Now showing1 - 2 of 2
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Synthesis and characterization of aliphatic polyesters from glycerol, by-product of biodiesel production, and adipic acidIn the present work, polyesters were prepared from the polycondensation between glycerol and adipic acid using dibutyltin dilaurate as catalyst. Three glycerol: adipic acid molar ratio were used for the bulk polymerization namely: 2:2; 2:3 and 2:4. FTIR confirmed the esterification of glycerol by the acid for all the polymers, DSC and XRD indicated no crystallinity for all the polymers. The morphology of the material are characterized by globular structure, which may suggest compositional fluctuations throughout the samples.Publicationtype: Journal ArticleScopus© Citations 52 240 221 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Synthesis and characterization of polyesters derived from glycerol and phthalic acid(Universidade Federal de Sao Carlos, 2007); ; ; ; The production of polyester via polycondensation between glycerol and phthalic acid using dibutyltin dilaurate is reported. Three glycerol:phthalic acid molar ratio used for the bulk polymerization were: 2:2;2:3 and 2:4. FTIR confirmed the esterification of glycerol by the acid for all the polymers. DSC indicated no crystallinity, although the XRD plots indicate a very incipient crystallinity for the polymers containing higher amounts of phthalic anhydride. Scanning electron microscopy results indicates high homogeneity for all the polymers prepared.Publicationtype: Journal ArticleScopus© Citations 35 164 168