We have prepared an aqueous dispersion of poly(aniline-dodecyl benzene sulfonic acid complex) (PANI-DC) that has an intrinsic viscosity ([η]) near 1.3 dL/g using aniline as a monomer, dodecyl benzene sulfonic acid (DBSA) as a dopant/emulsifier, and ammonium peroxodisulfate (APS) as an oxidant. We found that the electrical conductivity of a PANI-DC pellet was 0.7 S/cm. A waterborne-polyurethane (WBPU) dispersion, obtained from isophorone diisocyanate/polytetramethylene oxide glycol/dimethylol propionic acid/ethylene diamine/triethylene amine, was used as a matrix polymer. We prepared blend films of WBPU/PANI-DC with variable weight ratios (from 99/1 to 66/34) by solution blending/casting and investigated the effects that the PANI-DC content has on the mechanical and dynamic mechanical properties, hardness, electrical conductivity, and antistaticity of these films. The tensile strength, percentage of elongation, and hardness of WBPU/PANI-DC blend films all decreased markedly upon increasing the PANI-DC content. The antistatic half-life time (τ 1/2 ) of pure WBPU film was about 110 s, but we found that those of WBPU/ultrasound-treated PANI-DC blend films decreased exponentially from 1.2 s to 0.1 s to almost 0 s upon increasing the PANI-DC content from 1 wt% to 15 wt% to *15 wt%, respectively.

A series of crosslinkable, waterborne polyurethanes (I-WBPUs) were prepared by in-situ polymerization using isophorone diisocyanate (IPDI)/poly(tetramethylene oxide) glycol (PTMG, M n =2,000)/ dimethylol propionic acid (DMPA)/ethylene diamine (EDA)/triethylamine (TEA)/aminoplast [hexakis(methoxymethyl)melamine (HMMM)] as a crosslinking agent. Typical crosslinkable, waterborne polyurethanes (B-WBPUs) blended from WBPU dispersion and aqueous HMMM solution was also prepared to compare with the I-WBPUs. The crosslinking reaction between WBPU and HMMM was verified using FTIR and XPS analysis. The effect of the HMMM contents on the dynamic mechanical thermal, thermal, mechanical, and adhesion properties of the I-WBPU and B-WBPU films were investigated. The storage modulus (E'), glass transition temperatures of the soft segment (T gs ) and the amorphous regions of higher order (T gh ), melting temperature (T m ), integral procedural decomposition temperature (IPDT), residual weight, T 10% and T 50% (the temperature where 10 and 50% weight loss occurred), tensile strength, initial modulus, hardness, and adhesive strength of both I-WBPU and B-WBPU systems increased with increasing HMMM content. However, these properties of the I-WBPU system were higher than those of the B-WBPU system at the same HMMM content. These results confirmed the in-situ polymerization used in this study to be a more effective method to improve the properties of the WBPU materials compared to the simple blending process.

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Organic acceptor material has been developed based on soluble perylene derivative for an organic solar cell. Asymmetric perylene derivatives with an imide and an imidazole group produce absorption spectra close to poly(3‐hexylthiophene) (P3HT) as a donor material. The frontier energy levels of the perylene derivatives can adjust to reasonable charge transmission within a blended polymer layer through the introduction of substituents such as alkoxy, nitro and alkoxycarbonyl group. The nitro group unlike the others leads to the exceeding decrement of the frontier energy levels, which would be unfavorable for efficient charge transfer. Cyclic voltammetry analysis is performed to determine the energy levels of the perylene derivatives.