| 초록 |
The composites of hydrogel and silicone could be a solution for the defects of each other, mechanical properties and hydrophobicity. With introduction of responsive material, the composites could find future applications in the biomedical fields or soft robotics. In here, temperature-responsive composites with well mixed structures of Poly(N-isopropylacrylamide) (PNIPAM) hydrogel and polydimethylsiloxane (PDMS) were fabricated by directional melt crystallization to obtain 3-D continuous porous PNIPAM and infiltrating PDMS into the pores of hydrogel. When swelling, PNIPAM phase became obvious, distinctly different from PDMS, which could not be found at the dry state. Volume transition of composites became faster than that of PNIPAM. Especially, significant bending moment of anisometric layered composites was found due to the lower critical solution temperature (LCST) of PNIPAM. This class of materials could be an interesting bridge between hydrophobic and hydrophilic materials |
