Synthesis and photochromic behavior of some azo-polysiloxanes modified with nucleobases or donor-acceptor groups |
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Authors: | Ramona Enea Ana-Maria Resmeriţă Laura Petraru Cristian Grigoraş Dan Scutaru Cristofor I. Simionescu Nicolae Hurduc |
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Affiliation: | (1) Department of Natural and Synthetic Polymers, Faculty of Chemical Engineering, Technical University of Iaşi, Bd. Mangeron 71, 700050 Iaşi, Romania;(2) Institute of Applied Synthetic Chemistry 163 Division of Macromolecular Chemistry, Vienna University of Technology, Getreidemarkt 9, A-1060 Wien, Austria;(3) “P.Poni” Insitute of Macromolecular Chemistry of Iaşi, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania |
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Abstract: | This paper presents the syntheses, characterization and photochromic behavior of some new azo-polysiloxanes modified with uracil, cytosine or nitro-phenolic groups. Taking into consideration the possibility of generating H-bonds or donor/acceptor interactions, this class of materials present a potential applicability in the immobilization of biomolecules and their nano-manipulations. Also, such compounds are capable of producing a fluid phase, with directional flowing capacity. For all these polymers, the molecular modeling simulations have shown disordered structures, which would generate amorphous phases, a very important aspect for molecules’ nano-manipulation. The photochromic behavior in the presence of UV irradiation was also evaluated. |
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Keywords: | azobenzene functionalized polymers photochromic behavior |
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