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Your search keyword '"Qiu, Xue-Qiong"' showing total 3 results
Start Over Author "Qiu, Xue-Qiong" Topic polystyrene
3 results on '"Qiu, Xue-Qiong"'

1. Optical Performance and Nonlinear Scattering of Soluble Polystyrene Grafted Multi-Walled Carbon Nanotubes

Author

Qian Shi-Xiong, Qiu Xue-Qiong, WU Hui-Xia, Cai Rui-Fang, Tong Rui, and Lin Yang-Hui

Subjects
Materials science, Nonlinear absorption, General Physics and Astronomy, Nanotechnology, Carbon nanotube, Nanosecond, Laser, law.invention, chemistry.chemical_compound, chemistry, Chemical engineering, law, Optical limiting, Polystyrene, Nonlinear scattering
Abstract

Three soluble polystyrene grafted multi-walled carbon nanotube (MWNT) samples are synthesized, and their optical performance and nonlinear scattering properties are investigated by z-scan method using nanosecond pulses of 532 nm from a frequency-doubled Q-switched Nd:YLF laser. Analysis of the experimental results shows that other than nonlinear scattering, nonlinear absorption plays a major role in optical limiting performance of these stable and well-dispersed suspensions. These new synthesized materials which can be better dispersed in common organic solvents than MWNT itself can be considered as potential sources for further optical applications.

Published
2006

2. Nonlinear Optical Properties of Indium Phthalocyanine Axially Grafted Polystyrene Thin Film

Author

Zhu Rong-Yi, Qiu Xue-Qiong, Qian Shi-Xiong, and Chen Yu

Subjects
Materials science, business.industry, General Physics and Astronomy, chemistry.chemical_element, chemistry.chemical_compound, Optics, chemistry, Atomic orbital, Distortion, Femtosecond, Phthalocyanine, Optoelectronics, Polystyrene, Thin film, business, Ultrashort pulse, Indium
Abstract

Ultrafast dynamics and third-order nonlinearity of thin films of tert-butyl peripherally-substituted indium phthalocyanine axially grafted polystyrene (tBu4PcIn–PS) are investigated by femtosecond optical-Kerr-effect (OKE) and z-scan experiments. The fastest component (

Published
2006

3. Polymer-wrapped multiwalled carbon nanotubes synthesized via microwave-assisted in situ emulsion polymerization and their optical limiting properties

Author

Wu, Hui-Xia, Qiu, Xue-Qiong, Cao, Wei-Man, Lin, Yang-Hui, Cai, Rui-Fang, and Qian, Shi-Xiong

Subjects
*CARBON nanotubes, *POLYSTYRENE, *POLYMETHYLMETHACRYLATE, *COMPOSITE materials, *EMULSION polymerization, *POTASSIUM compounds, *CHLOROFORM
Abstract

Abstract: Multiwalled carbon nanotube (MWCNT)/polystyrene (PS) or poly(methyl methacrylate) (PMMA) composites were successfully prepared by in situ emulsion polymerization under microwave irradiation using potassium persulfate as initiator. Then the composites were treated with tetrahydrofuran (THF) to remove the free polymers. The resultant PS or PMMA-wrapped MWCNT samples, which were soluble in common organic solvents such as 1,2-dichlorobenzene, THF, chloroform and others, have been well-characterized by TEM, thermal gravimetric analyses, FT-IR, UV–vis and Raman spectra. The optical limiting properties of the polymer-wrapped MWCNT samples were investigated by open-aperture z-scan method. All of the polymer modified MWCNT samples in chloroform showed much better optical limiting behavior than pristine MWCNT in chloroform. [Copyright &y& Elsevier]

Published
2007
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