Preparação e caracterização de complexos polieletrolíticos a partir de polímeros de fontes renováveis


  • Marciele Gomes Rodrigues
  • Luís Carlos de Morais
  • Daniel Pasquini



quitosana, carboximetil lignina, lignosulfonato de sódio, complexos de polieletrólitos, esferas


O interesse na utilização de polímeros renováveis é crescente por serem materiais biodegradáveis e recicláveis, tornando-os materiais ideais para aplicações em diversas áreas. Portanto, o objetivo desta pesquisa foi obter complexos de polieletrólitos e esferas através da associação de polímeros de cargas opostas, visando aplicações industriais, por meio de um método simples de mistura. O contato entre as soluções catiônicas e aniônicas, resultou em interações bem-sucedidas de quitosana com a carboximetil lignina e lignosulfonato de sódio. Já as esferas foram obtidas com sucesso por meio da interação entre os polímeros de quitosana e lignosulfonato de sódio, e apresentaram entre 3 e 5 mm. A microscopia eletrônica de varredura e a espectroscopia de raios-X por energia dispersiva, confirmaram propriedades como porosidade na superfície e parte interna das esferas e o teor em massa dos elementos, respectivamente. Em suma, a pesquisa demonstrou a viabilidade de obter complexos de polieletrólitos e esferas a partir de uma abordagem de baixo custo comercial.


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How to Cite

Rodrigues, M. G., de Morais, L. C., & Pasquini, D. (2024). Preparação e caracterização de complexos polieletrolíticos a partir de polímeros de fontes renováveis. OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA, 22(2), e3349.