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HOMA GHEYBI
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Volume 41 Issue 1 February 2018 Article ID 0029
MARYAM NAZARI SAMIRA AGBOLAGHI HOMA GHEYBI SALEHEH ABBASPOOR FARHANG ABBASI
Poly(ethylene glycol) (PEG)–polyaniline (PANI) diblock and triblock copolymers were synthesized viacopolymerization of aniline with amine-terminated PEG by interfacial polymerization using sulphuric acid as dopant andammonium peroxydisulfate (APS) as well as potassium hydrogen diiodate (PHD) as oxidants. The PHD-based synthesizedPANI nanorods possessed longer lengths, narrower diameter distribution and higher conductivity. The electroactivity ofsynthesized copolymers was characterized using ultraviolet–visible (UV–Vis) spectrometry, cyclic voltammetry (CV) andresistivity measurement. Even in the presence of dielectric PEG blocks, the synthesized block copolymers had a conductivityaround 3 S cm$^{−1}$. In a further step, the solution-grown single crystals were prepared to investigate the general features ofgrafted PANI nanorods using small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM) and atomicforce microscopy (AFM). Based on AFM and SAXS analyses, the bimodal gel permeation chromatography (GPC) tracesobtained from the block copolymers were originated from the diameter distribution of nanofibres, not from the dispersity oftheir lengths and molecular weights.
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Bulletin of Materials Science
Volume 46, 2023
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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