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Hybrid Materials from Giant Compound Block Copolymer Micelles Encapsulating Gold Nanoparticles Chris Mantzaridis 1 , Stergios Pispas 1 1 Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vass. Constantinou Ave., 11635 Athens, Greece *xmantzar@eie.gr In the past few years a growing attention has been given to nanostructured materials. The key factor which evoked this attention was the fact that in the nano scale (1-100 nm) new properties can be present. These properties exhibit an strong dependency on the size of a certain structural unit.The main phenomena that evolve in the case of semiconductor/metal nanoparticles is the plasmon resonance absorption band. The search for new materials involving semiconductor/metal nanoparticles and polymers still continues. Such hybrid materials combine the optical properties of the inorganic component and the mechanical properties of the polymeric component and can be found in a variety of nanostructures that are introduced due to the nanophase separation in block copolymer systems. In the first part of the current work the micelles of a diblock copolymer poly(styrene-b-2-vinyl pyridine) (PS- P2VP) were used as a nanoreactor for the creation of gold nanoparticles. In the second step the micelles containing gold nanoparticles were encapsulated inside the core of the micelles of another diblock copolymer poly(styrene-b-isoprene) which was diluted in n-heptane. In this solvent the copolymer creates micelles with a core of polystyrene and a corona of polyisoprene. The fact that the core of the micelles is polystrene allowed us to insert the compound material inside the core, due to the affinity with the corona of the first micelles that is polystyrene also. In sheme 1 the overall experimental procedure is depicted. The creation of such novel nanostructures was stidied in solution and in balk state by static and dynamic light scattering, UV visible spectroscopy and electron microscopy. The results of the methods showed the succesful synthesis of the designed materials. 175
PS HAuCl 4 P2VP Ion loading PSP2VP micelles in toluene PSP2VP micelles loaded with Au ions PS PI NH 2 4 Reduction C o disso lu tio n in tolue ne PSP2VP micelles loaded with Au nanoparticles Solvent evaporation Redissolution in heptane Giant hybrid compound block copolymer micelles in heptane Sheme 1: Schematic showing the procedure for the creation of large compound block copolymer micelles encapsulating gold nanoparticles. 176
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XXIII ΠΑΝΕΛΛΗΝΙΟ ΣΥΝΕ
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Κοιτώντας τα πρακτ
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ΕΠΙΤΡΟΠΕΣ Οργανωτι
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ΠΡΟΓΡΑΜΜΑ ΣΥΝΕΔΡΙΟ
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21. Οργανικά τρανζίσ
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15:30 15:45 16:00 16:15 16:30 16:45
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41. Modeling and quantitative phase
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Ανοιχτή Συνεδρία «
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«NανοΥλικά και Νανο
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New materials and MOS device concep
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Reliability Characteristics of Rare
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Ο λόγος των ταχυτήτ
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Thus the mean R In-In is expected t
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FIG 1. Schematic representation of
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με 0.80 eV στη διεπιφά
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Εντοπισµός Φορέων
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Παρασκευή και Xαρακ
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Electrical Spin Injection from Fe i
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Electrical Spin Injection of Spin-P
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References [1] CH Lee, J. Meteer, V
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Σχήμα 1: Φωτογραφία
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SEM Image Layout Simulation Εικ
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Μελέτη Ατελειών Σε
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Facet-Stress-Driven Ordering in SiG
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νανοκρυσταλλίτης (a
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Σχήµα 1. Εικόνες περ
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Σχήµα 1. Εικόνες περ
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Οι δομές που αναπτύ
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Raman Intensity (10 -50 cm 3 ) 1,2
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Μελέτη της Επίδρασ
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Annealing Induced Dissociation of N
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`Εναπόθεση με Παλμι
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Μελέτη της Χημείας
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Ανάπτυξη Νέων Μεσο
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Application of Thermal Quadrupoles
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Στοχαστική προσομο
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Νανοτραχύτητα κατά
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Ευαισθησία και Δια
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Optical Properties of CuIn 1-x Ga x
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ανοπτημένο με λέιζ
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Στο σχήμα 3 φαίνοντ
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Id (mA) -0,3 -0,2 -0,1 Vg=0 Vg=-1 V
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Strained-Si Si 1-x Ge x graded Si 1
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Fig. 1. Laser mask movement during
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forwarded to the back interface dur
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Σχήμα 2: Εκθετική εξ
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V th (V) G m,max /G m,max0 (%) I d
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C/ C ox 1,0 0,8 0,6 0,4 0,2 0,0 -4
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και Ta 2 O 5 , των οποίω
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κατασκευή της. Η πα
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ΔP (mW) 12 10 8 6 4 2 0 0 500 1000
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υπολογίσουμε θεωρη
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Σχήμα 2 Σύστημα ηλε
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Μελέτη των Μηχανισ
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Ανάπτυξη και Μελέτ
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Structure and Magnetic Properties o
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Δομή και Μαγνητικέ
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Μετρήσεις Ειδικής
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Further, almost all of the observed
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g-factor 2.019 2.016 2.013 2.010 2.
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ρυθμό 4 C.min -1 , έπειτ
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ΜΕΛΕΤΗ ΤΟΥ ΦΑΙΝΟΜΕ
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Νέοι Εξαφερίτες Ba µ
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Crystal Structure of a new Supramol
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Magnetic Phase Transition in Synthe
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Συσχέτιση πλαστική
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Μετασχηματισμοί φά
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Μελέτη της Επίδρασ
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Resonant Spin Transfer Torque in Do
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3 η Προφορική Συνεδ
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technology, and e-beam lithography.
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ecause it reduces the calculation o
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Υπολογισμός Υψηλής
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Page 153 and 154: Combining Magnetism and Ferroelectr
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Page 167 and 168: P P P P P power P copolymers P and
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Page 173 and 174: Διηλεκτρική απόκρι
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Page 179 and 180: AP-PH (a.u.) 0.4 0.3 0.2 0.1 0.0 0
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Page 183 and 184: Conformational Properties of Dendri
Page 185 and 186: Structure and Dynamics of Branched
Page 187 and 188: ∆οµή και ∆υναµική
Page 189 and 190: Επίδραση της Τοπολ
Page 191 and 192: (α) (β) Σχήμα 2: (α) Απε
Page 193 and 194: Figure 3. Generation 4 PAMAM-H 2 O
Page 195 and 196: Από όλα τα παραπάνω
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Page 201 and 202: The nonlinear optical response of A
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Page 205 and 206: Bioactive Glass/Nanodiamonds system
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Page 209 and 210: Σύνθεση και Χαρακτ
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Page 213 and 214: Nανοσυνθέτα Εποξει
Page 215 and 216: [1] S. Iijima, Nature 354, 56 (1991
Page 217 and 218: Figure 3: GCMC calculations for und
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Page 223 and 224: στο συντελεστή διέ
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Page 227 and 228: Συναπόθεση Cr - Ni σε
Page 229 and 230: Investigation of the Structural, Mo
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Page 233 and 234: Templated Sol-Gel Synthesis Of TiO
Page 235 and 236: Παρασκευή Υμενίων
Page 237 and 238: Preparation of YSZ Solid Electrolyt
Page 239 and 240: Σύνθεση, Ανισοτροπ
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Μηχανικές Iδιότητε
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The Influence of Thermal Aging on t
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Modeling and quantitative phase ana
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Συμβολή στη Συντήρ
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Κρυσταλλική Συµπερ
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Σύνθεση Στερεών ∆ι
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Fabrication and Characterization of
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∆ιερεύνηση δυνατό
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Συγκριτική αξιολόγ
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6 η Προφορική Συνεδ
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Ηλεκτρομαγνητική Α
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Φασματοσκοπική Μελ
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Thermal and Electrical Properties o
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Structure, Mechanical, and Optoelec
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Designing Nanoporous Materials for
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This program was developed to serve
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Νέα Αυτό-οργανούμε
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A Physical Model to Interpret the E
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FIR study of Ag x (As 33 S 33 Se 33
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Mελέτη Μεικτών Γυαλ
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The Structural Role of Fe and Zn in
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ΕΥΡΕΤΗΡΙΟ ΣΥΓΓΡΑΦΕ
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Κομπίτσας Μ…………
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ΕΥΡΕΤΗΡΙΟ ΣΥΓΓΡΑΦΕ
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W Watson I.M………………4 Weg
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