| 초록 |
Benzophenon (BP) is a well-known photo active materials to induce cross-linking of polymer chains under UV light. Although BP incorporated polymers may show lower solubility in water, slow swelling kinetics, in this work we have incorporated BP moiety into the photo-crosslinkable polymers. To increase the water solubility of the synthesized polymers PNIPAm has been grafted as the hydrophilic unit in the polymer backbone, and we have successfully fabricated the UV-induced hydrogels by the synthesized copolymers. It was observed that the fabricated hydrogels showed enhanced swelling kinetics and temperature induced volume changes of the hydrogels were also confirmed suggesting spatial control can be possible with the prepared photo-crosslinkable grafted copolymers. These polymers can be advantageous to develop hydrogels that can respond to multiple stimuli for the fabrication of fast responding origami patterns and actuators etc. |
