| 초록 |
Stimuli-responsive polymers have received a lot of attention as a varied range of application as their properties flexible depending on the environment. Especially, temperature responsive polymer shows drastic change of solubility in given solvent; however, it usually has only one lower critical solution temperature (LCST) and responses to a certain temperature. Herein, we developed a wide range temperature sensor with three kinds of block copolymers (BCPs) composed of temperature responsive part and fluorescent dye part. Through three BCPs-integrated graphene oxide (MP-GO), the distances between GO and fluorescent dye were controlled independently by three linkers which have different LCST. Thus, the MP-GO showed temperature sensing behavior in range of 24 ~ 42 °C, and temperature dependent responses can be easily detected by their distinctive colorimetric changes. In addition, the MP-GO sensor exhibited excellent reversibility and dispersion stability in water, indicating that our system is an ideal platform for environmental and biological applications. |
