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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
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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 3â4, February 2011, Pages 298-306
Journal: Synthetic Metals - Volume 161, Issues 3â4, February 2011, Pages 298-306
نویسندگان
Panisara Worakitsiri, Orathai Pornsunthorntawee, Tuspon Thanpitcha, Sumaeth Chavadej, Christoph Weder, Ratana Rujiravanit,