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Polyesters derived from itaconic acid for the properties and bio-based content enhancement of soybean oil-based thermosets
Ist Teil von
Green chemistry : an international journal and green chemistry resource : GC, 2015-01, Vol.17 (4), p.2383-2392
Erscheinungsjahr
2015
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
A series of bio-based polyesters were synthesized by melt polycondensation of itaconic acid with diols and glycerol without VOC emission. Their chemical structures were confirmed by FT-IR and
1
H-NMR before they were made to copolymerize with acrylated epoxidized soybean oil (AESO). The thermal and mechanical properties of the resulting thermosets were investigated by differential scanning calorimetry (DSC), tensile testing and dynamic mechanical analysis (DMA). Their coating properties on tinplate and glass plate were also studied. Results showed that the tensile strength, modulus, glass transition temperatures and bio-based content of the AESO-based thermosetting resins were significantly improved after the introduction of the synthesized polyesters. In addition, the modified AESO systems could be well coated on the surface of tinplate and glass plate and good coating properties such as hardness, flexibility, adhesion, solvent resistance and water absorption were demonstrated. They showed great potential for applications as coatings, adhesives and composites.
A series of fully bio-based polyesters were synthesized and they served as petroleum-based compound substitutions to copolymerize with a soybean oil derivative, leading to higher performance and higher percentages of bio-based constituents.