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Evaluation of biodegradation of films poly (3-hydroxybutyrate-co-3-hydroxyvalerate) /carbon nanotubes in respirometric system

Grant number: 15/09565-6
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2015
Effective date (End): June 30, 2016
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal Investigator:Ana Paula Lemes
Grantee:Isabela César Oyama
Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil


Biodegradable polymers are important due to problems caused by the long life cycle of synthetic polymers. A biodegradable polymer of high commercial and academic interest is the poly (3-hydroxybutyrate-co-3-hydroxyvalerate), PHBV. The addition of carbon nanotubes (NTC) in the PHBV matrix to improve its properties (thermal, mechanical, morphological and optical properties) has been addressed in numerous papers. However, the effects of NTC addition on biodegradation are poorly known. Therefore, this project aims to evaluate the biodegradation effects of adding 1% e 2% (m/m) of NTC in the PHBV matrix. The samples of PHBV/NTC nanocomposites will be made by casting. The respirometric system method in aqueous and solid environments, as well as measurements of mass loss over the time, will be used to monitor the biodegradation. Morphological changes in the PHBV/NTC nanocomposites will be evaluated by scanning electron microscopy (MEV).

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MONTAGNA, LARISSA STIEVEN; OYAMA, ISABELA CESAR; BARBOSA CAMARGO LAMPARELLI, RITA DE CASSIA; SILVA, ANA PAULA; DO AMARAL MONTANHEIRO, THAIS LARISSA; LEMES, ANA PAULA. Evaluation of Biodegradation in Aqueous Medium of Poly(Hydroxybutyrate-Co-Hydroxyvalerate)/Carbon Nanotubes Films in Respirometric System. JOURNAL OF RENEWABLE MATERIALS, v. 7, n. 2, p. 117-128, . (15/09565-6)

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