Preparation and investigation of poly(methylmethacrylate) nano-capsules containing haloxyfop-R-methyl and their release behavior

Mahmoudian M., Torbati S., AliMirzayi N., Nozad E., Kochameshki M., Shokri A.

Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, vol.55, no.4, pp.301-309, 2020 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.1080/03601234.2019.1692614
  • Journal Name: Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, Analytical Abstracts, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Compendex, EMBASE, Environment Index, Food Science & Technology Abstracts, Geobase, Greenfile, MEDLINE, Pollution Abstracts, Veterinary Science Database
  • Page Numbers: pp.301-309
  • Keywords: Encapsulation, environmental pollution, haloxyfop-R-methyl, herbicides, poly(methylmethacrylate), PHASE-CHANGE MATERIALS, MICROCAPSULES, HERBICIDES, SHELL


© 2019, © 2019 Taylor & Francis Group, LLC.In this study, the preparation and characterization of haloxyfop-R-methyl herbicide loaded in poly(methylmethacrylate) (PMMA) nano-capsules by emulsion polymerization and its release behavior were investigated. The chemical characterizations of PMMA/haloxyfop-R-methyl nano-capsules were confirmed by FT-IR spectroscopy method, and the surface morphology was studied by field emission scanning electron microscopy and transmission electron microscopy. Also, the herbicide loading and encapsulation efficiency were analyzed for the herbicide-loaded nano-capsules. The release rate of PMMA/haloxyfop-R-methyl nano-capsules was determined by UV-visible spectroscopy. The thermal properties and thermal stability of nano-capsules were explored by the thermal gravimetric analysis method. The diameter of the nano-capsules was in the range of 100–300 nm. Increasing the amount of herbicide in nano-formulations significantly affected the surface of the nano-capsules and reduced their surface smoothness. Triton-X100 was identified as the best surfactant for the preparation of nano-capsules, and the sample containing the lowest herbicide content showed the best performance in terms of encapsulation and loading efficiency. This sample showed a steady-state release rate during the six days.