Volume 140, Issue 11 e53623
RESEARCH ARTICLE

Synthesis of bio-polyurethanes with isosorbide and propanediol based poly(lactic acid) diol

Ingridy Dayane dos Santos Silva

Corresponding Author

Ingridy Dayane dos Santos Silva

Academic Unit of Materials Engineering, Federal University of Campina Grande, Campina Grande, Brazil

Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Oberhausen, Germany

Correspondence

Ingridy Dayane dos Santos Silva, Academic Unit of Materials Engineering, Federal University of Campina Grande, Campina Grande 58249-140, Brazil.

Email: [email protected]

Contribution: Conceptualization (lead), Data curation (lead), Formal analysis (lead), ​Investigation (lead), Methodology (lead), Writing - original draft (lead), Writing - review & editing (lead)

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Ananda Albuquerque

Ananda Albuquerque

Academic Unit of Materials Engineering, Federal University of Campina Grande, Campina Grande, Brazil

Contribution: Methodology (supporting)

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Laura Boskamp

Laura Boskamp

Department Polymeric Materials and Mechanical Engineering, Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Bremen, Germany

Contribution: ​Investigation (supporting), Methodology (supporting)

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Andreas Ries

Andreas Ries

Multidisciplinary Center for Technological Investigations, National University of Asunción, San Lorenzo University Campus, San Lorenzo, Paraguay

Contribution: Supervision (supporting)

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Katharina Haag

Katharina Haag

Department Polymeric Materials and Mechanical Engineering, Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Bremen, Germany

Contribution: Supervision (supporting)

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Katharina Koschek

Katharina Koschek

Department Polymeric Materials and Mechanical Engineering, Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Bremen, Germany

Contribution: Supervision (equal)

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Renate Wellen

Renate Wellen

Academic Unit of Materials Engineering, Federal University of Campina Grande, Campina Grande, Brazil

Materials Engineering Department, Federal University of Paraiba, João Pessoa, Brazil

Contribution: Supervision (lead), Writing - review & editing (equal)

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First published: 17 January 2023
Citations: 2

Funding information: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Fundação de Apoio à Pesquisa do Estado da Paraíba

Abstract

Synthesis of bio-polyurethane (Bio-PU) using isosorbide (ISO) and poly(lactic acid) (PLA) diols, (propanediol based poly(lactic acid) (PLAP) and PLA esterified with Soybean oil (PLASO)) and pentamethylene (PDI) isocyanate were performed. Crosslinked Bio-PUs were obtained, and the details of the curing kinetics were determined via Fourier transform infrared spectroscopy (FTIR) spectra and differential scanning calorimetry (DSC). Distinct curing behaviors between Bio-PUs with different PLA diol formulations were observed. The addition of PLAP and PLASO increased the curing conversion at approximately 460% higher than Bio-PU without PLA content, as verified by FTIR. The curing peak temperature (Tp) of Bio-PUs with PLAP ranged from 94 to 163°C, while for PLASO Tp was 132–175°C. Bio-PUs based on PLA diols displayed lower activation energy (Ea) during curing as demonstrated using Friedman model, and higher thermal stability as evidenced through thermogravimetric analyses. Reported data offer reliable tools to evaluate the best rote to synthesize biobased polyurethane and manipulate the degree of crosslinking based on composition and processing conditions, allowing product processing to the desired application.

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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