New Semifluorinated Siloxane-Grafted Copolyimides: Synthesis and Comparison with Their Linear Analogs

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Anindita Ghosh - , Leibniz Institute of Polymer Research Dresden (Author)
  • Susanta Banerjee - , Indian Institute of Technology Kharagpur (Author)
  • Hartmut Komber - , Leibniz Institute of Polymer Research Dresden (Author)
  • Liane Haeussler - , Leibniz Institute of Polymer Research Dresden (Author)
  • Konrad Schneider - , Leibniz Institute of Polymer Research Dresden (Author)
  • Brigitte Voit - , Leibniz Institute of Polymer Research Dresden (Author)

Abstract

A siloxane-grafted new diamino monomer DBPDMS has been prepared and used as a co-monomer in combination with the fluorinated diamine monomer TFBB to prepare siloxane-grafted polyimides. The polymers have been characterized by means of GPC, IR, and NMR. Their thermal, mechanical, and surface properties have been evaluated and compared with the homopolyimide and with polyimides where polysiloxane is incorporated in the main chain. DSC revealed melting of the grafted siloxane chain at sub-ambient temperature and a glass transition corresponding to the main polymer chain at high temperature. Isothermal gravimetric analysis at 350 degrees C indicated that grafted siloxane moiety can be removed thermally from the polymer chain without affecting the polymer backbone.

Details

Original languageEnglish
Pages (from-to)391-400
Number of pages10
JournalMacromolecular materials and engineering
Volume296
Issue number5
Publication statusPublished - 18 May 2011
Peer-reviewedYes
Externally publishedYes

External IDs

Scopus 79955826711
ORCID /0000-0002-4531-691X/work/148607840

Keywords

Keywords

  • Fluoropolymers, Graft copolymers, Mechanical properties, Polyimides, Thermal properties

Library keywords