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Synthesis of Various Molecular Weight Polyaniline by Controlled Nucleation Site Number  

Hong, Jang Hoo (Department of Fine Chemistry, Seoul National University of Technology)
Jang, Kwan Sik (Department of Fine Chemistry, Seoul National University of Technology)
Moon, Woo Yeon (Department of Fine Chemistry, Seoul National University of Technology)
Publication Information
Applied Chemistry for Engineering / v.17, no.5, 2006 , pp. 504-508 More about this Journal
Abstract
Molecular weight of polyaniline is controlled in the range of oligomer to low molecular weight by controlling the ratio of aniline dimer (p-aminodiphenylamine) to monomer. Aniline dimers act as nucleation sites in chain growth during the polymerization of aniline. The molecular weights of polyanilines are estimated by GPS and relative viscosity measurement. The physical and chemical properties of polyanilines with various molecular weights are studied by UV-Vis, FT-IR, and electrical conductivity measurements.
Keywords
polyaniline; nucleation sites; dimer; reaction rate; molecular weight;
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