A Facile Synthesis of Dynamic, Shape‐Changing Polymer Particles
Abstract
We herein report a new facile strategy to ellipsoidal block copolymer nanoparticles that exhibit a pH‐triggered anistropic swelling profile. In a first step, elongated particles with an axially stacked lamellae structure are selectively prepared by utilizing functional surfactants to control the phase separation of symmetric polystyrene‐b‐poly(2‐vinylpyridine) (PS‐b‐P2VP) in dispersed droplets. In a second step, the dynamic shape change is realized by cross‐linking the P2VP domains, thereby connecting glassy PS discs with pH‐sensitive hydrogel actuators.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 02, 2014
- Source ID
- 10.1002/anie.201400183
Entities
People
- Craig Hawker
- Cynthia X. Wang
- Daniel Klinger
- Debra J. Audus
- Edward J. Kramer
- Glenn H. Fredrickson
- Kato L. Killops
- Luke A. Connal
- Se Gyu Jang
- Stephan Kraemer
Organizations
- Army Research Office
- National Heart, Lung, and Blood Institute
- National Science Foundation