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| Preparation of Nano-fluorescent Polyimide Fibers by Electrospinning |
| Chuan-Xiang Qing, Si Cheng, Jian-Jun Wang, Xiao-Mei Wang, Guo-Qiang Chen |
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Abstract Today, many photosensitive polyimide (PI) materials have been studied for their excellent thermomechanical, low dielectric constants. So, two hemicyanine dyes, named as DHEASPBr-C4 and DHEASPBr - C8, have been synthesized in this paper and incorporated by doping to polyamic acid (PAA) in N, Ndimethylacetamide (DMA) solution to prepare for the fluorescent PI nanofibers. Firstly, PAA nanofibers were achieved using electrospinning process (ESP) at room temperature. 4 hours later, polyimide (PI) nanofibers have been successfully obtained by thermal imidization in vacuum oven while temperature was 200 0C and vacuum degree was 133 Pa. Results showed that the one-photon emission fluorescence peaks of two hemicyanine dyes in N, N—Dimethylformamide (DMF) solution were located at 606 nm and 613 nm respectively. While all mats consisted of those PAA nanofibers or PI nanofibers showed good fluorescent properties and their one-photon emission fluorescence spectra were located around 600 nm. So, nanofluorescent PI Fibers can be prepared by electrospinning technique.
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| Cite this article: |
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Chuan-Xiang Qing,Si Cheng,Jian-Jun Wang, et al. Preparation of Nano-fluorescent Polyimide Fibers by Electrospinning[J]. Journal of Fiber Bioengineering and Informatics, 2010, 2(4): 226-230.
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2010, Vol. 2 
