Equilibrium Melting Temperature of Poly(ferrocenyl dimethylsilane) in Homopolymers and Lamellar Diblock Copolymers with Polystyrene

The equilibrium melting temperature, T m,0 , of poly(ferrocenyl dimethylsilane) (PFDMS) is re‐investigated using two PFDMS homopolymers and a PS‐ b ‐PFDMS copolymer (PS: polystyrene). The melting temperatures of samples crystallized at different crystallization temperatures, T c , were found to depend in a nonlinear fashion on T c . Consequently, the Hoffmann–Weeks approach fails in determining T m,0 . The more reliable Gibbs–Thomson approach results in a T m,0  = (215 ± 11) °C for the PFDMS homopolymers, and a T m,0  = (179 ± 5) °C for the PFDMS microphases in the lamellar PS‐ b ‐PFDMS diblock copolymer.