Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Poly(hydroxyl propyl methacrylate)-b-Poly(oligo ethylene glycol methacrylate) Thermoresponsive Block Copolymers by RAFT Polymerization
Δημιουργός/Συγγραφέας:	Karatza A. [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios
Εκδότης:	Wiley-VCH Verlag
Ημερομηνία:	2018
Γλώσσα:	Αγγλικά
ISSN:	1022-1352
DOI:	10.1002/macp.201800060
Περίληψη:	Thermoresponsive amphiphilic poly(hydroxyl propyl methacrylate)-b-poly(oligo ethylene glycol methacrylate) block copolymers (PHPMA-b-POEGMA) are synthesized by RAFT polymerization, with different compositions and molecular weights. The copolymers are molecularly characterized by size-exclusion chromophotography, and 1H NMR spectroscopy. Dynamic light scattering (DLS) and static light scattering (SLS) experiments in aqueous solutions show that the copolymers respond to temperature variations via formation of self-organized nanoscale aggregates. Aggregate structural characteristics depend on copolymer composition, molecular weight, and ionic strength of the solution. Fluorescence spectroscopy experiments confirm the presence of less hydrophilic domains within the aggregates at higher temperatures. The thermoresponsive behavior of the PHPMA-b-POEGMA block copolymers is attributed to the particular solubility characteristics of the hydrophilic, water insoluble PHPMA block that are modulated by the presence of the water soluble POEGMA block.
Τίτλος πηγής δημοσίευσης:	Macromolecular Chemistry and Physics
Τόμος/Κεφάλαιο:	219
Τεύχος:	12
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Φασματοσκοπία[EN] Spectroscopy
Λέξεις-Κλειδιά:	amphiphilic block copolymers RAFT polymerization self-assembly thermoresponsive
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο