采用原位聚合方法制备聚(2-甲氧基-5-辛氧基)对苯乙炔(PMOCOPV)/二氧化铁钛TiO_2)纳米复合材料.利用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)和热失重(TG)等方法对纳米复合材料的微观结构与性能进行表征.结果显示,纳米复合材料中TiO_2并不是简单地与PMOCOPV,分子共混,而是被PMOCOPV分子链缠绕包裹;纳米复合材料为分散均匀的球形微粒,粒径尺寸为60nm～80 nm左右;同PMOCOPV相比,纳米复合材料结晶性随着TiO_2含量增加而增强,且热稳定性提高.
Poly (2-methoxy-5-octoxy)-p-phenylene vinylene (PMOCOPV)/titanium dioxide (TiO_2) nanocomposites with different contents of TiO_2 nanoparticles were prepared by in-stiu polymerization and their microcosmic structure and properties were characterized by scanning electron microscope (SEM), tunneling electron microscope (TEM), X-ray diffraction (XRD) and thermogravimetry (TG). The results show that TiO_2 nanoparticles are not blended with PMOCOPV simply but encapsulate by PMOCOPV. The nanocomposites are spheric particles that disperse uniformly and the diameter of nanocomposites is around at 60 nm～80 nm. The crystallinity of nanocomposites is improved with the increase of content of TiO_2 nanoparticles and the thermal stability of nanocomposites is also enhanced in contrast to PMOCOPV.
参考文献
| [1] | Junjun Li;Sang II Seok;Baojin Chu;Fatih Dogan;Qiming Zhang;Qing Wang .Nanocomposites Of Ferroelectric Polymers With Tio_2 Nanoparticles Exhibiting Significantly Enhanced Electrical Energy Density[J].Advanced Materials,2009(2):217-221. |
| [2] | Dawidczyk TJ;Walton MD;Jang WS;Grunlan JC .Layer-by-layer assembly of UV-resistant poly(3,4-ethylenedioxythiophene) thin films[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(15):8314-8318. |
| [3] | Yi-Hung Chen;Yi-You Liu;Rong-Hsien Lin;Fu-Shan Yen .Photocatalytic Degradation Of P-phenylenediamine With Tio_2-coated Magnetic Pmma Microspheres In An Aqueous Solution[J].Journal of hazardous materials,2009(2/3):973-981. |
| [4] | 李宝铭,吴洪才,李晓奇,董发昕.PMOCOPV/TiO2纳米复合材料的制备及发光性能[J].半导体光电,2005(05):415-417. |
| [5] | 邓晓燕,崔作林,杜芳林,彭春.纳米二氧化钛的热分析表征[J].无机材料学报,2001(06):1089-1093. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%