Precise Synthesis of Polymer Particles Spanning from Anisotropic Janus Particles to Heterogeneous Nanoporous Particles

2019 ◽  
Vol 52 (9) ◽  
pp. 3237-3243 ◽  
Author(s):  
Wenzhong Zhai ◽  
Yongyang Song ◽  
Zhinong Gao ◽  
Jun-Bing Fan ◽  
Shutao Wang
Keyword(s):  
Janus Particles ◽  
Polymer Particles ◽  
Nanoporous Particles

Numerical Simulation on Dynamics and Thermal Decomposition of Spallation Polymer Particles Flying in Polymer Ablated Arcs

2015 ◽  
Vol 135 (11) ◽  
pp. 681-687 ◽  
Author(s):  
Takuya Nakagawa ◽  
Tomoyuki Nakano ◽  
Yasunori Tanaka ◽  
Yoshihiko Uesugi ◽  
Tatsuo Ishijima
Keyword(s):  
Numerical Simulation ◽  
Thermal Decomposition ◽  
Polymer Particles

Transformable Colloidal Polymer Particles with Ordered Internal Structures

Small ◽  
2020 ◽  
pp. 2006132
Author(s):  
Renhua Deng ◽  
Lingfei Zheng ◽  
Xi Mao ◽  
Baohui Li ◽  
Jintao Zhu
Keyword(s):  
Polymer Particles ◽  
Internal Structures

scholarly journals Active Janus particles in a complex plasma

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
V. Nosenko ◽  
F. Luoni ◽  
A. Kaouk ◽  
M. Rubin-Zuzic ◽  
H. Thomas
Keyword(s):  
Janus Particles ◽  
Complex Plasma

scholarly journals Thermophoresis of Janus particles at large Knudsen numbers

2018 ◽  
Vol 3 (9) ◽  
Author(s):  
Tobias Baier ◽  
Sudarshan Tiwari ◽  
Samir Shrestha ◽  
Axel Klar ◽  
Steffen Hardt
Keyword(s):  
Janus Particles ◽  
Knudsen Numbers

scholarly journals Green Electrospinning of Polymer Latexes: A Systematic Study of the Effect of Latex Properties on Fiber Morphology

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 706
Author(s):  
Edurne Gonzalez ◽  
Aitor Barquero ◽  
Belén Muñoz-Sanchez ◽  
María Paulis ◽  
Jose Ramon Leiza
Keyword(s):  
Systematic Study ◽  
Molar Mass ◽  
Aqueous Dispersion ◽  
Particle Packing ◽  
Fiber Morphology ◽  
Polymer Particles ◽  
Total Solids ◽  
Hydrophobic Polymers ◽  
Safe Technology ◽  
Solids Content

Green electrospinning is a relatively new promising technology in which a polymer (latex) can be spun from an aqueous dispersion with the help of a template polymer. This method is a green, clean and safe technology that is able to spin hydrophobic polymers using water as an electrospinning medium. In this article, a systematic study that investigates the influence of the template polymer molar mass, the total solids content of the initial dispersion and the particle/template ratio is presented. Furthermore, the influence of the surfactant used to stabilize the polymer particles, the surface functionality of the polymer particles and the use of a bimodal particle size distribution on the final fiber morphology is studied for the first time. In green electrospinning, the viscosity of the initial complex blend depends on the amount and molar mass of the template polymer but also on the total solids content of the dispersion to be spun. Thus, both parameters must be carefully taken into account in order to fine-tune the final fiber morphology. Additionally, the particle packing and the surface chemistry of the polymer particles also play an important role in the obtained nanofibers quality.

scholarly journals Substrate wettability guided oriented self assembly of Janus particles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Meneka Banik ◽  
Shaili Sett ◽  
Chirodeep Bakli ◽  
Arup Kumar Raychaudhuri ◽  
Suman Chakraborty ◽  
...  
Keyword(s):  
Self Assembly ◽  
Janus Particles ◽  
Water Molecules ◽  
Functional Coatings ◽  
Hexagonal Close Packed ◽  
Local Densities ◽  
Inhomogeneous Properties ◽  
Metal Polymer ◽  
Specific Orientation

AbstractSelf-assembly of Janus particles with spatial inhomogeneous properties is of fundamental importance in diverse areas of sciences and has been extensively observed as a favorably functionalized fluidic interface or in a dilute solution. Interestingly, the unique and non-trivial role of surface wettability on oriented self-assembly of Janus particles has remained largely unexplored. Here, the exclusive role of substrate wettability in directing the orientation of amphiphilic metal-polymer Bifacial spherical Janus particles, obtained by topo-selective metal deposition on colloidal Polymestyere (PS) particles, is explored by drop casting a dilute dispersion of the Janus colloids. While all particles orient with their polymeric (hydrophobic) and metallic (hydrophilic) sides facing upwards on hydrophilic and hydrophobic substrates respectively, they exhibit random orientation on a neutral substrate. The substrate wettability guided orientation of the Janus particles is captured using molecular dynamic simulation, which highlights that the arrangement of water molecules and their local densities near the substrate guide the specific orientation. Finally, it is shown that by spin coating it becomes possible to create a hexagonal close-packed array of the Janus colloids with specific orientation on differential wettability substrates. The results reported here open up new possibilities of substrate-wettability driven functional coatings of Janus particles, which has hitherto remained unexplored.

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