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- W2393937203 abstract "Poly(urea-formaldehyde)(PUF) microcapsules loaded with chlorpyrifos were prepared by in situ polymerization using an industrial urea-formaldehyde adhesive.The main factors affecting the properties of the microcapsules were investigated, and the conditions for preparing the microcapsules were optimized.The results showed that the variety of the curing agent,the shell/core ratio and the reaction temperature all significantly affect the drug loading,the encapsulation efficiency and the release rate of the microcapsules,and that the reaction time and the speed of addition of the acid also have a slight effect on the properties of the microcapsules.The optimized reaction conditions were found to be: oxalic acid as curing agent;shell/core ratio of 0.94;reaction temperature of 40 °C. The microcapsules prepared under these conditions had a 67.7% drug loading,87.7% encapsulation efficiency and 88.2% yield.Microcapsules prepared in this way had comparable properties to those prepared under equivalent conditions by in situ polymerization of urea and formaldehyde." @default.
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- W2393937203 date "2009-01-01" @default.
- W2393937203 modified "2023-09-23" @default.
- W2393937203 title "Encapsulation of chlorpyrifos in microcapsules prepared using industrial urea-formaldehyde adhesive" @default.
- W2393937203 hasPublicationYear "2009" @default.
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