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

Xu, J. and Bellas, V. and Jungnickel, B.-J. and Stühn, B. and Rehahn, M. (2011):
Equilibrium Melting Temperature of Poly(ferrocenyl dimethylsilane) in Homopolymers and Lamellar Diblock Copolymers with Polystyrene.
211, In: MACROMOLECULAR CHEMISTRY AND PHYSICS, (11), pp. 1261-1271, ISSN 1022-1352, [Article]

Abstract

The equilibrium melting temperature, T-m,T-o, 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,T-o. The more reliable Gibbs Thomson approach results in a T-m,T-o = (215 +/- 11) degrees C for the PFDMS homopolymers, and a T-m,T-o = (179 +/- 5) degrees C for the PFDMS microphases in the lamellar PS-b-PFDMS diblock copolymer.

Item Type: Article
Erschienen: 2011
Creators: Xu, J. and Bellas, V. and Jungnickel, B.-J. and Stühn, B. and Rehahn, M.
Title: Equilibrium Melting Temperature of Poly(ferrocenyl dimethylsilane) in Homopolymers and Lamellar Diblock Copolymers with Polystyrene
Language: English
Abstract:

The equilibrium melting temperature, T-m,T-o, 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,T-o. The more reliable Gibbs Thomson approach results in a T-m,T-o = (215 +/- 11) degrees C for the PFDMS homopolymers, and a T-m,T-o = (179 +/- 5) degrees C for the PFDMS microphases in the lamellar PS-b-PFDMS diblock copolymer.

Journal or Publication Title: MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume: 211
Number: 11
Divisions: 05 Department of Physics > Institute for condensed matter physics > Experimental Condensed Matter Physics
05 Department of Physics > Institute for condensed matter physics
05 Department of Physics
Date Deposited: 17 May 2011 04:54
Identification Number: doi:10.1002/macp.200900718
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