Glycol Gel with Tunable Tg and Mechanical Properties for Patterning
발표자
정수민 (POSTECH)
연구책임자
김연수 (POSTECH)
초록
내용
Glycol-based gels offer wide thermal operability, biocompatibility, and tunable mechanical properties, making them attractive for thermal-responsive applications. Using 1,3-butanediol (BG) as the solvent, we fabricated gels with an extended temperature range (freezing point: −57 °C; boiling point: 204 °C), enabling introduction of controllable glass transition temperatures (Tg). By adjusting monomer composition and concentration, Tg values from below 0 °C to over 100 °C were achieved. Through spatial patterning, distinct Tg domains were created within a single gel. Upon heating to intermediate temperatures, only the low-Tg regions soften and deform, while high-Tg areas remain rigid. This configuration allows rigid domains to support electronic components stably, while soft domains enable mechanical deformation. Fine-scale photopatterning using a photomask further enhanced spatial control over properties.