The bulk-quantity 1D PANI nanowire/tubes were prepared as follows: analytical grade aniline (4 mmol) and tartaricacid (1 mmol) were dispersed in 10 mL of deionized water at room temperature with magnetic stirring for 15 min. Next, the aniline solution was cooled in an ice-water bath for 5 min. After that, 10 mL of oxidant aqueous solution containing 4 mmol of APS precooled in the ice-water bath for 5 min was poured into the aniline solution, and the polymerization reaction was carried out in the ice-water bath without agitation. After 12 h, the resulting dark green PANI was washed with deionized water and ethanol several times and was dried in a dynamic oven at 60 °C. The morphology and molecular structure of the as-synthesized PANI were characterized by field-emission scanning electron microscopy (FESEM, Sirion 200), transmission electron microscopy (TEM, JEOL-2010), and Fourier transform infrared spectroscopy (FTIR, JASCO FT-IR 410 spectrophotometer).
Ice bath. The purpose of placing something in an ice bath is to cool it. In most cases, this will be done after the reaction or after redissolving a solid during the recrystallization. The lower temperature decreases the solubility of your compound.
Follow these measures for safe and effective ice bathing:
1. Fill a tub with cold water. Fill a tub halfway with cold water and ice. ...
2. Stage your post-bath clothing. ...
3. Don the proper attire. ...
4. Set an alarm (optional). ...
5. Enter the ice bath. ...
6. Soak in the ice bath for up to fifteen minutes. ...
7. Get out and warm up.
Keeping the sodium borohydride (NaBH4) on ice will reduce the rate of decomposition during the experiment.
in general ,In the oxidation synthesis method, which is commonly used in organic chemistry to synthesize various compounds, an ice water bath is often used to control the reaction temperature. The conditions for the ice water bath typically involve preparing a mixture of ice and water in a suitable container, such as a beaker or a flask. The temperature of the ice water bath should be maintained at or below 5°C (41°F) during the oxidation reaction.
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