کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7874693 1509435 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of polyaniline nanofibers and nanotubes via rhamnolipid biosurfactant templating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Synthesis of polyaniline nanofibers and nanotubes via rhamnolipid biosurfactant templating
چکیده انگلیسی
Polyaniline (PANI) nanorods and nanotubes with average diameters in the range of 121 ± 12 nm to 152 ± 13 nm were synthesized by the oxidative polymerization of aniline using hydrochloric acid as a dopant, ammonium peroxodisulfate as an oxidant, and a rhamnolipid biosurfactant produced by Pseudomonas aeruginosa SP4 as a soft template. The reaction conditions were systematically varied with the objective to maximize the electrical conductivity and aspect ratio of the PANI nanofibers. Optimized conditions, which involved an acid concentration of 0.1 M, an ANI-to-biosurfactant weight ratio of 23:1, and a polymerization time of 6 h, afforded a material with an electrical conductivity of 25 ± 2 S/cm. This material also exhibited the highest degree of crystallinity of all studied samples and matched the electronic properties of a reference material made without the surfactant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 161, Issues 3–4, February 2011, Pages 298-306
نویسندگان
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