Stiffness, strength and adhesion characterization of electrochemically deposited conjugated polymer films.

ABSTRACT: Conjugated polymers such as poly(3,4-ethylenedioxythiphene) (PEDOT) are of interest for a variety of applications including interfaces between electronic biomedical devices and living tissue. The mechanical properties, strength, and adhesion of these materials to solid substrates are all vital for long-term applications. We have been developing methods to quantify the mechanical properties of conjugated polymer thin films. In this paper, the stiffness, strength and the interfacial shear strength (adhesion) of electrochemically deposited PEDOT and PEDOT-co-1,3,5-tri[2-(3,4-ethylene dioxythienyl)]-benzene (EPh) were studied. The estimated Young's modulus of the PEDOT films was 2.6±1.4GPa, and the strain to failure was around 2%. The tensile strength was measured to be 56±27MPa. The effective

SUBMITTER: Qu J 

PROVIDER: S-EPMC4728054 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature