| 摘要 |
An electrostatic dissipative polymer having excellent light stability (less UV induced yellowing) as well as permanent electrostatic dissipative properties and polymer mixture thereof are disclosed. The electrostatic dissipative polymer comprises polyether based oligomer containing ethylene oxide, aliphatic diisocyanate and C2-C10 chain extender containing primary hydroxyl or amine terminal group. Preferably, the number- average molecular weight (Mn) of polyether based oligomer containing ethylene oxide is 500 to 10000. Preferably, the polyether based oligomer is selected from the group consisting of (i) linear homopolymer having a main chain consisting of ethylene oxide, and hydroxyl or amine terminal groups, (ii) linear copolymer having a main chain consisting of ethylene oxide and different kind of monomer, and hydroxyl or amine terminal groups, and (iii) mixture thereof. |
