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Mechanochemical Encapsulation of an Aromatic Hydrocarbon into Mesoporous Silica as a Simple Slow Release Formulation
Author(s) -
Reanthonglert Wichayut,
Yazawa Risa,
Imwiset Kamonnart,
Bureekaew Sareeya,
Ogawa Makoto
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701274
Subject(s) - mesoporous material , mesoporous silica , dichlorobenzene , porosity , chemical engineering , materials science , mesoporous organosilica , solvent , chemistry , organic chemistry , composite material , catalysis , engineering
The incorporation of para ‐dichlorobenzene into mesoporous silica (with the pore diameter of 1.9 ‐ 3.1 nm) was conducted by a mechanochemical reaction, where mesoporous silica powder and para ‐dichlorobenzene powder were mixed together using a mortar and a pestle at room temperature. The resulting host‐guest complexes exhibited useful controlled release of para ‐dichlorobenzene into air as evaluated by the change in the sample weight. The release speed was affected by the pore size of the used mesoporous silicas; the release of para ‐dichlorobenzene was suppressed when the mesoporous silica with the pore size of 3.1 nm was used. The present method for the slow release formulation has such advantages as the materials variation (porous silicas with different pore size and possible pore surface modification) and simple solvent free operation for the sample preparation (mechanochemical encapsulation into the pore).