Well-defined Block Copolymer by Click Coupling Reaction - Ibrahim, Saber
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Block copolymers have attracted great attention in polymer science due to the unique properties resulting from the covalently linked segments. Two different controlled polymerization techniques had to be used and two different strategies have been selected for the realization of the desired block copolymers: macroinitiator route and combination of preformed blocks by click cycloaddition reaction. For the later, first, NMRP had to be employed to synthesize polystyrene by an alkoxyamine initiator with terminal azide moiety. Polyoxazoline with alkyne terminal group was prepared through ring…mehr

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Produktbeschreibung
Block copolymers have attracted great attention in polymer science due to the unique properties resulting from the covalently linked segments. Two different controlled polymerization techniques had to be used and two different strategies have been selected for the realization of the desired block copolymers: macroinitiator route and combination of preformed blocks by click cycloaddition reaction. For the later, first, NMRP had to be employed to synthesize polystyrene by an alkoxyamine initiator with terminal azide moiety. Polyoxazoline with alkyne terminal group was prepared through ring opening polymerization. previous two block combined together through 1,3-dipolar cycloaddition (click coupling reaction) to form 1,2,3-triazole ring. Diblock copolymer system has been chosen which can stabilize the desired nanoparticles, gold or GaN, in a polymer cage either in a micelle core or in the micelle shell. Amphiphilic block copolymer should be suited for use as in-situ stabilizer to different types of nanoparticles, Au NPs and GaN QDs, through the active amine group in PEI segment forming interesting new nanohybrid materials with polystyrene matrix
Autorenporträt
Saber Ibrahim has PhD in polymer chemistry from TUD university, Germany 2011. He is Assistance professor in Polymer and packaging materials department, National research Centre, Cairo, Egypt. He works as co-investigator in international project between IPF, Germany and KACST in KSA to develop novel copolymers with controlled properties.