Electromagnetic Heating

Abstract

In this study, we demonstrated the surface modification of carbon microcoil (CMC) with grafting polymers onto the CMC and prepared composite material of poly(N-isopropyl acrylamide) (PNIPAM) gel as thermo-sensitive polymer gels by electromagnetic heating. The properties of the material such as content of carbon micro-coils, swelling ratio, breaking strength, and thermo-sensitivity, and its function as drug carrier were evaluated. The composite gels were shrunken with increase of temperature as well as normal PNIPAM gel and responded to electromagnetic waves with the presence of contained CMCs which absorb electromagnetic waves and generate heat. The surface temperature of composite gel was reached 43° C within 150 s and changed its shape with squeezed water.