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<p>Driven by the search for potential applications of sargassum biomass, a novel approach involving the synthesis of interpenetrating polymer networks (IPNs) based on polyurethane (PU) and polymethyl methacrylate (PMMA) is proposed. This paper investigated the influence and interaction of untreated sargassum particles (SgP) at three concentrations (1, 3, 5%wt) as a natural modifier in a 50/50 PU/PMMA matrix relation. The samples were obtained following the sequential method and characterized through fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The presented results show the absence of undesirable reactions and the obtaining a hybrid material. However, the presence of particles slightly affected the polymerization of PMMA. In addition to this the presence of SgP did not affect the thermal stability and morphology of the hybrid composites. This opens the possibility of using SgP in new applications of IPNs.</p> Graphical abstract <p></p>

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Study of interpenetrating polymer networks (IPNs) based on PU/PMMA reinforced with Sargassum particles (SgP)

  • 期刊论文

  • 发表日期：

    2025年10月27日

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  • Monserrat G. Escobar-Medina,
  • Claudia E. Ramos-Galván,
  • Beatriz A. Salazar-Cruz,
  • M. Yolanda Chávez-Cinco,
  • J. Luis Rivera-Armenta

摘要

Driven by the search for potential applications of sargassum biomass, a novel approach involving the synthesis of interpenetrating polymer networks (IPNs) based on polyurethane (PU) and polymethyl methacrylate (PMMA) is proposed. This paper investigated the influence and interaction of untreated sargassum particles (SgP) at three concentrations (1, 3, 5%wt) as a natural modifier in a 50/50 PU/PMMA matrix relation. The samples were obtained following the sequential method and characterized through fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The presented results show the absence of undesirable reactions and the obtaining a hybrid material. However, the presence of particles slightly affected the polymerization of PMMA. In addition to this the presence of SgP did not affect the thermal stability and morphology of the hybrid composites. This opens the possibility of using SgP in new applications of IPNs.

Graphical abstract