Organic–Inorganic Hybrid Films Based on Hydroxylated Soybean Oils |
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Authors: | Márcia Campos Brasil Annelise Engel Gerbase Maria Augusta de Luca José Ribeiro Gregório |
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Affiliation: | 1.Instituto de Química,Universidade Federal do Rio Grande do Sul (UFRGS),Porto Alegre,Brazil |
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Abstract: | Hybrid organic–inorganic films were prepared using four different hydroxylated soybean oils (HSO) or epoxidized soybean oil
as organic precursor and tetraethyl orthosilicate (TEOS) as inorganic precursor in a mass ratio of HSO:TEOS of 90:10. The
films were macroscopically homogeneous and were characterized by swelling and extraction in solvent, thermogravimetric analysis
(TGA), scanning electron microscopy (SEM) including energy dispersive spectroscopy (EDX), adhesion and hardness. Their properties
varied as a function of the number of OH groups present in the HSO. The best hybrid system was HSOF198/TEOS, with an OH value
of 198 mg of KOH/g, which presents lower swelling coefficient, very good adhesion on aluminium surface and good hardness. |
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Keywords: | Hydroxylated soybean oil Film Organic– inorganic hybrid Sol– gel TEOS |
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