Читать книгу Poly(lactic acid) - Группа авторов - Страница 141

In addition to PLA, several aliphatic polyesters are becoming good targets for biodegradable and carbon‐neutral multipurpose polymers, though they do not have necessarily the asymmetric carbon atoms on the skeletal chains. Because of the relatively high biodegradability, these various polyesters have become increasingly important in commodity field, including medical and pharmaceutical applications, food packaging, and even automobiles. To understand and improve their physical properties, it is needed to know how the combination between the ester parts and the aliphatic (and aromatic) segments affects the structure, phase transition, and crystallization behaviors in the different manner from those of the above‐mentioned PLA case. In this section, several representative aliphatic polyesters are listed, and their structural characteristics are briefly described.