Isothermal Titration Calorimetry of Supramolecular Polymers | Zendy

Alix Arnaud | Zendy; Laurent Bouteiller | Zendy

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Isothermal Titration Calorimetry of Supramolecular Polymers

Author(s) -

Alix Arnaud,

Laurent Bouteiller

Publication year - 2004

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la049365d

Subject(s) - isothermal titration calorimetry , titration , enthalpy , supramolecular chemistry , calorimetry , chemistry , polymer , solvent , isothermal process , supramolecular polymers , fourier transform infrared spectroscopy , analytical chemistry (journal) , thermodynamics , molecule , organic chemistry , chemical engineering , physics , engineering

A method to characterize the self-association of supramolecular polymers by isothermal titration calorimetry (ITC) has been designed. Association constants in the range 10(4)-10(6) dm(3) mol(-1) have been successfully determined from the heat exchange occurring when a supramolecular polymer solution is injected into a calorimetric cell containing pure solvent. Very good agreement with literature values has been obtained. Compared to other techniques (such as NMR or Fourier transform infrared spectroscopy), the use of ITC presents several advantages: (i) the enthalpy of association is obtained together with the association constant from the same experiment, (ii) the measurements can be performed in almost any solvent, and (iii) systems with higher association constants can be characterized.

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