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Thermosensitive Water–Polymer Systems Studied by Luminescent Spectroscopy. Copolymers of N-vinylcaprolactam and N-vinylpyrrolidone

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Abstract

Thermosensitive aqueous solutions of N-vinylcaprolactam/N-vinylpyrrolidone (co)polymers were investigated by luminescent spectroscopy. Investigation of the luminescent intensity and the bound fraction of luminescence indicators interacting to the (co)polymers in water showed that the chemical structure of the water-soluble poly-N-vinylamides defines their functional and structural characteristics such as conformation, intramolecular mobility, compactization and complexation. It was established that the complexing ability of VCL-VP copolymers exceeds that of PVP even at a low content of VCL units. At 85 mol% of VCL the complexation and compactization of the macromolecules were found to be higher than that of pure PVCL. A hinge-like action of VP units incorporated in PVCL structure is suggested to be a reason of the extreme behavior observed for 85:15 VCL:VP composition.

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Authors and Affiliations

  1. Karpov Institute of Physical Chemistry, Vorontzovo Pole 10, 106034, Moscow, Russia

    N. A. Yanul & Yu. E. Kirsh

  2. Institute of Macromolecular Compounds, Russian Academy of Science, Bolshoi pr. 31, 199004, St.-Petersburg, Russia

    E. V. Anufrieva

Authors
  1. N. A. Yanul
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  2. Yu. E. Kirsh
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  3. E. V. Anufrieva
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Yanul, N.A., Kirsh, Y.E. & Anufrieva, E.V. Thermosensitive Water–Polymer Systems Studied by Luminescent Spectroscopy. Copolymers of N-vinylcaprolactam and N-vinylpyrrolidone. Journal of Thermal Analysis and Calorimetry 62, 7–14 (2000). https://doi.org/10.1023/A:1010180624147

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