Equilibrium Melting Temperature of Poly(ferrocenyl dimethylsilane) in Homopolymers and Lamellar Diblock Copolymers with Polystyrene
✍ Scribed by Jianjun Xu; Vasilios Bellas; Bernd Jungnickel; Bernd Stühn; Matthias Rehahn
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 363 KB
- Volume
- 211
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
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.
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