Walajhone Oliveira Pereira
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Walajhone Oliveira Pereira has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Ana Angélica Mathias Macêdo
Research Laboratory, Federal Institute of Maranhão, Imperatriz, Maranhão, Brazil, Brazil
1 shared publication - Beatriz da Silva Batista
Federal University of Maranhão, Advanced Unit
1 shared publication - Fernando Mendes
Polytechnic University of Coimbra, ESTESC, UCPCBL, Rua 5 de Outubro, SM Bispo, Apartado, Coimbra, 3046-854, Portugal
1 shared publication - Filipe Amaral
University of Aveiro
1 shared publication - Lincoln Almeida Cavalcante
Mechanical Engineering Department, Federal University of Ceará, Fortaleza, Ceará, Brazil, Brazil
1 shared publication - Maria Alexsandra de Sousa Rios
Mechanical Engineering Department, Federal University of Ceará, Fortaleza, Ceará, Brazil, Brazil
1 shared publication
Latest Publications
- Open Access
- 16 July 2025
- Published by MDPI AG in Preprints.org
Effect of Glycerol on Thermal Properties of Galactomannan
Polymeric materials are of great value as they are widely used in everyday society, making it important to synthesize and characterize these materials to enhance them. Galactomannan (Gal), for example, is a neutral natural polymer isolated from the legume endosperm and has substantial use in biomedical, food, cosmetic, and pharmaceutical industries. This research objective was to evaluate the influence of the addition of glycerin on Gal's thermal properties. The material was prepared using heating solutions of pure Gal containing the following glycerin contents: 0.5 and 1.0 mL. Characterizations were performed using Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. Thermal analysis shows that Gal does not have glycerin in its composition and vitrifies rapidly with the rise of temperature, a process not observed in Gal containing glycerin. Therefore, Gal without the addition of plasticizer presents better characteristics to be applied as glue.
- 16 July 2025
- Published by MDPI AG in Preprints.org
Open AccessEffect of Glycerol on Thermal Properties of Galactomannan
Polymeric materials are of great value as they are widely used in everyday society, making it important to synthesize and characterize these materials to enhance them. Galactomannan (Gal), for example, is a neutral natural polymer isolated from the legume endosperm and has substantial use in biomedical, food, cosmetic, and pharmaceutical industries. This research objective was to evaluate the influence of the addition of glycerin on Gal's thermal properties. The material was prepared using heating solutions of pure Gal containing the following glycerin contents: 0.5 and 1.0 mL. Characterizations were performed using Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. Thermal analysis shows that Gal does not have glycerin in its composition and vitrifies rapidly with the rise of temperature, a process not observed in Gal containing glycerin. Therefore, Gal without the addition of plasticizer presents better characteristics to be applied as glue.