Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/10442/12577
| Εξειδίκευση τύπου : | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | Self-assembly in solutions of block and random copolymers during metal nanoparticle formation |
| Δημιουργός/Συγγραφέας: | Meristoudi, A.
[EL] Πίσπας, Στέργιος[EN] Pispas, Stergios
[EL] Βάϊνος, Νικόλαος A.[EN] Vainos, Nikolaos A. |
| Εκδότης: | John Wiley & Sons Incorporated |
| Τόπος έκδοσης: | Hoboken |
| Ημερομηνία: | 2008-07-15 |
| Γλώσσα: | Αγγλικά |
| ISSN: | 0887-6266 |
| DOI: | 10.1002/polb.21487 |
| Περίληψη: | The self-assembly behavior of poly(isoprene-b-acrylic acid) and poly(styrene-b-2-vinylpyridine) amphiphilic block copolymers, as well as a poly(styrene-r-2-vinylpyridine) amphiphilic random copolymer was investigated in slightly selective organic solvents (tetrahydrofuran and toluene) in the presence of Ag and Au ions and subsequently Ag, Au metal nanoparticles, by means of dynamic light scattering. In the range of concentrations studied the copolymers exist in the form of micelles with cores composed of acrylic acid and 2-vinylpyridine segments in equilibrium with unimers. The addition of metal ions and their subsequent transformation to metal nanoparticles shifts the equilibrium in favor of the micelles. The concentration of the inorganic components has also a considerable effect on the size of the polymeric aggregates. A similar behavior is observed for the random copolymer. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), UV visible spectroscopy, and transmission electron microscopy (TEM) give valuable additional information on the nature of the interactions between the polymeric and inorganic components, as well as on the characteristics of the metal nanoparticles and the hybrid micelles formed in each case. The presented results have a direct relation to the synthesis of metal nanoparticles under confinement by utilization of copolymer nanoreactors and appropriate solution conditions. |
| Τίτλος πηγής δημοσίευσης: | Journal of Polymer Science Part B-polymer Physics |
| Τόμος/Κεφάλαιο: | 46 |
| Τεύχος: | 14 |
| Σελίδες: | 1515-1524 |
| Λέξεις-Κλειδιά: | amphiphilic block copolymers
colloids
light scattering
metal nanoparticles
self-assembly
Polymer Science |
| Αξιολόγηση από ομότιμους (peer reviewed): | Ναι |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2008 Wiley Periodicals, Inc. |
| Εμφανίζεται στις συλλογές: | Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο
|
