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| Hauptseite > Publikationsdatenbank > Aggregation Behavior of Nonsymmetrically End-Capped Thermoresponsive Block Copolymers in Aqueous Solutions: Between Polymer Coils and Micellar States > print |
| Hauptseite > Publikationsdatenbank > Aggregation Behavior of Nonsymmetrically End-Capped Thermoresponsive Block Copolymers in Aqueous Solutions: Between Polymer Coils and Micellar States > print |
| 001 | 909071 | ||
| 005 | 20230123110638.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.macromol.2c00878 |2 doi |
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| 037 | _ | _ | |a FZJ-2022-02989 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Prause, Albert |0 0000-0001-9267-1220 |b 0 |
| 245 | _ | _ | |a Aggregation Behavior of Nonsymmetrically End-Capped Thermoresponsive Block Copolymers in Aqueous Solutions: Between Polymer Coils and Micellar States |
| 260 | _ | _ | |a Washington, DC |c 2022 |b Soc. |
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| 520 | _ | _ | |a The thermosensitive aggregation behavior in an aqueous solution of a library of amphiphilic BAB* copolymers is studied, where “A” represents a long permanently hydrophilic poly(N,N-dimethylacrylamide) (pDMAm) block, “B” represents a permanently hydrophobic end with an n-dodecyl chain, and “B*” represents a thermoresponsive (TR) block featuring a lower critical solution temperature (LCST). Four polyacrylamides are employed for B*, namely, poly(N-n-propylacrylamide) (pNPAm), poly(N-isopropylacrylamide) (pNiPAm), poly(N,N-diethylacrylamide) (pDEAm), and poly(N-acryloylpyrrolidine) (pNAP), which differ with respect to the hydrophilicity of their amide side chains and LCST behavior. While blocks A and B were kept constant, the lengths of the TR blocks were varied systematically. These amphiphilic copolymers were studied as a function of concentration and temperature via light and neutron scattering (static light scattering (SLS), dynamic light scattering (DLS), small-angle neutron scattering (SANS)). For sufficiently long pNiPAM and pDEAm blocks (DPn > 40), a pronounced hydrophobic effect at temperatures above the LCST transition results in well-structured, ordered aggregates. Thus, the aggregation can be controlled by the choice and length of the TR block, thereby elucidating a so far hardly explored class of temperature-sensitive polymeric amphiphiles. |
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| 700 | 1 | _ | |a Laschewsky, André |0 0000-0003-2443-886X |b 6 |e Corresponding author |
| 700 | 1 | _ | |a Gradzielski, Michael |0 0000-0002-7262-7115 |b 7 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.macromol.2c00878 |g Vol. 55, no. 13, p. 5849 - 5863 |0 PERI:(DE-600)1491942-4 |n 13 |p 5849 - 5863 |t Macromolecules |v 55 |y 2022 |x 0024-9297 |
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