[13p-N202-1~7] 3.4 Biomedical optics

▲ [13p-N202-3] Evaluation of the Hydration State of Polyethylene Glycol Solutions by Wide-range Dielectric Spectroscopy.

〇(M2)Junru Hu¹, Kaijie Ma¹, Hiroyasu Yamahara¹, Hitoshi Tabata¹ (1.Univ. Tokyo)

Keywords:Broadband dielectric spectrum, Hydration, Polyethylene glycol

Hydration in aqueous polyethylene glycol (PEG) solutions with various molecular weights were evaluated using broadband dielectric spectroscopy (100 MHz – 18 THz). With the increase of the molecular weight, the restriction strength of hydration waters becomes stronger, while the number of hydration waters decreases. The evaluation results explain an application that the contact lens package solution to employ PEG with low molecular weights.