Synthesis of poly{[bis(diethynylphenyl)silylene]phenylene}s with highly heat-resistant properties and an application to conducting materials

Poly{[bis(3,5-diethynylphenyl)silylene]-p-phenylene} whose TGA showed extremely high heat-resistance in N2 (Td5=791 °C, weight loss at 1000 °C=6%), was prepared. When a polymer film on a quartz plate was heated at 1200 °C, a conducting film (9 S/cm) was obtained.