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.
Hales
Kelly
K
Department of Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, Newark, Delaware 19716, USA.
Chen
Zhiyun
Z
Wooley
Karen L
KL
Pochan
Darrin J
DJ
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