Synthesis And Characterization Of A Novel Terpolymer Based On L-lactide, D,l-lactide And Trimethylene Carbonate

dc.creatorMotta A.C.
dc.creatorDe Rezende Duek E.A.
dc.date2014
dc.date2015-06-25T17:52:42Z
dc.date2015-11-26T14:18:58Z
dc.date2015-06-25T17:52:42Z
dc.date2015-11-26T14:18:58Z
dc.date.accessioned2018-03-28T21:20:20Z
dc.date.available2018-03-28T21:20:20Z
dc.identifier
dc.identifierMaterials Research. Universidade Federal De Sao Carlos, v. 17, n. 3, p. 619 - 626, 2014.
dc.identifier15161439
dc.identifier10.1590/S1516-14392014005000067
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84906220196&partnerID=40&md5=dffa38303faaa8a249699dfebba552e7
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/86321
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86321
dc.identifier2-s2.0-84906220196
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1243797
dc.descriptionTerpolymers of L-lactide, D,L-lactide and trimethylene carbonate (TMC) were synthesized via the ring-opening polymerization reaction for cyclic monomers using stannous octoate as the initiator at a ratio of ~0.05 mol% (monomers/(SnOct)2). Synthesis was done at 130 °C for 48 h. The inclusion of TMC, an aliphatic elastomeric polycarbonate, alongside polymer chain segments containing L-lactide and D,L-lactide, was expected to yield a material with improved properties such as increased elongation; this would overcome the limitation of copolymers consisting entirely of lactide and D,L-lactide. The terpolymer properties were assessed by Nuclear magnetic resonance spectroscopy 1H and 13C NMR, infrared spectroscopy, differential scanning calorimetry and thermogravimetry, with particular attention being given to the effect of TMC on the copolymer of L-lactide-co-D,L-lactide. The mixing of these polymers resulted in material with a high molar mass (105 g/mol). The mechanical properties of the terpolymer were assessed using pins of this material that were tested by mechanical flexion at three points. When compared with results for the copolymer PLDLA there was a decrease in Young's modulus for the TMC-containing terpolymer.
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dc.languageen
dc.publisherUniversidade Federal de Sao Carlos
dc.relationMaterials Research
dc.rightsaberto
dc.sourceScopus
dc.titleSynthesis And Characterization Of A Novel Terpolymer Based On L-lactide, D,l-lactide And Trimethylene Carbonate
dc.typeArtículos de revistas


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