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Identifier

000367755

Title

Αντιστρέψιμες μικροδομές πολυμερικών συστημάτων για φωτονικές εφαρμογές

Alternative Title

Reversible polymeric microstructures for photonic applications

Author

Μαντζαρίδης, Χρήστος

Thesis advisor

Φυτάς, Γεώργιος

Abstract

The present thesis is about the development of polymeric structures that are active in light induced phenomenon and which may be used for photonic applications. The thesis has its origins in a novel phenomenon in which polymer solutions, like polyisoprene, exhibited material organization induced by continuous-wave visible laser light at low power levels, as it is reported in the literature (R. Sigel, G. Fytas, N. Vainos, S. Pispas, N. Hadjichristidis “Pattern Formation in Homogeneous Polymer Solutions Induced by a Continuous-Wave Visible Laser”, Science 2002, 297, 67). The present thesis has two distinctive parts. In the first part a series of model polymers was developed in order to explore the aforementioned phenomenon. In the laboratory a wide variety of polyisoprene homopolymers were prepared with different microstructures and varying molecular weight. Moreover a series of diblock copolymers (PI-b-PS, PI-b-P2VP) were prepared. In the second part of the thesis the aforementioned polymers were utilized towards the development of polymeric nanostructures which are active to the described phenomenon. The polymers were used as polymer matrices for the development of gold nanoparticles and hybrid colloids. Additionally for the preparation of block polyampholytes which exhibit pH sensitivity. Finally for the preparation of reverse charged micelles in aqueous media and the subsequent complexation with the anionic porhyrin TPPS.

Language

Greek

Subject

Anionic polymerization

Diblock copolymers

Nanoparticles

Polyampholytes

Ανιοντικός πολυμερισμός

Νανοσωματίδια

Πολυαμφολύτες

Συμπολυμερή κατά συστάδες

Issue date