Preparation and Characterization of Crosslinked Latex Nanoparticles by Differential Microemulsion Polymerization

2013 ◽  
Vol 832 ◽  
pp. 759-762
Author(s):  
N.F. Hassmoro ◽  
Mohamad Rusop ◽  
Saifollah Abdullah
Keyword(s):  
Spin Coating ◽  
Crosslinking Agent ◽  
Butyl Methacrylate ◽  
Particle Sizes ◽  
Microemulsion Polymerization ◽  
Monomer Mixture ◽  
Spherical Image ◽  
Glycol Dimethacrylate ◽  
Coating Method

The differential microemulsion polymerization was used to synthesize crosslinked latex nanoparticles. In this paper, 1, 3-butylene glycol dimethacrylate (1, 3-BGDMA) was used as a crosslinking agent respectively 0-6 weight% of monomer total. The polymerization was carried out using butyl methacrylate (BMA), butyl acrylate (BA) and methacrylic acid (MAA) as the monomer mixture. The thin film of latex nanoparticles were prepared by using spin coating method and have been dried at 100°C for 5 minutes. The amount of the crosslinking agent added in the polymerization was optimized and we found that the particle sizes fall in the range of 30-60 nm. Field Emission Scanning Electrons Microscope (FESEM) was demonstrated that the spherical image of uncrosslinked latex change to a wooden-like image when the crosslinking agent added in the polymerization.

Effect of Particle Size on the Synthesization of Latex Nanoparticles

2015 ◽  
Vol 1109 ◽  
pp. 291-294
Author(s):  
N.F. Hassmoro ◽  
M. Rusop ◽  
Saifollah Abdullah
Keyword(s):  
Structural Properties ◽  
Spin Coating ◽  
Butyl Methacrylate ◽  
Particle Sizes ◽  
Microemulsion Polymerization ◽  
Force Microscopy ◽  
Atomic Force ◽  
Coating Method ◽  
Effect Of Particle Size ◽  
Polymerization Method

The differential microemulsion polymerization method was used to prepare the latex nanoparticles at different amount of monomer. The monomer mixture consists different amount of butyl methacrylate (BMA) that was varied from 5.7 g to 9.7 g. Thin film of latex nanoparticles was prepared using the spin coating method and has been dried at 100°C for 5 minutes. The particle sizes of latex nanoparticles were characterized using Zetasizer nanoseries and the structural properties of the samples was studied using Atomic Force Microscopy (AFM). As the BMA amount increased, the particle sizes of latex nanoparticles has found to decrease from 69.66 nm to 31.16 nm and the roughness has detected to reduce from 3.78 nm to 2.63 nm. We have found that the BMA content in the polymerization has sensitively effect the particle sizes and the structural properties of the latex nanoparticles.

Fabrication and electrical characterization of transparent NiO/ZnO p–n junction by the sol–gel spin coating method

2012 ◽  
Vol 64 (1) ◽  
pp. 219-223 ◽  
Author(s):  
M. Cavas ◽  
R. K. Gupta ◽  
A. A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Farid El-Tantawy ◽  
...  
Keyword(s):  
Spin Coating ◽  
Sol Gel ◽  
Electrical Characterization ◽  
Spin Coating Method ◽  
Coating Method

scholarly journals Radio-, Thermo- and Photoluminescence Properties of Lu2O3:Eu and Lu2O3:Tb Nanopowder and Film Scintillators

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 148 ◽  
Author(s):  
P. Popielarski ◽  
J. Zeler ◽  
P. Bolek ◽  
T. Zorenko ◽  
K. Paprocki ◽  
...  
Keyword(s):  
Spin Coating ◽  
Luminescent Properties ◽  
Emission Lines ◽  
Hydrothermal Processing ◽  
Photoluminescence Properties ◽  
Temperature Quenching ◽  
X Ray ◽  
Decay Times ◽  
Coating Method

This work is dedicated to the preparation and characterization of the radio-, thermo-, and photoluminescent properties of Lu2O3:Eu and Lu2O3:Tb nanopowder (NPs) scintillators, prepared by means of hydrothermal processing, and their film analogues made of these NPs by the spin coating method. The luminescent properties of NPs and films were characterized by cathodoluminescence (CL), photoluminescence (PL), X-ray excited radioluminescence (RL), and thermoluminescence (TL) at low and high temperatures. In Lu2O3:Eu NPs and films, mostly the luminescence of Eu3+ ions occupying the C2 site of the host, with the most intensive peaks at 611.6 nm and a decay time of 1.5 ms, was observed. On the contrary, two types of Tb3+ centers in the C2 and C3i sites with the main emission lines at 542.4 and 544.0 nm and the corresponding 4f→5d excitation bands at 270 and 305 nm and decay times of t1/e = 2.17 and 3.96 ms were observed in the case of Lu2O3:Tb NPs and films. Indications were noted that Tb3+ in the C3i symmetry position was most active in the CL spectra of Lu2O3:Tb NPs and a respective film. Thermoluminescent peaks at 110 °C and 170 °C for Lu2O3:Eu NPs and at 75 °C and 120 °C in Lu2O3:Tb NPs were observed corresponding to the hole and electron traps, respectively. Significantly different onsets of temperature quenching of Eu3+ and Tb3+ luminescence in Lu2O3:Eu and Lu2O3:Tb NPs were found at ~90 °C and ~320 °C, respectively.

Characterization of Brightness of ZnS Electroluminescent Device with Dielectric Materials of SOG or TEOS

2008 ◽  
Vol 55 ◽  
pp. 160-163
Author(s):  
Sung Min Park ◽  
Mun Ja Kim ◽  
Sang Hyun Park ◽  
Jin Young Kim ◽  
Ji Beom Yoo
Keyword(s):  
Spin Coating ◽  
Dielectric Material ◽  
Dielectric Materials ◽  
Organic Binder ◽  
Layer Formation ◽  
Phosphor Layer ◽  
Electroluminescent Device ◽  
Coating Method ◽  
Powder Type

Spin on glass (SOG) and Tetraethylorthosilicate (TEOS) as a dielectric material were applied for inorganic powder type electroluminescent (EL) device. The spin coating method was used for the SOG layer or TEOS layer formation and phosphor layer formation. The phosphor layer was composed of ZnS:Cu,Cl powders and organic binder. The brightness of powder EL has been measured.

Fabrication and characterization of Au/n-ZnO/p-Si/Al sandwich device with Sol–gel spin coating method

2019 ◽  
Vol 30 (6) ◽  
pp. 6082-6087 ◽  
Author(s):  
Eyüp Fahri Keskenler ◽  
Mustafa Furkan Keskenler ◽  
Murat Tomakin ◽  
Vagif Nevruzoğlu
Keyword(s):  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Method ◽  
Coating Method ◽  
Fabrication And Characterization

Process Optimization of High Oil Absorption Resins by Suspended Emulsion Polymerization and their Properties

2014 ◽  
Vol 700 ◽  
pp. 257-260
Author(s):  
Hui Min Wang ◽  
Jin Yuan Li ◽  
Yan Li Ma ◽  
Jun Xiu Dai ◽  
Li Li Zhao
Keyword(s):  
Crosslinking Agent ◽  
Butyl Methacrylate ◽  
Oil Absorption ◽  
Absorption Test ◽  
Glycol Dimethacrylate ◽  
Excellent Performance ◽  
Absorption Properties ◽  
Stearyl Methacrylate ◽  
Lignin Sulfonate ◽  
Modified Lignin

To reduce costs and obtain excellent performance, acrylic modified lignin sulfonate instead of butyl methacrylate stearyl methacrylate was prepared to oil absorption resin. And 1, 4-butylene glycol dimethacrylate as a crosslinking agent, 2,2’-azo-bis-(2-methylpropionitrile) as the initiator, with butyl acrylate to product the high lignin oil-absorbing resin, selected the best scheme for preparing by the orthogonal method, and the different concentrations of lignin and the best resin properties determined by SEM and its oil absorption test. Experimental results show that the resin has the high oil absorption properties,the maximum absorption of 20 times, and the suction speed is fast that 90min to reach saturation; It also has other characteristics,such as inexpensive cost, lightweight, easy recycling and disposal, reusable and so on.

Preparation and characterization of luminescent YPO4: Eu3+ thin films using sol gel spin coating method

2020 ◽  
Vol 694 ◽  
pp. 137738 ◽  
Author(s):  
L. Benharrat ◽  
L. Guerbous ◽  
D. Bradai ◽  
A. Boukerika ◽  
A. Manseri ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Method ◽  
Coating Method
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