Phase Behavior of Nonionic Microemulsions with Multi-end-capped Polymers and Its Relation to the Mesoscopic Structure

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...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 31(2015), 18 vom: 12. Mai, Seite 5198-209
1. Verfasser: de Molina, Paula Malo (VerfasserIn)
Weitere Verfasser: Ihlefeldt, Franziska Stefanie, Prévost, Sylvain, Herfurth, Christoph, Appavou, Marie-Sousai, Laschewsky, André, Gradzielski, Michael
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
LEADER 01000naa a22002652 4500
001 NLM24810795X
003 DE-627
005 20231224150703.0
007 cr uuu---uuuuu
008 231224s2015 xx |||||o 00| ||eng c
024 7 |a 10.1021/acs.langmuir.5b00817  |2 doi 
028 5 2 |a pubmed24n0827.xml 
035 |a (DE-627)NLM24810795X 
035 |a (NLM)25879684 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a de Molina, Paula Malo  |e verfasserin  |4 aut 
245 1 0 |a Phase Behavior of Nonionic Microemulsions with Multi-end-capped Polymers and Its Relation to the Mesoscopic Structure 
264 1 |c 2015 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 08.07.2015 
500 |a Date Revised 12.05.2015 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
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/R(ee), 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 
650 4 |a Journal Article 
700 1 |a Ihlefeldt, Franziska Stefanie  |e verfasserin  |4 aut 
700 1 |a Prévost, Sylvain  |e verfasserin  |4 aut 
700 1 |a Herfurth, Christoph  |e verfasserin  |4 aut 
700 1 |a Appavou, Marie-Sousai  |e verfasserin  |4 aut 
700 1 |a Laschewsky, André  |e verfasserin  |4 aut 
700 1 |a Gradzielski, Michael  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Langmuir : the ACS journal of surfaces and colloids  |d 1992  |g 31(2015), 18 vom: 12. Mai, Seite 5198-209  |w (DE-627)NLM098181009  |x 1520-5827  |7 nnns 
773 1 8 |g volume:31  |g year:2015  |g number:18  |g day:12  |g month:05  |g pages:5198-209 
856 4 0 |u http://dx.doi.org/10.1021/acs.langmuir.5b00817  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_22 
912 |a GBV_ILN_350 
912 |a GBV_ILN_721 
951 |a AR 
952 |d 31  |j 2015  |e 18  |b 12  |c 05  |h 5198-209