Synthesis of novel fluorescent molecule and its polymeric form with aniline as fluorescent and supercapacitor electrode materials,Polymers for Advanced Technologies

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Synthesis of novel fluorescent molecule and its polymeric form with aniline as fluorescent and supercapacitor electrode materials
Polymers for Advanced Technologies ( IF 3.1 ) Pub Date : 2020-03-07 , DOI: 10.1002/pat.4882
Sangam Naidu Karri _{1,

2} , Sai Prasad Ega _{1,

2} , Palaniappan Srinivasan _{1,

2}

Affiliation

In this study, a fluorescent material, 2‐naphthyl‐4‐amino benzoate, is synthesized by the esterification of 4‐aminobenzoic acid with 2‐naphthol. This molecule is used in the bulk polymerization of aniline, which results in the formation of poly(aniline‐2‐naphthyl‐4‐aminobenzoate). For comparison, polyaniline and also poly(aniline‐4‐aminobenzoic acid) salts are prepared via bulk polymerization. Formation and properties of these polymeric materials are evaluated by Fourier‐transform infrared (FT‐IR), ¹³C nuclear magnetic resonance, matrix‐assisted laser desorption ionization, UV‐Vis, Fluorescence, X‐ray diffraction (XRD), Field emission‐scanning electron microscopy (FE‐SEM), Differential scanning calorimetry (DSC), thermogravimetric analysis, electrical resistance and electrochemical techniques. P(ANI‐2NA4ABA) is obtained in nanofiber morphology in 106 wt% yield with respect to the amount of aniline used with comparable conductivity of conventional polyaniline salts. This polymer salt is stable up to 220°C and indicates melting at 146°C on heating and crystal formation at 128°C on cooling. This polymer shows higher wavelength fluorescence compared to the conventional polyaniline salts. This polymer is used as an electrode material without binder, which shows a specific capacitance of 360 F g⁻¹ at 0.25 A g⁻¹.

中文翻译：

以苯胺为荧光和超级电容器电极材料的新型荧光分子及其聚合形式的合成

在这项研究中，通过4-氨基苯甲酸与2-萘酚的酯化反应合成了一种荧光材料2-萘-4-氨基苯甲酸酯。该分子用于苯胺的本体聚合，导致形成聚（苯胺-2-萘基-4-氨基苯甲酸酯）。为了进行比较，通过本体聚合制备了聚苯胺盐以及聚（苯胺-4-氨基苯甲酸）盐。这些聚合材料的形成和性质通过傅立叶变换红外（FT-IR）进行评估，¹³C核磁共振，基质辅助激光解吸电离，UV-Vis，荧光，X射线衍射（XRD），场发射扫描电子显微镜（FE-SEM），差示扫描量热法（DSC），热重分析，电阻和电化学技术。P（ANI-2NA4ABA）以纳米纤维形态获得，相对于所用苯胺的量，具有106重量％的收率，具有与传统聚苯胺盐相当的电导率。该聚合物盐在高达220°C的温度下是稳定的，加热后在146°C熔融，在冷却后在128°C晶体形成。与常规聚苯胺盐相比，该聚合物显示出更高的波长荧光。该聚合物用作不含粘合剂的电极材料，在0.25 A g时显示出360 F g ^-1的比电容^-1。

更新日期：2020-03-07

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