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Title: Composite particles of disinfectant nanocapsules-skim rubber latex
Authors: Chariya Kaewsaneha
Pakorn Opaprakasit
Duangporn Polpanich
Srung Smanmoo
Pramuan Tangboriboonrat
Mahidol University
Sirindhorn International Institute of Technology, Thammasat University
Thailand National Science and Technology Development Agency
Thailand National Center for Genetic Engineering and Biotechnology
Keywords: Chemical Engineering;Chemistry;Materials Science
Issue Date: 1-Nov-2010
Citation: International Journal of Polymer Analysis and Characterization. Vol.15, No.8 (2010), 524-535
Abstract: Skim latex, a by-product of natural rubber latex, was prevulcanized by sulfur and then used in the preparation of composite particles with disinfectant nanocapsules. Each polymeric nanocapsule contained chlorhexidine digluconate (CHD) as a disinfectant agent encapsulated with poly(methyl acrylate) (PMA) as a shell. The driving force for the heterocoagulation of CHD-PMA nanocapsule and sulfur-prevulcanized skim (SPVS) particle was the electrostatic interaction between the positive charge of lecithin residing on the surface of the nanocapsule and the negative charge from the indigenous surfactant (protein-lipid) and/or from sodium dodecyl sulfate on the surface of the SPVS latex particle. The zeta potential and morphology of heterocoagulated particles indicated the formation of the CHD-PM A/SPVS composite particles. Structures and formation mechanisms of the composite particles with different blend ratios were revealed by depth profiling confocal Raman spectra. © Taylor & Francis Group, LLC.
ISSN: 15635341
Appears in Collections:Scopus 2006-2010

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