Porous epoxy phenolic novolac resin polymer microcapsules: Tunable release and bioactivity controlled by epoxy value

Tunable thermal, mechanical, and controlled-release properties of epoxy phenolic novolac resin microcapsules mediated by diamine crosslinkers

“…Previously, we have successfully fabricated EPN-MCs loaded pendimethalin, and demonstrated that such MCs could achieve tunable release behavior and herbicidal activity by adjusting the epoxy value, which indicated the potential application of EPN-MCs in agriculture. 22 Such polymeric MCs were suitable to encapsulate the hydrophobic cargoes, and thus have broad utility in agriculture and medicine, etc.…”

“…[17][18][19] Up to now, there were few literatures relevant to the fabrication of microcapsules/microspheres using epoxy resins as shells. [20][21][22] Recently, we synthesized MCs with porous surface using epoxy resin and demonstrated that epoxy resin based MCs prepared with a high epoxy value tended to yield a higher crosslinking degree, less porosity and a better thermal stability. 22 Epoxy resins are reactive monomers and can chemically react with numerous crosslinkers (including imidazoles, diamines, carboxylic acids and polyamides) to form polymeric epoxy systems with a wide range of physicochemical properties, such as excellent chemical resistance and superb mechanical properties.…”

“…[20][21][22] Recently, we synthesized MCs with porous surface using epoxy resin and demonstrated that epoxy resin based MCs prepared with a high epoxy value tended to yield a higher crosslinking degree, less porosity and a better thermal stability. 22 Epoxy resins are reactive monomers and can chemically react with numerous crosslinkers (including imidazoles, diamines, carboxylic acids and polyamides) to form polymeric epoxy systems with a wide range of physicochemical properties, such as excellent chemical resistance and superb mechanical properties. 16,[23][24][25] Among these crosslinker families, diamines are the most widely used agents owing to their wide availability, low cost and fast reaction.…”

Lignin-Modified Electronegative Epoxy Resin Nanocarriers Effectively Deliver Pesticides against Plant Root-Knot Nematodes (Meloidogyne incognita)

“…In this study, abamectin nanocapsules (Aba-NCs) with lignin-modified epoxy resin (ER) as a nanocarrier were prepared by inversed-phase interfacial polymerization, which is considered to be the most suitable method for industrialization. ERs are exceedingly appropriate as a carrier for a pesticide delivery system because of their superior mechanical and thermal properties and low cost. − Three pesticide formulations were created for comparison: a microemulsion (ME) composed of oil-in-water droplets of less than 100 nm; a suspension concentrate (SC) composed of solid particles of approximately 1 μm; and a microcapsule (MC) that encapsulated Aba into a micron-diameter ER carrier. Thereinto, the MC was registered in the Ministry of Agriculture of the People’s Republic of China for the control of root-knot nematodes, and it can reflect the advantages of particle size reduction.…”

Easily Tunable Membrane Thickness of Microcapsules by Using a Coordination Assembly on the Liquid-Liquid Interface

“…Moreover, the residual and other unforeseeable risks of core materials in the environment also increase due to the slow release of core materials after the encapsulation (Li et al, 2014 ). Release profiles of MCs in conventional systems have often been regulated by the membrane thickness, particle size, pore size, membrane permeability or stimuli-gated channels (Siepmann and Siepmann, 2012 ; Jeong et al, 2014 ; Zhang et al, 2014 , 2018b ; Shi et al, 2016 ; Cui et al, 2017 ; Huang et al, 2017 ). The fabrication of wrinkled MCs is another important strategy for increasing the surface area of the membrane, but little progress was observed in terms of the release rate (Ina et al, 2016 ).…”