| 초록 |
The thermoplastic polyurethane (TPU) which can provide great mechanical properties and processibility has been applied in various field of applications. Despite of these advantages, it is difficult to introduce specific functions into polymer due to the lack of functional groups in chain. Herein, we have prepared azido-TPU which can additionally be modified with useful functional groups using click reaction. As a representative application, chromic dyes having triple bond have been prepared and introduced into azido TPU. Along with great processibility of TPU, chromic polymeric materials which can change their color against external stimulus in the form of fiber or films can be produced. Additionally, amount of dye in azido-TPU can be controlled by adjusting amount of reactant. The chromic polymeric platforms can be sensitive against UV light, and thus functionalized TPU platform could be used for various applications, for example, UV sensible and protectable clothes and secret code. |
