In the present paper, the crosslinking agents used are APTMS, GPTMS, and MPTMS, respectively.
Schematic of the PDMS crosslinking reaction (R represents APTMS, GPTMS, and MPTMS terminal functional groups, respectively).
3] Nonstandard abbreviations: TRF, time-resolved fluorometry; SA, streptavidin; TrIFA, time-resolved immunofluorometric immunoassay; HBsAg, hepatitis B surface antigen; HBeAg, hepatitis B e antigen; APTMS
, (3-aminopropyl)trimetho)cylsilane; BHHCT, 4,4-bis(1,1,2,2,3,3-heptafluoro-4,6hexanedion-6-yl)chlorosLdfo-o-terphenyl; BPTA, N,N,[N.
5, spectrum c) than for the particles coated with MTMS or APTMS
, which was attributed to the thicker coating layer of the GPTMS-coated nanoparticles.
The surface modification of nanoparticles with APTMS involved the conjugation of two mechanisms, namely hydrolysis of metal alkoxides (step 1, Fig.
It has been found from the results of TGA and FTIR analyses that APTMS grafted on the surface of [Fe.
This indicates that surface functionalization of the nanoparticles with APTMS led to the decrease of releasing [Fe.
3] particles by APTMS resulted in the decrease of its corrosion inhibition action.
This observation reveals that surface functionalization of the nanoparticles with APTMS increased the interaction between the nanoparticles and polymeric coating matrix.
Therefore, surface modification of the nanoparticles with APTMS caused good dispersion of the nanoparticles in the polyurethane coating that can be reason for the decrease of electrolyte diffusion into the coating and the increase of barrier properties of resulting nanocoatings.