以樟脑磺酸(CSA)为掺杂剂、过硫酸铵为氧化剂.在水溶液体系中通过苯胺原位聚合制得直径为300~600nm的聚苯胺纳米矩形管,其导电率为0.1~1S/cm.通过扫描电镜(SEM)和透射电镜(TEM)对产物的形貌进行表征.发现n(CSA)/n(ANi)将影响产物的形貌.利用傅立叶红外光谱(FT-IR)和紫外一可见光谱(Uv_vis)对聚苯胺分子结构进行表征,发现产物是质子化掺杂的聚苯胺.通过X射线衍射(XRD)分析发现,聚苯胺纳米矩形管比纤维结构具有更好的分子链排列规整性.
Polyaniline(PANI) nanotubes with rectangular cross section, which have 300~600nm in outer diameter and the conductivity of 0. l~1S/cm, are synthesized via a in-situ polymerization with (1S)-(+)-10-camphorsu-lfonic(D-CSA) as dopants. PANI nanotubes are characterized by SEM and TEM. The results show that the ratios of n(CSA)/n(ANi) greatly affect the morphology of PANI nanotubes. The structure of PANI nanotubes are characterized by FT-IR and UV-vis spectrum. The result indicates that prepared PANI nanotubes are in doped state. The X-ray diffraction(XRD) tests show that the molecules of PANI with rectangular nanotubes have high orientations and orderly arrangements.
参考文献
[1] | 景遐斌,王利祥,王献红,耿延候,王佛松.导电聚苯胺的合成、结构、性能和应用[J].高分子学报,2005(05):655-663. |
[2] | Wu C G;Bein T .Conducting polyaniline filaments in a mesoporous channel host[J].Science,1994,264:1757. |
[3] | Wan M X;Li J C;Li S Z .Microtubules of polyaniline as new microwave absorbent materials[J].Polymers For Advanced Technologies,2001,12:651. |
[4] | Xiong S X;Wang Q;Chen Y H .Study on electrical conductivity of single polyaniline microtube[J].Materials Letters,2007,61:2965. |
[5] | Ding, ZF;Currier, RP;Zhao, YS;Yang, DL .Self-Assembled Polyaniline Nanotubes with Rectangular Cross-Sections[J].Macromolecular chemistry and physics,2009(19):1600-1606. |
[6] | Li G C;Pang S P;Xie G G et al.Synthesis of radially aligned polyaniline dendrites[J].Polymer,2006,47:1456. |
[7] | Zhixiang Wei;Meixiwang Wan .Hollow Microspheres of Polyaniline Synthesized with an Aniline Emulsion Template[J].Advanced Materials,2002(18):1314-1317. |
[8] | Wei ZX.;Zhang ZM.;Wan MX. .Formation mechanism of self-assembled polyaniline micro/nanotubes[J].Langmuir: The ACS Journal of Surfaces and Colloids,2002(3):917-921. |
[9] | Ding H J;Wan M X;Wei Y .Controlling the diameter of polyaniline nanofibers by adjusting the oxidant redox potential[J].Advanced Materials,2007,19:465. |
[10] | 邓俊英,张志明,于良民,万梅香.自组装的氢氟酸掺杂的聚苯胺微/纳米管[J].高分子学报,2007(03):277-281. |
[11] | Sun Q H;Park M C;Deng Y L .Studies on one-dimensional polyaniline(PANI) nanostructures and the morphological evolution[J].Materials Chemistry and Physics,2008,110:276. |
[12] | Zhang ZM.;Wei ZX.;Wan MX. .Nanostructures of polyaniline doped with inorganic acids[J].Macromolecules,2002(15):5937-5942. |
[13] | Zhang LJ;Wan MX .Chiral polyaniline nanotubes synthesized via a self-assembly process[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2005(1/2):24-31. |
[14] | 龙云泽,陈兆甲,张志明,万梅香,郑萍,王楠林.纳米管结构聚苯胺的电阻率和磁化率[J].物理学报,2003(01):175-179. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%