the exception of PEA-90/10 which possesses a semicrystalline structure. These PEAs present increasing glass transition temperatures at increasingl-alanine contents and exhibit fairly good thermal stability with 10% mass loss temperatures reaching 315 degrees C. (c) 2020 Society of Industrial Chemistry