Formation of nano-rod and nano-particles of polyaniline using Langmuir-Blodgett technique

被引：16

作者：

Manigandan, Sabapathy ^{[2
]}

Majumder, Saptarshi ^{[3
]}

Ganguly, Saibal ^{[2
]}

Kargupta, Kajari ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Chem Engn, Kolkata 700032, India

[2] Indian Inst Technol, Dept Chem Engn, Kharagpur 721302, W Bengal, India

[3] Tata Res Dev & Design Ctr, Pune 411001, Maharashtra, India

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

关键词：

polyaniline; nano-materials; nano-rod; nano-particle; doping; Langmuir-Blodgett films;

D O I：

10.1016/j.matlet.2008.01.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the formation of nano-structures especially nano-rod and nano-particles of polyaniline (PANI) using Langmuir-Blodgett (LB) technique of molecular deposition. Decrease in the pH of the sub-phase of LB trough increases level of doping (protonation) of polyaniline emeraldine base to emeraldine salt and causes doping induced nano-structure formation. High resolution transmission electron microscopy reveals that anisotropic rod like nano-structures of PANI of diameter less than 50 nm are formed at pH 1 while pH 3 induces the formation of dispersed nanoparticle of diameter 15 nm. On the contrary, connected lump (aggregation) type nano-structures of PANI are formed at a higher value of pH 6. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2758 / 2761

页数：4

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