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Article: Colloid surfactants for emulsion stabilization

TitleColloid surfactants for emulsion stabilization
Authors
Issue Date2008
Citation
Advanced Materials, 2008, v. 20 n. 17, p. 3239-3243 How to Cite?
AbstractA robust and straight-forward approach to synthesize uniform amphiphilic dimer colloid surfactants, consisting of a hydrophilic bulb and a hydrophobic bulb, was introduced. The formation of nonspherical dimer particles is found to be enhanced by the incompatibility-driven phase separation between the two polymer networks. It is found that the control over the particle geometry and the size ratio of the two bulbs can be achieved by changing the volume ratio of the monomer solution to the crosslinked polystyrene (CPS) seed. The propensity for the particles to orient with specific directionality is essential to form dense assemblies of particles at the interface, and to achieve stronger adsorption to interfaces. The formation of nonspherical drops of emulsion is found to be due to the fusion of two or more partially covered droplets until the interface is filled with the amphiphilic dimer particles.
Persistent Identifierhttp://hdl.handle.net/10722/131752
ISSN
2015 Impact Factor: 18.96
2015 SCImago Journal Rankings: 9.021
ISI Accession Number ID
Funding AgencyGrant Number
Korea Research Foundation (KRF)
Amore-Pacific Co. R&D Center in Korea
NSFDMR-0602684
Harvard MRSECDMR-0213805
Funding Information:

This work was supported by the Post-doctoral Fellowship Program of Korea Research Foundation (KRF) and Amore-Pacific Co. R&D Center in Korea and by the NSF (DMR-0602684) and the Harvard MRSEC (DMR-0213805). Supporting Information is available online from Wiley InterScience or from the authors.

References

 

DC FieldValueLanguage
dc.contributor.authorKim, JWen_HK
dc.contributor.authorLee, Den_HK
dc.contributor.authorShum, HCen_HK
dc.contributor.authorWeitz, DAen_HK
dc.date.accessioned2011-02-02T02:07:34Z-
dc.date.available2011-02-02T02:07:34Z-
dc.date.issued2008en_HK
dc.identifier.citationAdvanced Materials, 2008, v. 20 n. 17, p. 3239-3243en_HK
dc.identifier.issn0935-9648en_HK
dc.identifier.urihttp://hdl.handle.net/10722/131752-
dc.description.abstractA robust and straight-forward approach to synthesize uniform amphiphilic dimer colloid surfactants, consisting of a hydrophilic bulb and a hydrophobic bulb, was introduced. The formation of nonspherical dimer particles is found to be enhanced by the incompatibility-driven phase separation between the two polymer networks. It is found that the control over the particle geometry and the size ratio of the two bulbs can be achieved by changing the volume ratio of the monomer solution to the crosslinked polystyrene (CPS) seed. The propensity for the particles to orient with specific directionality is essential to form dense assemblies of particles at the interface, and to achieve stronger adsorption to interfaces. The formation of nonspherical drops of emulsion is found to be due to the fusion of two or more partially covered droplets until the interface is filled with the amphiphilic dimer particles.en_HK
dc.relation.ispartofAdvanced Materialsen_HK
dc.titleColloid surfactants for emulsion stabilizationen_HK
dc.typeArticleen_HK
dc.identifier.emailShum, HC:ashum@hku.hken_HK
dc.identifier.authorityShum, HC=rp01439en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adma.200800484en_HK
dc.identifier.scopuseid_2-s2.0-54949104617en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-54949104617&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue17en_HK
dc.identifier.spage3239en_HK
dc.identifier.epage3243en_HK
dc.identifier.isiWOS:000259205400008-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridKim, JW=36012700600en_HK
dc.identifier.scopusauthoridLee, D=8882507400en_HK
dc.identifier.scopusauthoridShum, HC=23976513800en_HK
dc.identifier.scopusauthoridWeitz, DA=7006798731en_HK

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