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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis and characterization of a biopolymer of glycerol and macadamia oil

Full text
Author(s):
Baldo Pires, Osmar Antonio [1] ; Alarcon, Rafael Turra [1] ; Gaglieri, Caroline [1] ; da Silva-Filho, Luiz Carlos [1] ; Bannach, Gilbert [1]
Total Authors: 5
Affiliation:
[1] Sao Paulo State Univ UNESP, Sch Sci, Dept Chem, BR-17033260 Bauru, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 137, n. 1, p. 161-170, JUL 2019.
Web of Science Citations: 3
Abstract

The main objective of this work was the synthesis of a polymer using a vegetable and renewable feedstock and following the green chemistry principles. The use of macadamia oil (extracted from Macadamia integrifolia nuts) in a synthesis route was achieved under mild temperature and pressure conditions. The produced material was submitted to a series of characterization techniques. Thermal analysis was used to determine its thermal stability (140.0 degrees C), its degradation pattern with the involved kinetic, and its glass transition (midpoint at 48.8 degrees C). Infrared spectrometry found the general mechanism of polymerization of macadamia oil with pre-polymer (glycerol and maleic anhydride) and identified functional groups of the polymer. Some interesting characteristics of the macadamia polymer include good removal of organic dyes from aqueous solutions, which demonstrates the great interaction of its surface with organic molecules that leads to a potential application as an encapsulation material for substances of nutritional and pharmacological interests. This adsorption may be related to the polymer surface that is very rough as shown by scanning electron microscopy images. Another interesting phenomenon demonstrated was the macadamia polymer fluorescence that indicates potential applications in electronic devices. (AU)

FAPESP's process: 13/09022-7 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of antibiotics (fluoroquinolones) with some co-formers
Grantee:Massao Ionashiro
Support type: Regular Research Grants
FAPESP's process: 16/01599-1 - Studies about the use of NbCl5 in multicomponent reactions for the synthesis of organic dyes
Grantee:Luiz Carlos da Silva Filho
Support type: Regular Research Grants
FAPESP's process: 17/08820-8 - Synthesis and characterization of biopolymers from vegetable oils and glycerol following the principles of green chemistry
Grantee:Gilbert Bannach
Support type: Regular Research Grants
FAPESP's process: 18/03460-6 - Structural modification of triglycerides aiming new monomers and polymers, using different synthetic routes: microwave irradiation and photopolymerization
Grantee:Rafael Turra Alarcon
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/00615-0 - Studies on the synthesis and photochemical and photophysical characterization of quinoline derivatives with donor-p-acceptor structure for use as sensitizing dyes in organic electronic devices
Grantee:Giovanny Carvalho dos Santos
Support type: Scholarships in Brazil - Doctorate