TY - JOUR
T1 - Soluble and methane sulfonic acid doped poly(diphenylamine) - Synthesis and characterization
AU - Wen, Ten Chin
AU - Chen, Jia Bin
AU - Gopalan, A.
N1 - Funding Information:
The authors are grateful to the National Science Council in Taiwan for its financial support through NSC 89-2214-E-006-048.
PY - 2002/12
Y1 - 2002/12
N2 - Diphenylamine (DPA) was polymerized by electrochemical and chemical methods in 3 M methane sulfonic acid (MeSA). Cyclic voltammetry was used for simultaneous synthesis and characterization of poly(diphenylamine), PDPA. In-situ spectroelectrochemical study on polymerization of DPA was made to identify the PDPA formation. The UV-visible spectrum recorded during electropolymerization reveals the existence of poly(p-diphenylene) and polyaniline (PANI) units through absorption bands around 380, 470 and 570 nm. PDPA was found to be doped by MeSA. X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) were used to determine the doping level of PDPA by MeSA. The presence of S peak in survey level XPS of PDPA and definite weight loss (13%) equivalent to doping level as noticed through thermogram of PDPA support the doped nature of PDPA. The MeSA-doped PDPA was found to be soluble in N,N′-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methylpyrrolidinone (NMP) and tetrahydrofuran (THF).
AB - Diphenylamine (DPA) was polymerized by electrochemical and chemical methods in 3 M methane sulfonic acid (MeSA). Cyclic voltammetry was used for simultaneous synthesis and characterization of poly(diphenylamine), PDPA. In-situ spectroelectrochemical study on polymerization of DPA was made to identify the PDPA formation. The UV-visible spectrum recorded during electropolymerization reveals the existence of poly(p-diphenylene) and polyaniline (PANI) units through absorption bands around 380, 470 and 570 nm. PDPA was found to be doped by MeSA. X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) were used to determine the doping level of PDPA by MeSA. The presence of S peak in survey level XPS of PDPA and definite weight loss (13%) equivalent to doping level as noticed through thermogram of PDPA support the doped nature of PDPA. The MeSA-doped PDPA was found to be soluble in N,N′-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methylpyrrolidinone (NMP) and tetrahydrofuran (THF).
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U2 - 10.1016/S0167-577X(02)00779-6
DO - 10.1016/S0167-577X(02)00779-6
M3 - Article
AN - SCOPUS:0036890501
SN - 0167-577X
VL - 57
SP - 280
EP - 290
JO - Materials Letters
JF - Materials Letters
IS - 2
ER -