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Lookup NU author(s): Professor Galip Akay
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Highly concentrated colloidal latex particles from thermoplastics (low-density polyethylene) can be obtained by using phase-inversion emulsification of a polymer melt in which hydrophobically modified water-soluble polymers are used to provide surface activity. Initially, a water-in-polymer-melt emulsion is obtained and subsequently inverted to a polymer-melt-in-water emulsion when a critical aqueous phase volume is reached. After the phase inversion and subsequent dilution of the emulsion, if the solidification of the melt is carried out during mixing, another phase inversion takes place and water-in-solid-polymer aggregates are formed even if the phase volume of the aqueous phase is well above the critical value. These aggregates contain an aqueous phase encapsulated by the polymer. The kinetics of this phase inversion is studied and the use of the technique to obtain microcapsules from aqueous solutions is investigated.
Author(s): Akay G; Tong L; Hounslow MJ; Burbidge AS
Publication type: Article
Publication status: Published
Journal: Colloid and Polymer Science
Year: 2001
Volume: 279
Issue: 11
Pages: 1118-1125
ISSN (print): 0303-402X
ISSN (electronic): 1435-1536
Publisher: Springer
URL: http://dx.doi.org/10.1007/s003960100547
DOI: 10.1007/s003960100547
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