Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate
Terpolymers 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 ºC for 48 h. The inclusion of TMC,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2014-05-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300012&tlng=en |
| _version_ | 1819284749320978432 |
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| author | Adriana Cristina Motta Eliana Aparecida de Rezende Duek |
| author_facet | Adriana Cristina Motta Eliana Aparecida de Rezende Duek |
| author_sort | Adriana Cristina Motta |
| collection | DOAJ |
| description | Terpolymers 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 ºC 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 (10(5) 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. |
| first_indexed | 2024-12-24T01:52:19Z |
| format | Article |
| id | doaj.art-e58687d9341e42c69842d4fadd65ade8 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-24T01:52:19Z |
| publishDate | 2014-05-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-e58687d9341e42c69842d4fadd65ade82022-12-21T17:21:42ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392014-05-0117361962610.1590/S1516-14392014005000067Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonateAdriana Cristina Motta0Eliana Aparecida de Rezende Duek1Universidade Estadual de CampinasUniversidade Estadual de CampinasTerpolymers 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 ºC 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 (10(5) 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300012&tlng=enbioreabsorbablepropertiessynthesisterpolymerlactideD,L lactideTMC |
| spellingShingle | Adriana Cristina Motta Eliana Aparecida de Rezende Duek Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate Materials Research bioreabsorbable properties synthesis terpolymer lactide D,L lactide TMC |
| title | Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate |
| title_full | Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate |
| title_fullStr | Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate |
| title_full_unstemmed | Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate |
| title_short | Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate |
| title_sort | synthesis and characterization of a novel terpolymer based on l lactide d l lactide and trimethylene carbonate |
| topic | bioreabsorbable properties synthesis terpolymer lactide D,L lactide TMC |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300012&tlng=en |
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