Preparation and Characterization of Modified Polylactic Acid-co-Polyethylene Glycol-co-Polylactic Acid Microcapsules Enclosing Cypermethrin

Abstract:

Tri-block poly (lactide)-poly (ethylene glycol)-poly (lactide), diacrylated derivative and the cypermethrin-loaded microcapsule were prepared, respectively. The structure of the copolymer was characterized by ¹HNMR, FTIR, TGA and DSC. The microcapsules were characterized by OM(optical microscope), SEM, FTIR, TGA and DSC. The encapsulation efficiency of the microcapsules is 91.3%. The microcapsules showed good dispersity and sustained release behavior in 50% ethylene glycol aqueous solution.

• Periodical: Advanced Materials Research (Volume 1088)
• Pages: 449-454
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1088.449
• Online since: February 2015
• Authors: Yong Xu, Wei Tao Chen, Teng Fei Fan, Xue Min Wu, Hai Xiang Gao*
• Keywords: Cypermethrin, Microcapsules, Polyethylene Glycol, Polylactic Acid

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