Volume 140, Issue 11 e53619
RESEARCH ARTICLE

Tuning of renewable sponge-like polyurethane physical-chemical and morphological properties using the pullulan as a reactive filler

Lana S. Maia

Lana S. Maia

Department of Chemistry and Environmental, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil

Contribution: Methodology (lead), Writing - original draft (lead)

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Anne Shayene C. de Bomfim

Anne Shayene C. de Bomfim

Department of Materials and Technology, School of Engineering and Science, São Paulo State University (UNESP), São Paulo, Brazil

Contribution: Methodology (lead), Validation (lead)

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Daniel M. de Oliveira

Daniel M. de Oliveira

Department of Materials and Technology, School of Engineering and Science, São Paulo State University (UNESP), São Paulo, Brazil

Contribution: ​Investigation (lead), Methodology (lead), Writing - review & editing (lead)

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Fernanda R. Pinhati

Fernanda R. Pinhati

Department of Chemistry and Environmental, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil

Contribution: Resources (supporting), Visualization (lead)

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Monique O. T. da Conceição

Monique O. T. da Conceição

Department of Mechanical and Energy, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil

Contribution: Formal analysis (lead), ​Investigation (lead), Project administration (lead)

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Hernane S. Barud

Hernane S. Barud

Department of Biotechnology, Laboratory of Polymers and Biomaterials, University of Araraquara (UNIARA), Araraquara, Brazil

Contribution: Conceptualization (supporting)

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Simone A. Medeiros

Simone A. Medeiros

Chemical Engineering Department, Engineering School of Lorena, University of São Paulo, São Paulo, Brazil

Contribution: Conceptualization (lead), Funding acquisition (supporting)

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Derval S. Rosa

Derval S. Rosa

Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, Brazil

Contribution: Funding acquisition (supporting), Supervision (supporting)

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Daniella R. Mulinari

Corresponding Author

Daniella R. Mulinari

Department of Mechanical and Energy, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil

Correspondence

Daniella R. Mulinari, Department of Mechanical and Energy, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.

Email: [email protected]; [email protected]

Contribution: Funding acquisition (lead), Project administration (lead), Resources (lead), Supervision (lead), Validation (lead), Visualization (lead), Writing - review & editing (lead)

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First published: 19 January 2023
Citations: 3

Funding information: Fundação Carlos Chagas de Amparo à Pesquisa do Estado do Rio de Janeiro, Grant/Award Numbers: E-26/010.101232/2018, E-26/010/002530/2019, E-26/210.450/2021; FAPESP, Grant/Award Numbers: FAPESP 2020/13703-3, FAPESP 2019/04269-0

Abstract

This study aimed to evaluate the effect of pullulan (Pull) on a renewable polyurethane sponge-like scaffold synthesized from the Pull mixture with the castor oil-based polyol and the prepolymer using the situ foaming method. The Pull contents on the sponge-like are 5, 10, and 20 wt.%. The samples were evaluated by optical microscopy (OM), scanning electron microscopy (SEM), density, Fourier transform infrared spectroscopy (FTIR), contact angle, Thermogravimetry, X-ray diffraction analysis (XRD), and compression strength test, respectively. FTIR results indicated that Pull was hydrogen-bonded to PU foam chains and increased the sponge-like scaffolds density, inducing a decrease in average cell size compared to the pristine PU, confirming that they act as nucleating agents. The Pull addition improved PU foams' hydrophobicity and mechanical properties and caused a thermal stability median between Pull and pristine PU. Thus, all renewable sponge-like scaffolds were hydrophobics and presented appropriate mechanical behavior, exhibiting better physicochemical properties, and appearing as promising candidates for biomedical applications.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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