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|Title:||Composite particles of disinfectant nanocapsules-skim rubber latex|
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|
|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.|
|Appears in Collections:||Scopus 2006-2010|
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