Selvanathan Vidhya, Ruslan Mohd Hafidz, Aminuzzaman Mohammod, Muhammad Ghulam, Amin N, Sopian Kamaruzzaman, Akhtaruzzaman Md
Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Malaysia.
Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), Perak Campus, Jalan Universiti, Bandar Barat, Kampar 31900, Perak D. R., Malaysia.
Polymers (Basel). 2020 Sep 22;12(9):2170. doi: 10.3390/polym12092170.
A starch-resorcinol-formaldehyde (RF)-lithium triflate (LiTf) based biodegradable polymer electrolyte membrane was synthesized via the solution casting technique. The formation of RF crosslinks in the starch matrix was found to repress the starch's crystallinity as indicated by the XRD data. Incorporation of the RF plasticizer improved the conductivity greatly, with the highest room-temperature conductivity recorded being 4.29 × 10 S cm achieved by the starch:LiTf:RF (20 wt.%:20 wt.%:60 wt.%) composition. The enhancement in ionic conductivity was an implication of the increase in the polymeric amorphous region concurrent with the suppression of the starch's crystallinity. Chemical complexation between the plasticizer, starch, and lithium salt components in the electrolyte was confirmed by FTIR spectra.
通过溶液浇铸技术合成了一种基于淀粉-间苯二酚-甲醛（RF）-三氟甲磺酸锂（LiTf）的可生物降解聚合物电解质膜。如XRD数据所示，发现淀粉基质中RF交联的形成抑制了淀粉的结晶度。RF增塑剂的加入极大地提高了电导率，淀粉:LiTf:RF（20 wt.%:20 wt.%:60 wt.%）组成的样品在室温下记录到的最高电导率为4.29×10 S cm 。离子电导率的提高意味着聚合物无定形区域的增加以及淀粉结晶度的抑制。FTIR光谱证实了电解质中增塑剂、淀粉和锂盐成分之间的化学络合。
