Abstract
Hierarchically porous polymeric materials with controllable pore size were successfully generated through a ternary polymer blending strategy. Polylactide/high- density polyethylene/styrene-ethylene/butylene-styrene copolymer (PLA/HDPE/SEBS) was used as a model system to demonstrate this technique. After melt blending, the SEBS was driven into the HDPE phase owing to the presence of the PE block in the copolymer. With proper volume fractions of HDPE/PLA/SEBS (e.g., 25/50/25), a bi-modal, dual co-continuous morphology was obtained and hierarchically porous polymeric materials were further generated by selectively removing the PLA and SEBS phases. Annealing and composition variation were further employed to control the pore size and it is shown that the length scales, for each of the two co-continuous morphologies, can be controlled independently.
| Original language | English |
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| Pages | 890-896 |
| Number of pages | 7 |
| Publication status | Published - 2014 |
| Externally published | Yes |
| Event | 72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014 - Las Vegas, United States Duration: 28 Apr 2014 → 30 Apr 2014 |
Conference
| Conference | 72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014 |
|---|---|
| Country/Territory | United States |
| City | Las Vegas |
| Period | 28/04/14 → 30/04/14 |
Bibliographical note
Publisher Copyright:Copyright © (2014) by the Society of Plastics Engineers.