| 초록 |
Poly(styrenesulfonic acid) (PSSA) have been the most successful polyanionic polyelectrolyte for poly(3,4-ethylenedioxythiophene (PEDOT). In this work, we investigated the electrical properties of PEDOT:PSS affected by PSSA have different molecular weight distribution. Herein we polymerized PSSA with two different mechanisms, free radical polymerization process and Atom Transfer Radical Polymerization (ATRP) process. PSSA which have different molecular weight distribution was successfully polymerized by free radical polymerization process and ATRP process. Dispersity (Mn/Mw) value of PSSA with free radical process was approximately 2.3 ~ 2.8 and dispersity value of PSSA with ATRP process was approximately 1.2 ~ 1.6. Molecular weight and molecular weight distribution is measured by Gel permeation chromatography(GPC). The electrical conductivity of PEDOT:PSS is increased by a factor of 0.15 ~ 0.3 (15% ~ 30%) by applying PSSA which has narrow molecular weight distribution. |
