Antibacterial Polyurethane with Elasticity, Method for Preparing the Same and Articles Comprising the Same

A method for preparing an elastic antibacterial polyurethane polymer, comprising:

• reacting (A) an isocyanate compound;
• and (B) a polyol comprising a polyether glycol and a diol represented by the following Chemical Formula 1.
• wherein the (B) polyol comprises 0.01 to 40 mol % of the diol represented by Chemical Formula 1:
• wherein, in Chemical Formula 1,
• R1 and R2 are each independently hydrogen, an alkyl group, a haloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an aryloxy group, an alkoxy group, an alicyclic structure, a heteroalicyclic structure, an alkylthio group, or an arylthio group,
• L1 and L2 are each independently an alkylene group, a heteroalkylene group, a cycloalkylene group, an arylene group, or a heteroarylene group,
• L3 is a direct bond, an alkylene group, a heteroalkylene group, a cycloalkylene group, an arylene group, or a heteroarylene group,
• the A is an alkylene group having more than 6 carbon atoms, and
• X− means an anion.