.png){kind=icon}
Return
Janus discs
.png){kind=icon}
PRE
AI
DOI：10.1021/ja068153v.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
We describe the synthesis and the solution properties of sheet- and disclike Janus particles, containing an inner crosslinked polybutadiene (PB) layer and two different outer sides of polystyrene (PS) and poly(tert-butyl methacrylate) (PtBMA). The structures formed upon adsorption of the flat Janus particles onto solid substrates as well as in THF solution are investigated. The Janus discs are obtained in a template-assisted synthetic pathway followed by sonication. Selectively crosslinking the lamellar PB domains in a well-ordered lamellar microphase-separated bulk morphology of PS-block-PB-block-PtBMA (SBT) block terpolymers leads to the conservation of the compartmentalization of the two outer blocks. Sonication of the crosslinked block terpolymer templates renders soluble sheet- and disclike Janus particles, the size of which can be tuned from the micrometer range down to the nanometer scale. Small-angle X-ray scattering, transmission electron microscopy, dynamic light scattering, scanning force microscopy, and scanning electron microscopy are used to characterize the template-assisted synthetic process and the solution properties. Cryogenic transmission electron microscopy in THF and TEM of particles, embedded into a photo-crosslinkable silicon oil, indicate a supramolecular aggregation behavior of the Janus discs in concentrated solutions. Pendant drop tensiometry demonstrates that Janus sheets and discs can be used to stabilize liquid-liquid interfaces, rendering these materials interesting for future applications.
Keywords:
LIQUID-LIQUID INTERFACES
DYNAMIC LIGHT-SCATTERING
PHOTO-CROSS-LINKING
FUNCTIONALIZED RUBBERS
MICELLES
PARTICLES
SUSPENSIONS
COPOLYMERS
POLYMERIZATION
POLYSTYRENE
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
15.6
Papers:
20.0W
Citations:
60.2W
Organization
No organization information available
Cited Papers
ShareSaveShareSaveSingle molecules and associates of heteroarm star copolymer visualized by atomic force microscopy.png)
MACROMOLECULES
MACROMOLECULESIF5.2
PREAI
ShareSave
ShareSaveSedimentation and diffusion in suspensions of sterically stabilized colloidal plateletsLANGMUIR
LANGMUIRIF3.9
PREAI
ShareSaveSelf-organization and pattern formation of janus particles in two dimensions by computer simulationsLANGMUIR
LANGMUIRIF3.9
PREAI
ShareSaveShareSave
View more