Skip to main content
. 2017 Aug 22;2(8):4800–4807. doi: 10.1021/acsomega.7b00670

Table 2. Contact Angle and Dielectric Properties of the Synthesized PEIs.

PEI ID contact angle (deg) thickness (μm) Dk (1 MHz) Df (1 MHz)
PMDA/PSNH2 83.11 43 2.7 0.015
ODPA/PSNH2 81.11 46 2.6 0.016
6FDA/PSNH2 85.30 51 2.6 0.015
PMDA/PFNH2 87.89 10 NAa NAa
ODPA/PFNH2 84.79 41 2.4 0.010
6FDA/PFNH2 89.61 46 2.4 0.009
a

The film is too thin for measurement.