The Effect of Hard-Segment Chemistry on Phase-Separation of Single-IonConducting Polyurethanes

Single-ion conducting polyurethane (SICPU) based polymer electrolytes have attracted increasinginterest in lithium-ion batteries due to their flexibility, excellent mechanical strength, facilemodification, and high thermal and electrochemical stability. The present study aimed to synthesizevarious SICPUs with different macromolecular designs and study the effect of hard segmentchemistry on the degree of phase separation of synthesized SICPUs. The SICPUs were synthesizedusing polyethylene glycol as a soft segment, hexamethylene diisocyanate (HDI), isophoronediisocyanate (IPDI), and toluene diisocyanate (TDI) as a hard segment. The study revealed thatSICPU with HDI aliphatic linear hard segment possesses a higher degree of phase separation andhydrogen bonding due to the symmetrical, linear, and planar structure of HDI

کلیدواژه ها:

Polyurethane ، Single-ion ، Synthesis ، Phase separation