Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Effect of Sonication on Polymeric Aggregates Formed by Poly(ethylene oxide)-Based Amphiphilic Block Copolymers
Δημιουργός/Συγγραφέας:	Zhao, Junpeng [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios Zhang, Guangzhao
Εκδότης:	Wiley - V C H Verlag GmbH & Co. KGaA
Τόπος έκδοσης:	WEINHEIM
Ημερομηνία:	2009-06-17
Γλώσσα:	Αγγλικά
ISSN:	1022-1352
DOI:	10.1002/macp.200900161
Περίληψη:	The effect of sonication on the size and structure of polymeric aggregates formed by amphiphilic block copolymers was studied by the combination of dynamic and static light scattering. Poly(ethylene oxide)-block-polyisoprene, poly(ethylene oxide)-block-polystyrene diblock copolymers, and poly(ethylene oxide)-block-polyisoprene-block-poly(ethylene oxide) triblock copolymer were used as typical polymeric amphiphiles. Sonication was found to be an effective method to break up inter-micellar associations and split large polymeric aggregates, present initially in the aqueous solutions, into monodisperse micelles. The content and type of hydrophobic block, copolymer solution-preparation protocol, and copolymer concentration were also investigated as co-factors in conjunction to the effect of sonication time.
Τίτλος πηγής δημοσίευσης:	Macromolecular Chemistry and Physics
Τόμος/Κεφάλαιο:	210
Τεύχος:	12
Σελίδες:	1026-1032
Λέξεις-Κλειδιά:	amphiphiles block copolymers fragmentation of aggregates light scattering sonication Polymer Science
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© WILEY-V C H VERLAG GMBH
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο