Plasticization of poly(lactide) with poly(ethylene glycol): Low weight plasticizer vs triblock copolymers. Effect on free volume and barrier properties

1. Chaos, A.
2. Sangroniz, A.
3. Fernández, J.
4. del Río, J.
5. Iriarte, M.
6. Sarasua, J.R.
7. Etxeberria, A.