Preparation of Monodisperse Polystyrene Particles from Emulsifier-free Miniemulsion Polymerization

2008 ◽  
Vol 37 (11) ◽  
pp. 1158-1159 ◽  
Author(s):  
Hua Wang ◽  
Sen Zhang ◽  
Mozhen Wang ◽  
Xuewu Ge
Keyword(s):  
Miniemulsion Polymerization ◽  
Monodisperse Polystyrene

scholarly journals Design and experimental investigation of a novel spiral microfluidic chip to separate wide size range of micro-particles aimed at cell separation

2021 ◽  
pp. 095441192110297
Author(s):  
Seyed Ali Tabatabaei ◽  
Mohammad Zabetian Targhi
Keyword(s):  
Point Of Care ◽  
Diagnostic System ◽  
Average Diameter ◽  
Microfluidic System ◽  
Microfluidic Chips ◽  
Medical Sciences ◽  
Blood Samples ◽  
Micro Particles ◽  
Monodisperse Polystyrene ◽  
Device Size

Isolation of microparticles and biological cells on microfluidic chips has received considerable attention due to their applications in numerous areas such as medical and engineering fields. Microparticles separation is of great importance in bioassays due to the need for smaller sample and device size and lower manufacturing costs. In this study, we first explain the concepts of separation and microfluidic science along with their applications in the medical sciences, and then, a conceptual design of a novel inertial microfluidic system is proposed and analyzed. The PDMS spiral microfluidic device was fabricated, and its effects on the separation of particles with sizes similar to biological particles were experimentally analyzed. This separation technique can be used to separate cancer cells from the normal ones in the blood samples. These components required for testing were selected, assembled, and finally, a very affordable microfluidic kit was provided. Different experiments were designed, and the results were analyzed using appropriate software and methods. Separator system tests with polydisperse hollow glass particles (diameter 2–20 µm), and monodisperse Polystyrene particles (diameter 5 & 15 µm), and the results exhibit an acceptable chip performance with 86% of efficiency for both monodisperse particles and polydisperse particles. The microchannel collects particles with an average diameter of 15.8, 9.4, and 5.9 μm at the proposed reservoirs. This chip can be integrated into a more extensive point-of-care diagnostic system to test blood samples.

scholarly journals Superhydrophilic Coating of Pine Wood by Plasma Functionalization of Self-Assembled Polystyrene Spheres

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 114
Author(s):  
Sebastian Dahle ◽  
John Meuthen ◽  
René Gustus ◽  
Alexandra Prowald ◽  
Wolfgang Viöl ◽  
...  
Keyword(s):  
Dip Coating ◽  
Face Centered Cubic ◽  
Wood Substrate ◽  
Polystyrene Spheres ◽  
Pine Wood ◽  
Self Assembling ◽  
Monodisperse Polystyrene ◽  
Self Assembled ◽  
Face Centered ◽  
Plasma Functionalization

Self-assembling films typically used for colloidal lithography have been applied to pine wood substrates to change the surface wettability. Therefore, monodisperse polystyrene (PS) spheres have been deposited onto a rough pine wood substrate via dip coating. The resulting PS sphere film resembled a polycrystalline face centered cubic (FCC)-like structure with typical domain sizes of 5–15 single spheres. This self-assembled coating was further functionalized via an O2 plasma. This plasma treatment strongly influenced the particle sizes in the outermost layer, and hydroxyl as well as carbonyl groups were introduced to the PS spheres’ surfaces, thus generating a superhydrophilic behavior.

Synthesis of poly(ethylene-co-butylene)-block-poly(ethylene oxide) surfactant and its use in the synthesis of polyhydroxyethyl methacrylate nanoparticles containing azo-dye

RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 35027-35034 ◽  
Author(s):  
Yee Song Ko ◽  
Monica V. Circu ◽  
Thomas Geiger ◽  
Simon Dünki ◽  
Frank A. Nüesch ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Azo Dye ◽  
Miniemulsion Polymerization ◽  
Hydroxyethyl Methacrylate ◽  
Polyhydroxyethyl Methacrylate ◽  
Inverse Miniemulsion ◽  
Poly Ethylene Oxide ◽  
Disperse Red 1 ◽  
Poly Ethylene

A new poly(ethylene-co-butylene)-block-poly(ethylene oxide) surfactant was synthesized and used in inverse miniemulsion polymerization of 2-hydroxyethyl methacrylate with encapsulated Disperse Red 1.

The Kinetics of Methyl Methacrylate Miniemulsion Polymerization Characterized through a Fluorescence Method

2012 ◽  
Vol 178-181 ◽  
pp. 609-612
Author(s):  
Hai Ke Feng ◽  
Hua Yu Qiu ◽  
Li Yuan Ding ◽  
Cun Jin Xu
Keyword(s):  
Methyl Methacrylate ◽  
Anionic Surfactant ◽  
Sodium Dodecyl Sulphate ◽  
Sodium Dodecyl ◽  
Miniemulsion Polymerization ◽  
Time Measurement ◽  
Fluorescence Method ◽  
Real Time Measurement ◽  
Measurement Results ◽  
Kinetics Of

In this paper, we followed the kinetics of methyl methacrylate (MMA) through a novel fluorescence method. The real-time measurement results show that in the regime of very low monomer contents, such as a solution containing 0.1 wt% of MMA with respect to water and with the anionic surfactant of sodium dodecyl sulphate (SDS), the kinetic of the miniemulsion could be followed by this embed fluorescence method. The processes of changing from emulsion to miniemulsion with different amount of surfactant and cosurfactant also have been monitored.

Miniemulsion Polymerization Based on Low Energy Emulsification with Preservation of Initial Droplet Identity

2010 ◽  
Vol 43 (19) ◽  
pp. 7905-7907 ◽  
Author(s):  
Siqing Cheng ◽  
Yi Guo ◽  
Per B. Zetterlund
Keyword(s):  
Miniemulsion Polymerization ◽  
Low Energy ◽  
Initial Droplet

Incorporation of polybutadiene into waterborne polystyrene nanoparticles via miniemulsion polymerization

2013 ◽  
Vol 49 (9) ◽  
pp. 2635-2644 ◽  
Author(s):  
Ludmila I. Ronco ◽  
Roque J. Minari ◽  
Jorge R. Vega ◽  
Gregorio R. Meira ◽  
Luis M. Gugliotta
Keyword(s):  
Miniemulsion Polymerization ◽  
Polystyrene Nanoparticles
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