The investigation on bio-based polymer electrolytes (BBPEs) system based on alginate doped with a various composition of glycolic acid (GA) were carried out and prepared using solution casting technique. The BBPEs complexes were characterized by using fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC) and electrical impedance spectroscopy (EIS). The complexation was observed to have taken place between alginate and GA with apparent changes of the peak wavenumber, specifically at the –COO⁻ of alginate functional group. Moreover, from the impedance analysis, it is evident that the sample which contains 20 wt. % of GA possessed the optimum ionic conductivity of 5.32 × 10⁻⁵ S cm⁻¹ at room temperature with the lowest activation energy. The ionic conductivity increased by incorporating GA was demonstrated via the enhancement of their thermal stability as well as amorphousness. The findings of the present investigation suggest that alginate polymer has the potential to be applied as an electrolyte system for electrochemical devices applications.

进行了基于藻酸盐的生物基聚合物电解质（BBPEs）系统的研究，该藻酸盐掺杂了多种乙醇酸（GA）成分，并采用溶液流延技术制备。通过使用傅立叶变换红外（FTIR）光谱，X射线衍射（XRD），热重分析（TGA），差示扫描量热法（DSC）和电阻抗光谱（EIS）对BBPEs配合物进行表征。观察到的络合已采取藻酸盐和GA之间的地方，峰值波数的明显变化，特别是在-COO ^-藻酸盐官能团的。另外，从阻抗分析可知，含有20wt。％的样品含有20wt。％的样品。GA的％具有5.32×10 ^-5  S cm的最佳离子电导率室温下为^-1，活化能最低。通过增强GA的热稳定性和非晶性可以证明通过引入GA可以提高离子电导率。本研究的发现表明藻酸盐聚合物具有用作电化学装置应用的电解质系统的潜力。