Abstract
AbstractLatex colloids are among the most promising materials for broad thin film applications due to their facile surface functionalization. Yet, the effect of these colloids on chemical film and wetting properties cannot be easily evaluated. At the nanoscale, core–shell particles can deform and coalesce during thermal annealing, yielding fine‐tuned physical properties. Two different core–shell systems (soft and rigid) with identical shells but with chemically different core polymers and core sizes are investigated. The core–shell nanoparticles (NPs) are probed during thermal annealing in order to investigate their behavior as a function of nanostructure size and rigidity. X‐ray scattering allows to follow the re‐arrangement of the NPs and the structural evolution in situ during annealing. Evaluation by real‐space imaging techniques reveals a disappearance of the structural integrity and a loss of NP boundaries. The possibility to fine‐tune the wettability by tuning the core–shell NPs morphology in thin films provides a facile template methodology for repellent surfaces.
Highlights
Latex colloids are among the most promising materials for broad thin film this approach has been extended to noniridescent structural colors with broad applications due to their facile surface functionalization
Colloidal NPs having a hydrophilic shell based on N,N-dimethylaminoethyl methacrylate (DMAEMA) and a hydrophobic core composed of poly(methyl methacrylate) (PMMA) or poly(butyl methacrylate) (PBMA) were synthesized by RAFTmediated surfactant-free emulsion polymerization
The disappearance of the NPs integrity is investigated during thermal annealing (RT up to 140 °C) by a combination of grazing incidence SAXS (GISAXS), field-emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and contact angle measurements (CAM), allowing to characterize the particle morphology and to follow the structural evolution
Summary
Latex colloids are among the most promising materials for broad thin film this approach has been extended to noniridescent structural colors with broad applications due to their facile surface functionalization. Core–shell particles can deform and coalesce during thermal annealing, yielding fine-tuned physical properties. The core–shell nanoparticles (NPs) can be considered as “large-scale” atoms with adjustable size which can be assembled similar to atoms in a crystal.[4,6,7,8] Colloidal latex film formation is a complex process involving different phases are probed during thermal annealing in order to investigate their behavior as of drying, removal of water, particle rea function of nanostructure size and rigidity. The possibility to arrangement, interparticle chain-diffusion, and eventually coalescence.[2,7,9,10] On the nanoscale, core–shell particles can deform and coalesce during thermal annealing yielding fine-tuned physical properties.[2]. Controlled radical polymerization (RDRP).[14,15] One of the earliest studies on the synthesis of latex particles via emulsion
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
