24 results on '"de Menezes, Beatriz Rossi Canuto"'
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2. Functionalization of Carbon Nanotube and Applications
3. Functionalization of Graphene and Applications
4. Synthesis of β-AgVO3 nanowires by hydrothermal and precipitation routes: a comparative study
5. Covalently γ-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix
6. Carbon and TiO2 synergistic effect on methylene blue adsorption
7. Phase transition of TiO2 nanoparticles into titanate nanorods via hydrothermal reactions
8. Silver-Coated Silica Nanoparticles Modified with MPS: Potential Antimicrobial Biomaterials Applied in Glaze and Soft Reliner
9. Recent progress on polymer scaffolds production: Methods, main results, advantages and disadvantages
10. Functionalization of Graphene and Applications
11. Functionalization of Carbon Nanotube and Applications
12. Nanocomposites obtained by incorporation of silanized silver nanowires to improve mechanical properties and prevent fungal adhesion
13. Synthesis, characterization and application of Nb2O5-doped zinc oxide for solar-based photodegradation of 4-chlorophenol
14. Current advances in drug delivery of nanoparticles for respiratory disease treatment
15. PCL/β‐AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials
16. Non-Isothermal Crystallization Kinetics of Injection Grade PHBV and PHBV/Carbon Nanotubes Nanocomposites Using Isoconversional Method
17. α-wollastonite crystallization at low temperature
18. Current advances in bone tissue engineering concerning ceramic and bioglass scaffolds: A review
19. Non-Isothermal Crystallization Kinetic of Polyethylene/Carbon Nanotubes Nanocomposites Using an Isoconversional Method.
20. Carbon and TiO 2 synergistic effect on methylene blue adsorption
21. FrontMatter.
22. Synthesis of β-AgVO3nanowires by hydrothermal and precipitation routes: a comparative study
23. Covalently ?-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix
- Abstract
Abstract: The improvement of compatibility between carbon nanotubes (CNTs) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was achieved using CNT functionalized with ?-aminobutyric acid (GABA). The efficiency of the CNT functionalization with GABA was evaluated by X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (FT-IR), Raman spectroscopy, and transmission electron microscopy (TEM). The PHBV/CNT nanocomposites were produced in the molten state with the addition of 0.5 wt% of CNT (pristine, oxidized and functionalized with GABA) and characterized concerning the Izod impact strength tests. The impact fracture morphologies were analyzed using scanning electron microscopy. The results showed that GABA was covalently attached to CNT, resulting in the detection of nitrogen in the XPS survey, the shift of carbonyl peak wavelength on FT-IR, and a higher degree of structural disorder, detected by Raman and observed in TEM images. The impact strength was not significantly affected by the introduction of CNT; however, the impact fracture mechanism was changed from fragile to ductile when CNT was functionalized with GABA. These results are promising for the production of environmentally friendly nanocomposites with superior properties. Graphic abstract:
24. BackMatter.
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