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Structure and dynamics of poly(carbosilane) dendrimers as revealed by pulsed field gradient NMR technique

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Abstract

The self-diffusion of poly(carbosilane) dendrimer macromolecules solutions in the high-concentration region starting from the polymer block was investigated by pulsed field gradient nuclear magnetic resonance techniques. A restriction of diffusion was observed for the concentration region of 50–95 wt% of dendrimer in tetrachloride CCl4 solutions. This phenomenon has been explained by the formation of solutions at a thermodynamical nonequilibrium. A theoretical approach on the basis of thermodynamics and statistical mechanics was developed.

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Authors and Affiliations

  1. Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Moscow, Russian Federation

    M. A. Krykin, N. M. Surin, A. M. Muzafarov & A. N. Ozerin

  2. Laboratory of Membrane Processes, Karpov Institute of Physical Chemistry, 44 Ozernaya ulitsa, 119361, Moscow, Russian Federation

    V. I. Volkov & L. A. Ozerina

  3. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation

    E. V. Volkov

Authors
  1. M. A. Krykin
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  2. V. I. Volkov
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  3. E. V. Volkov
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  4. N. M. Surin
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  5. L. A. Ozerina
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  6. A. M. Muzafarov
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  7. A. N. Ozerin
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Krykin, M.A., Volkov, V.I., Volkov, E.V. et al. Structure and dynamics of poly(carbosilane) dendrimers as revealed by pulsed field gradient NMR technique. Appl. Magn. Reson. 29, 459 (2005). https://doi.org/10.1007/BF03167176

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  • DOI: https://doi.org/10.1007/BF03167176

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