Synthesis of functionalized thermoplastic polyurethane through azide-alkyn click chemistry
발표자
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초록
내용
Thermoplastic polyurethane (TPU) functionalized with an azide group can control mechanical properties by introducing various functional groups through an azide-alkyne click reaction. In addition, the content of the azide group can be controlled, and accordingly, the amount of the functional group to be introduced can be controlled. To this end, a polyol containing a Cl group was synthesized(Poly(ECH-co-THF)diol), and a polyol containing an N3 group was synthesized by replacing the Cl group with an N3 group through an SN2 reaction(Poly(GAP-co- THF)diol). Here, by controlling the Cl group, the N3 group can be controlled. That is, the azide group of ATPU can also be regulated. In addition, the azide group of ATPU emits nitrogen in UV of 254 nm wavelength and is cured. There is a possibility of using this for photopatterning and increasing mechanical properties.