Coating sulfonated polystyrene microspheres with highly dense gold nanoparticle shell for SERS application

2013 ◽  
Vol 291 (8) ◽  
pp. 2023-2029 ◽  
Author(s):  
Wujin Cai ◽  
Wenqin Wang ◽  
Linchao Lu ◽  
Tao Chen
Keyword(s):  
Gold Nanoparticle ◽  
Polystyrene Microspheres ◽  
Sulfonated Polystyrene

scholarly journals PHOTOACTIVE GOLD NANOPARTICLE SOFTOXOMETALATES (SOM) USING A KEPLERATE FOR SYNTHESIS OF POLYSTYRENE LATEX MICROSPHERES BY PHOTOPOLYMERIZATION

2014 ◽  
Vol 02 (01) ◽  
pp. 1440002 ◽  
Author(s):  
ATHARVA SAHASRABUDHE ◽  
SOUMYAJIT ROY
Keyword(s):  
Gold Nanoparticle ◽  
Reaction Pathway ◽  
Inert Atmosphere ◽  
Polystyrene Latex ◽  
Polystyrene Microspheres ◽  
Atmosphere Effect ◽  
Transmission Electron ◽  
Styrene Concentration ◽  
Monodisperse Polystyrene

In this paper, a green and facile synthetic protocol for the preparation of photoactive gold nanoparticle-soft oxometalates ( AuNP-SOM ) using a unique keplarate type oxomolybdate cluster viz. { Mo 132}, is reported. The as-synthesized AuNP-SOMs are fully characterized by electronic absorption spectroscopy, Raman spectroscopy and high resolution transmission electron microscopy (HR-TEM). We further demonstrate that by merely tuning the ratio of the precursors in solution it is possible to control the morphology of AuNP-SOM nanostructures. Moreover, these photoactive AuNP-SOMs are employed as photocatalysts for the photopolymerization of styrene to generate colloidal monodisperse polystyrene microspheres in a controllable way in the absence of any external co-initiator or inert atmosphere. Effect of styrene concentration on the size of microspheres is studied using DLS and optical microscopy. Finally, the role of AuNP-SOMs as efficient photocatalyst is established through several control experiments and a reaction pathway is proposed.

scholarly journals Electric Field-Driven Assembly of Sulfonated Polystyrene Microspheres

Materials ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 329 ◽  
Author(s):  
Alexander Mikkelsen ◽  
Jarosław Wojciechowski ◽  
Michal Rajňák ◽  
Juraj Kurimský ◽  
Khobaib Khobaib ◽  
...  
Keyword(s):  
Electric Field ◽  
Polystyrene Microspheres ◽  
Sulfonated Polystyrene

Synthesis of Core @ Shell Composite Particles with a Tunable Shell Containing Natural Urushiol

2014 ◽  
Vol 936 ◽  
pp. 34-38
Author(s):  
Long Hui Zheng ◽  
Bao Ling Chen ◽  
Hai Bin Huang ◽  
Qin Hui Chen ◽  
Jin Huo Lin
Keyword(s):  
Electron Microscope ◽  
Tetrabutyl Titanate ◽  
Composite Particles ◽  
Core Shell ◽  
Polystyrene Microspheres ◽  
Sulfonated Polystyrene ◽  
Transmission Electron ◽  
Chelate Polymer ◽  
Shell Composite

The core @ shell composite particles of polystyrene @ urushiol-titanium chelate polymer (PS @ UTi) was prepared through in-situ reaction between sulfonated polystyrene microspheres coated tetrabutyl titanate and urushiol. The resultant PS @ UTi was characterized by scanning electron microscope and transmission electron microscope. Results indicated that the PS @ UTi with the excellent properties of raw lacquer was synthesized. The shell thickness of UTi coated on PS was tunable by changing the sulfonation time.

Porous hollow MoS2 microspheres derived from core–shell sulfonated polystyrene microspheres@MoS2 nanosheets for efficient electrocatalytic hydrogen evolution

2017 ◽  
Vol 4 (4) ◽  
pp. 741-747 ◽  
Author(s):  
Jun-Dong Yi ◽  
Peng-Chao Shi ◽  
Jun Liang ◽  
Min-Na Cao ◽  
Yuan-Biao Huang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Core Shell ◽  
Polystyrene Microspheres ◽  
Mos2 Nanosheets ◽  
Sulfonated Polystyrene

Hollow MoS2 microspheres were constructed using monodisperse sulfonated polystyrene (SPS) as the template, and exhibited excellent HER performance.

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