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Dynamics of Linear Chains in Polymer Networks as a Model for Drug Delivery Systems: Preliminary Results

Author(s): Mustapha B and Farida B

Dynamic properties of cross linked polymer networks and gels are the subject of a particular interest in drug delivery applications. Here, we report preliminary results considering the effects of combined relaxations of network (as host) and linear chains (as guest). These combined relaxations are analyzed in terms of fast (host driven) and slow (guest driven) modes through response functions derived from linear response theory and accessible by quasi elastic scattering or fluorescence confocal spectroscopy. Preliminary results of the variations of frequencies and amplitudes of the modes are given under a variety of conditions depending on the polymer concentration, degree of miscibility and relative sizes of chains and network strands.

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