title: Controlled stacking of charged block copolymer micelles.
abstract: Using poly(acrylic acid)-b-poly(methyl acrylate)-b-polystyrene (PAA-b-PMA-b-PS) triblock copolymers or a mixture of different molecular weight PAA-b-PS diblock copolymers, stacks of polymeric micellar assemblies, such as disks and Y-shaped cylinders, were formed through intermicellar interactions. Whereas micelles hierarchically stacked together, micellar interactions within the stack defined a uniform micelle geometry and size for up to micrometers in length. The kinetic pathway dependence and stability of the stacked assemblies were studied, and possible intermicellar interactions between micelles within the stacks are proposed.
authors.affiliation: Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Li
authors.forename: Zhiyun
authors.initials: Z
authors.lastname: Chen
authors.forename: Honggang
authors.initials: H
authors.lastname: Cui
authors.forename: Kelly
authors.initials: K
authors.lastname: Hales
authors.forename: Karen L
authors.initials: KL
authors.lastname: Wooley
authors.forename: Darrin J
authors.initials: DJ
authors.lastname: Pochan
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D007700:Kinetics; D008823:Micelles; D008854:Microscopy, Electron; D015394:Molecular Structure; D008970:Molecular Weight; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000179:Acrylates; D008823:Micelles; D011108:Polymers; D011137:Polystyrenes; C520172:poly(acrylic acid)-b-poly(methyl acrylate)-b-polystyrene