Thermal property of regioregular poly(3-hexylthiophene)/nanotube composites using modified single-walled carbon nanotubes via ion irradiation

被引:32
作者
Adhikari, A. R. [1 ]
Huang, M.
Bakhru, H.
Chipara, M.
Ryu, C. Y.
Ajayan, P. M.
机构
[1] SUNY Albany, Coll Nanoscale Sci & Engn, Albany, NY 12203 USA
[2] Univ Texas Pan Amer, Dep Phys & Geol, Edinburg, TX 78451 USA
[3] Rensselaer Polytech Inst, Dept Chem & Chem Biol, Troy, NY 12180 USA
[4] Troy & Rensselaer Polytech Ctr, Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA
关键词
D O I
10.1088/0957-4484/17/24/008
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effects of radiation-induced modifications on the thermal stability and phase transition behaviour of composites made of 1% pristine or ion irradiated single-walled carbon nanotubes (SWNTs) and poly(3-hexylthiophene) (P3HT) are reported. Thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), Raman spectroscopy and electron spin resonance (ESR) were used to investigate the radiation-induced functionalization of carbon nanotubes and to assess the effect of ionizing radiation on the adhesion between macromolecular polymer and carbon nanotubes. Irradiation was used to introduce defects in a controlled way solely within pristine nanotubes before composite synthesis. The addition of irradiated SWNTs to a polymer matrix was found to enhance thermo-oxidative stability and phase transition behaviour. Further, ESR studies demonstrate the electronic interaction through charge transfer between filler and matrix. These results could have immense applications in nanotube composite processing. Based on the experimental data, a model for the interaction between polymeric chains and carbon nanotubes is proposed.
引用
收藏
页码:5947 / 5953
页数:7
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