Synthesis and characterization of a biopolymer of glycerol and macadamia oil

Author(s)

Baldo Pires, Osmar Antonio ^[1] ; Alarcon, Rafael Turra ^[1] ; Gaglieri, Caroline ^[1] ; da Silva-Filho, Luiz Carlos ^[1] ; Bannach, Gilbert ^[1]

Affiliation

^[1] Sao Paulo State Univ UNESP, Sch Sci, Dept Chem, BR-17033260 Bauru, SP - Brazil

• 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: 17/08820-8 - Synthesis and characterization of biopolymers from vegetable oils and glycerol following the principles of green chemistry
• Grantee: Gilbert Bannach
• Support Opportunities: Regular Research Grants
• 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 Opportunities: Scholarships in Brazil - Doctorate
• 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 Opportunities: 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 Opportunities: Scholarships in Brazil - Doctorate
• 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 Opportunities: Regular Research Grants