Nanoparticles with tunable internal structure from triblock copolymers of PAA-b-PMA-b-PS.
Polymer nanoparticles containing their own inherent nanostructure (lamellar, bicontinuous-like, or porous) were formed via the self-assembly of a triblock copolymer complexed with a multiamine counterion in mixed solvents. The internal nanostructure is due to local phase separation of the block copolymers and can be tuned by varying the solvent composition, the relative block composition, and the valency of the organic counterion.
Department of Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, Newark, Delaware 19716, USA.
Kelly
K
Hales
Zhiyun
Z
Chen
Karen L
KL
Wooley
Darrin J
DJ
Pochan
D000179:Acrylates / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D011137:Polystyrenes / Q000737:chemistry*
D000179:Acrylates; D011137:Polystyrenes; C520172:poly(acrylic acid)-b-poly(methyl acrylate)-b-polystyrene