Low-temperature side-chain cleavage and decarboxylation of polythiophene esters by acid catalysis

Roar Søndergaard, Kion Norrman, Frederik C Krebs

Research output: Contribution to journalJournal articleResearchpeer-review


Solubility switching of polymers is very useful in thin layer processing of conjugated polymers, as it allows for multilayer processing and increases the stability of the polymer. Acid catalyzed thermocleavage of ester groups from thiophene polymers carrying primary, secondary, and tertiary substituents have been examined by TGA‐MS using different sulphonic acids. A substantial lowering of the cleavage temperature is observed, and the ester cleavage can even be performed in situ on roll‐to‐roll‐coated films on polyethylene terephthalate (PET). © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
Original languageEnglish
JournalJournal of Polymer Science. Part A, Polymer Chemistry
Issue number6
Pages (from-to)1127-1132
Publication statusPublished - 2012

Bibliographical note

The authors thank the Danish Strategic Research Council (DSF
2104-07-0022) for financial support.


  • Tertiary ester
  • Thermogravimetric analysis (TGA)
  • Primary ester
  • Conducting polymers
  • Thermocleavage
  • Polythiophene ester
  • Low temperature
  • Secondary ester
  • Solubility switching
  • Ester cleavage
  • Decarboxylation
  • Acid catalysis
  • Catalysis


Dive into the research topics of 'Low-temperature side-chain cleavage and decarboxylation of polythiophene esters by acid catalysis'. Together they form a unique fingerprint.

Cite this