Data/hora: 16/06/2024 04:23:42

Biblioteca(s): | Embrapa Agroenergia.
Data corrente: | 01/11/2022
Data da última atualização: | 03/11/2022
Autoria: | JENSEN, A. T.; GAMBETTA, R.; MACHADO, F.
Afiliação: | ALAN THYAGO JENSEN, UNIVERSIDADE DE BRASÍLIA; ROSSANO GAMBETTA, CNPAE; FABRICIO MACHADO, UNIVERSIDADE DE BRASÍLIA.
Título: | A novel polyHIPE-like catalyst for esterification reactions: on the synthesis of sulfonated poly(styrene-co-n-acylglycerol) and its use for efficient conversion of oleic acid to methyl oleate.
Ano de publicação: | 2022
Fonte/Imprenta: | Macromolecular Reaction Engineering, 2200055, 2022.
DOI: | 10.1002/mren.202200055
Idioma: | Inglês
Conteúdo: | The current work describes the synthesis of a new polyHIPE-like sulfonated poly(styrene-co-n-acylglycerol) and its use as an efficient heterogeneous catalyst to convert oleic acid into methyl oleate in esterification reactions. This new environmentally friendly polymer incorporates n-acylglycerol macromonomer as a versatile strategy for glycerol valorization. Macroporous micrometric polymer particles are synthesized through suspension polymerization process without using porogenic agents. polyHIPE-like copolymers formed with different feed compositions of styrene and n-acylglycerol are chemically modified via sulfonation reactions to form a highly efficient catalyst for esterification of oleic acid to methyl oleate, exhibiting conversions lying in the interval from 52% to 96%, depending mainly on the amount of n-acylglycerol macromonomer into the copolymer chains. The experimental results indicate the great potential of this new heterogeneous catalyst based on modified poly(styrene-co-n-acylglycerol) to be successfully employed in esterification reactions of vegetable oils intended for the production of long chain alkyl esters of carboxylic acids, widely used as biofuels.
Thesagro: | Desenvolvimento Sustentável; Óleo Vegetal.
Thesaurus Nal: | Biodiesel; Oleic acid; Vegetable oil.
Categoria do assunto: | --
Registro original: | Embrapa Agroenergia (CNPAE)
Exemplares: | CNPAE - (4091-1) - UPC - AP - DD -  -  -  - DIS