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| Hauptseite > Publikationsdatenbank > Phase Behavior of Nonionic Microemulsions with Multi-end-capped Polymers and Its Relation to the Mesoscopic Structure > print |
| Hauptseite > Publikationsdatenbank > Phase Behavior of Nonionic Microemulsions with Multi-end-capped Polymers and Its Relation to the Mesoscopic Structure > print |
| 001 | 278935 | ||
| 005 | 20240619091154.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.langmuir.5b00817 |2 doi |
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| 100 | 1 | _ | |a Malo de Molina, Paula |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Phase Behavior of Nonionic Microemulsions with Multi-end-capped Polymers and Its Relation to the Mesoscopic Structure |
| 260 | _ | _ | |a Washington, DC |c 2015 |b ACS Publ. |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1454333655_19484 |2 PUB:(DE-HGF) |
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| 500 | _ | _ | |a "final draft post referee" kann nicht beigebracht werden |
| 520 | _ | _ | |a The polymer architecture of telechelic or associative polymers has a large impact on the bridging of self-assembled structures. This work presents the phase behavior, small angle neutron scattering (SANS), dynamic light scattering (DLS), and fluorescence correlation spectroscopy (FCS) of a nonionic oil-in-water (O/W) microemulsion with hydrophobically end-capped multiarm polymers with functionalities f = 2, 3, and 4. For high polymer concentrations and large average interdroplet distance relative to the end-to-end distance of the polymer, d/Ree, the system phase separates into a dense, highly connected droplet network phase, in equilibrium with a dilute phase. The extent of the two-phase region is larger for polymers with similar length but higher f. The interaction potential between the droplets in the presence of polymer has both a repulsive and an attractive contribution as a result of the counterbalancing effects of the exclusion by polymer chains and bridging between droplets. This study experimentally demonstrates that higher polymer functionalities induce a stronger attractive force between droplets, which is responsible for a more extended phase separation region, and correlate with lower collective droplet diffusivities and higher amplitude of the second relaxation time in DLS. The viscosity and the droplet self-diffusion obtained from FCS, however, are dominated by the end-capped chain concentration. |
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| 700 | 1 | _ | |a Prévost, Sylvain |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Herfurth, Christoph |0 P:(DE-HGF)0 |b 3 |
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| 700 | 1 | _ | |a Laschewsky, André |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Gradzielski, Michael |0 P:(DE-HGF)0 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.langmuir.5b00817 |g Vol. 31, no. 18, p. 5198 - 5209 |0 PERI:(DE-600)2005937-1 |n 18 |p 5198 - 5209 |t Langmuir |v 31 |y 2015 |x 1520-5827 |
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