Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	PDEGMA‐b‐PDIPAEMA copolymers via RAFT polymerization and their pH and thermoresponsive schizophrenic self‐assembly in aqueous media
Δημιουργός/Συγγραφέας:	Selianitis, Dimitrios [EL] Πίσπας, Στέργιος[EN] Pispas, Stergios
Εκδότης:	Wiley
Ημερομηνία:	2020
Γλώσσα:	Αγγλικά
ISSN:	2642-4150 2642-4169
DOI:	10.1002/pol.20200266
Περίληψη:	We report on a new doubly responsive polymeric system of amphiphilic diblock copolymers, namely poly(di-[ethylene glycol] methyl ether methacrylate)-b-poly(2-[diisopropylamino] ethyl methacrylate), PDEGMA-b-PDIPAEMA, obtained by the reversible addition-fragmentation chain transfer (RAFT) polymerization technique. Molecular characterization by size exclusion chromatography (SEC), nuclearmagnetic resonance (1H-NMR) and infrared spectroscopy (FT-IR) confirms the successful synthesis of these novel block copolymers. The PDEGMA-b-PDIPAEMA block copolymers formed aggregates in aqueous media in response to solution pH and temperature changes, as evidenced by dynamic and static light scattering techniques, as well as fluorescence spectroscopy. Aggregates with PDEGMA core and PDIPAEMA corona domains are formed at elevated temperatures and low pH, whereas aggregates with PDIPAEMA cores and PDEGMA coronas are formed at neutral and high pH. Overall structural characteristics and solution behavior of the copolymers are affected by the copolymer composition. The obtained results provide valuable new information on the behavior and design guidelines for the construction of stimuli responsive, “schizophrenic” polymeric nanostructures with potential application in the biomedical field.
Τίτλος πηγής δημοσίευσης:	Journal of Polymer Science
Τόμος/Κεφάλαιο:	58
Τεύχος:	13
Σελίδες:	1867-1880
Θεματική Κατηγορία:	[EL] Φασματοσκοπία[EN] Spectroscopy [EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Χημική τεχνολογία[EN] Chemical technolgy
Λέξεις-Κλειδιά:	Aggregation Double responsive copolymer Light scattering pH responsive RAFT Thermoresponsive
Κάτοχος πνευματικών δικαιωμάτων:	Copyright © 2020 Wiley Periodicals, LLC.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://onlinelibrary.wiley.com/doi/10.1002/pol.20200266
Ηλεκτρονική διεύθυνση περιοδικού (link) :	https://onlinelibrary.wiley.com/journal/26424169
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο