Data/hora: 08/06/2024 05:35:04

Biblioteca(s): | Embrapa Agroenergia.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 25/06/2021
Data da última atualização: | 25/06/2021
Autoria: | SERRA, D. R.; FERREIRA, G. R.; BARROSO, R. G. M. R.; JENSEN, A. T.; VALADARES, L. F.; MACHADO, F.
Afiliação: | DÉBORA R. SERRA, Universidade de Brasília; GABRIELLA R. FERREIRA, Universidade de Brasília; RAISSA GABRIELA M. REIS BARROSO, Universidade de Brasília; ALAN T. JENSEN, Universidade de Brasília; LEONARDO FONSECA VALADARES, CNPAE; FABRICIO MACHADO, Universidade de Brasília.
Título: | Novel hydrogel from functionalized glycerol and microfibrillated cellulose: towards an environmentally-friendly design.
Ano de publicação: | 2021
Fonte/Imprenta: | Cellulose, 2021.
DOI: | https://doi.org/10.1007/s10570-021-03960-1
Idioma: | Inglês
Notas: | [On-line first].
Conteúdo: | Glycerol is one of the major residues obtained during biodiesel transesterification. Microfibrillated cellulose was obtained from the empty bunches of palm oil, which is a residue of biomass extracted oil. Therefore, the objective of this work is to apply two important residues of oil chemistry industry, glycerol and lignocellulose biomass, in addition to acrylic acid to synthesize a polymer matrix in form of hydrogel for water absorption applications. To produce the polymer matrix, glycerol was modified with acrylic acid to obtain n-acylglycerol macromonomer with different reactive groups. The solution polymerizations were carried out between n-acylglycerol macromonomer, acrylic acid and bis-acrylamide in presence of microfibrillated cellulose (obtained from empty bunches of palm oil) to obtain hydrogels. The final material presented a high capacity of swelling water. The best material considering the swelling water contained 25 wt% of acrylic acid and 5 wt% of cellulose microfiber and absorbed 1400% of its own weight when produced in the optimized condition.
Palavras-Chave: | Functionalized glycerol; Hydrogel; Microfibrillated cellulose.
Thesaurus Nal: | Glycerol; Nanocomposites; Oil palm products; Swelling (physiological).
Categoria do assunto: | --
Registro original: | Embrapa Agroenergia (CNPAE)
Exemplares: | CNPAE - (3879-1) - UPC - AP - DD -  -  -  - DIS