Abstract
Different types of butyl acrylate (BA)-co-acrylic acid (AA) oligomers were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization and mixed with extruded 200 nm dimethyldioctadecylammonium bromide vesicles. The resulting precursor structures form the basis for subsequent vesicle-templated polymerizations. Systematic variations in temperature, pH, oligomer length, and oligomer composition and their effects on precursor morphology were studied. Surprisingly, different morphologies were obtained, including capsules, protruded capsules, solid spheres, and multicompartment structures. For example, capsules and multicompartment structures were found to result from higher AA contents, and protruded capsules and solid particles resulted from lower AA contents. Subsequent chain extension of the RAFT oligomers resulted in polymer nanostructures resembling the precursor morphologies.
| Original language | English |
|---|---|
| Article number | 24 |
| Pages (from-to) | 9476-9483 |
| Number of pages | 8 |
| Journal | Macromolecules |
| Volume | 52 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 24 Dec 2019 |
Funding
We gratefully acknowledge partial financial support from the Stichting Emulsion Polymerization. Electron microscopy was performed at the Center for Multiscale Electron Microscopy at Eindhoven University of Technology. Portions of information contained in this publication are printed with permission of Minitab, LLC. All such materials remain the exclusive property and copyright of Minitab, LLC. All rights reserved.
Keywords
- Liposome
- CryoTEM
- Design of experiment
- RAFT polymerization
- nanostructure