Shape Memory Polymer Foam Based on Nanofibrillar Composites of Polylactide/Polyamide.

ABSTRACT: This paper presents the novel development of a shape memory polymer foam based on polymer-polymer nanocomposites. Herein, polylactide (PLA)/biosourced polyamide (PA) foams are fabricated by in situ fibrillation of polymer blends and a subsequent supercritical CO₂ foaming technique. In this system, PLA serves as a shape memory polymer to endow this foam with a shape memory effect (SME), and in situ generated PA nanofibers are employed to reinforce the PLA cell walls and provide an additional permanent phase. A concentration of PA, 5 wt.%, was chosen to form an entangled nanofibrillar network. Foams of PLA/PA nanoblends with the same content of constituents were fabricated to reveal the effect of minor phase morphology on the cell structure and shape memory behavior of polymer foa

SUBMITTER: Elumalai D 

PROVIDER: S-EPMC11547612 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature