ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): Rajeshwari Jaiswal, Reena Bhadani

Email(s): rajeshwarijaiswal06@gmail.com , rbhadani04@gmail.com

DOI: 10.52711/0974-4150.2025.00025   

Address: Rajeshwari Jaiswal, Reena Bhadani
Department of Chemistry, Ranchi Women’s College, Ranchi University, Ranchi, Jharkhand, India.
*Corresponding Author

Published In:   Volume - 18,      Issue - 3,     Year - 2025


ABSTRACT:
This study presents the fabrication of polyaniline–polyacrylamide (PANI–PAM) composite hydrogels through the radical-oxidative polymerization of polyaniline within an insulating hydrogel matrix featuring variable pore sizes. The incorporation of PANI into the pores imparts electroactive properties to the resulting composite material. Field Emission Scanning Electron Microscopy (FESEM) was used to investigate the morphology and distribution of PANI particles embedded in the semi-transparent, colored hydrogel network. Cross-linked polyacrylamide(cPAM) and polyaniline (PANI) are the most widely used materials in this context due to the accessibility of their monomers, simplicity of synthesis, and desirable mechanical and electrical properties. Their combination enhances both sets of properties, with cPAM contributing flexibility and PANI providing electrical conductivity. Typically, the composite is synthesized by forming the hydrogel via radical polymerization—often using redox initiators followed by the oxidative polymerization of aniline within the gel matrix. The resulting structure is often described as a semi-interpenetrating polymer network (s-IPN), where linear PANI chains permeate the cPAM framework. However, evidence suggests that the nanopores in these hydrogels may actually exhibit microporous characteristics. This work will explores recent advancements in these nanocomposite hydrogels (NCHs), discussing current theories of electrical conduction, identifying challenges, and highlighting strategies to enhance conductivity in such hybrid systems.


Cite this article:
Rajeshwari Jaiswal, Reena Bhadani. Analytical Investigation of Electrically Conducting 3-D Soft Material Triggered by Conc.HNO3. Asian Journal of Research in Chemistry.2025; 18(3):155-2. doi: 10.52711/0974-4150.2025.00025

Cite(Electronic):
Rajeshwari Jaiswal, Reena Bhadani. Analytical Investigation of Electrically Conducting 3-D Soft Material Triggered by Conc.HNO3. Asian Journal of Research in Chemistry.2025; 18(3):155-2. doi: 10.52711/0974-4150.2025.00025   Available on: https://ajrconline.org/AbstractView.aspx?PID=2025-18-3-7


5. REFERENCES:
1.    Tang, Q., Wu, J., Sun, H., Lin, J., Fan, S., and Hu, D. Polyaniline/ polyacrylamide conducting composite hydrogel with a porous structure. Carbohydrate Polymers. 2008; 74(2): 215–219.
2.    Lira, L. M., and Córdoba de Torresi, S. I. Conducting polymer–hydrogel composites for electrochemical release devices: Synthesis and characterization of semi-interpenetrating polyaniline –polyacrylamide network. Electrochemistry Communications. 2005; 7(7): 717–723.
3.    Li, Y., Liu, X., Yang, Y., Qian, C., Chen, C., Han, L., and Han, Q. A stretchable and self-healable conductive hydrogel based on gelation/polyacrylamide/polypyrrole for all-in-one flexible supercapacitors with high capacitance. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2022; 636: 128145. 
4.    Alam, A., Kuan, H.C., Zhao, Z., Xu, J., and Ma, J. Novel polyacrylamide hydrogels by highly conductive, water-processable graphene. Composites Part A: Applied Science and Manufacturing. 2017; 93: 1–9. 
5.    Kougkolos, G., Golzio, M., Laudebat, L., Valdez-Nava, Z., and Flahaut, E. Hydrogels with electrically conductive nanomaterials for biomedical applications. Journal of Materials Chemistry B. 2023; 11(10): 2027–2278. 
6.    Sabbagh, F., Mahmoudi Khatir, N., Khodaeyan Karim, A., Omidvar, A., and Naz, Z. Mechanical properties and swelling behavior of acrylamide hydrogels using montmorillonite and kaolinite as clays. Journal of Environmental Treatment Techniques. 2019; 7(2): 211–219.
7.    Bajpai, A. K., Bajpai, J., and Soni, S. N. Preparation and characterization of electrically conductive composites of poly (vinyl alcohol)-g-poly (acrylic acid) hydrogels impregnated with polyaniline (PANI). eXPRESS Polymer Letters. 2008; 2(1): 26–39.
8.    Bhadani, R., Kumari, M., Baranwal, P. P., and Bhadani, S. N. Electrochemical polymerization of pyrrole and aniline on some commodity metals. Journal of Polymer Materials. 2002; 19: 93–102.
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