Synthesis of four‐arm star poly(L‐lactide) oligomers using an in situ‐generated calcium‐based initiator
Identifieur interne : 007D66 ( Main/Exploration ); précédent : 007D65; suivant : 007D67Synthesis of four‐arm star poly(L‐lactide) oligomers using an in situ‐generated calcium‐based initiator
Auteurs : Karina A. George [Australie] ; François Schué [France] ; Traian V. Chirila [Australie] ; Edeline Wentrup-Byrne [Australie]Source :
- Journal of Polymer Science Part A: Polymer Chemistry [ 0887-624X ] ; 2009-09-15.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
- Alkoxide, Argon atmosphere, Bulk polymerization, Bulk polymerizations, Calcium, Calcium alkoxide, Calcium alkoxide initiator, Calcium compound, Calcium hydride, Carboxylated lactyl, Chem, Coadded scans, Coinitiator, Conversion plot, Crude polymers, Cyclic esters, Dalton trans, Early stages, Excellent agreement, Experimental study, Feed mixture, Feed mole ratio, Feed ratio, Feed ratios, Ftir spectroscopy, Full conversion, Heterogeneous polymerization, Huang, Hydride, Hydroxyl, Hydroxyl groups, Initial ratios, Initiator, Inorg chem, Kinetic data, Kinetic plots, Lactic acid polymer, Lactide, Lactoyllactic acid, Laser power, Linear relationship, Living polymer, Macromol chem phys, Macromolecule, Makromol chem, Molar ratio, Mole ratio, Molecular weight, Octoate, Oligomer, Optically active polymer, Peak area, Pentaerythritol, Pentaerythritol hydroxyl groups, Pentaerythritol molecules, Plla, Plla samples, Polym, Polym bull, Polym chem, Polymer, Polymer chemistry, Polymer science, Polymeric, Polymeric arms, Polymerization, Polymerization mixture, Preparation, Priming activity, Pure appl chem, Queensland, Queensland university, Raman microspectroscopy, Reaction mixture, Reaction scheme, Reference band, Reference spectra, Ring opening polymerization, Secondary hydroxyl groups, Small bands, Solid lines, Spectroscopy, Stannous, Stannous octoate, Star oligomers, Star plla, Star plla oligomers, Star plla polymers, Star polymer, Star polymers, Theoretical values, Trace impurities, Trace quantities, Unreacted calcium hydride, Wiley periodicals.
- Teeft :
- Alkoxide, Argon atmosphere, Bulk polymerizations, Calcium, Calcium alkoxide, Calcium alkoxide initiator, Calcium hydride, Carboxylated lactyl, Chem, Coadded scans, Coinitiator, Conversion plot, Crude polymers, Cyclic esters, Dalton trans, Early stages, Excellent agreement, Feed mixture, Feed mole ratio, Feed ratio, Feed ratios, Ftir spectroscopy, Full conversion, Huang, Hydride, Hydroxyl, Hydroxyl groups, Initial ratios, Initiator, Inorg chem, Kinetic data, Kinetic plots, Lactide, Lactoyllactic acid, Laser power, Linear relationship, Macromol chem phys, Macromolecule, Makromol chem, Molar ratio, Mole ratio, Molecular weight, Octoate, Peak area, Pentaerythritol, Pentaerythritol hydroxyl groups, Pentaerythritol molecules, Plla, Plla samples, Polym, Polym bull, Polym chem, Polymer, Polymer chemistry, Polymer science, Polymeric, Polymeric arms, Polymerization, Polymerization mixture, Pure appl chem, Queensland, Queensland university, Raman microspectroscopy, Reaction mixture, Reaction scheme, Reference band, Reference spectra, Secondary hydroxyl groups, Small bands, Solid lines, Spectroscopy, Stannous, Stannous octoate, Star oligomers, Star plla, Star plla oligomers, Star plla polymers, Star polymer, Star polymers, Theoretical values, Trace impurities, Trace quantities, Unreacted calcium hydride, Wiley periodicals.
Abstract
Using an in situ‐generated calcium‐based initiating species derived from pentaerythritol, the bulk synthesis of well‐defined four‐arm star poly(L‐lactide) oligomers has been studied in detail. The substitution of the traditional initiator, stannous octoate with calcium hydride allowed the synthesis of oligomers that had both low PDIs and a comparable number of polymeric arms (3.7–3.9) to oligomers of similar molecular weight. Investigations into the degree of control observed during the course of the polymerization found that the insolubility of pentaerythritol in molten L‐lactide resulted in an uncontrolled polymerization only when the feed mole ratio of L‐lactide to pentaerythritol was 13. At feed ratios of 40 and greater, a pseudoliving polymerization was observed. As part of this study, in situ FT‐Raman spectroscopy was demonstrated to be a suitable method to monitor the kinetics of the ring‐opening polymerization of lactide. The advantages of using this technique rather than FTIR‐ATR and 1H NMR for monitoring L‐lactide consumption during polymerization are discussed. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 4736–4748, 2009
Url:
DOI: 10.1002/pola.23527
Affiliations:
- Australie, France
- Languedoc-Roussillon, Occitanie (région administrative)
- Montpellier
- PRES Sud de France, Université Montpellier 2
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000832
- to stream Istex, to step Curation: 000832
- to stream Istex, to step Checkpoint: 000E03
- to stream Main, to step Merge: 008461
- to stream PascalFrancis, to step Corpus: 002B96
- to stream PascalFrancis, to step Curation: 003427
- to stream PascalFrancis, to step Checkpoint: 002812
- to stream Main, to step Merge: 008781
- to stream Main, to step Curation: 007D66
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Synthesis of four‐arm star poly(L‐lactide) oligomers using an in situ‐generated calcium‐based initiator</title><author><name sortKey="George, Karina A" sort="George, Karina A" uniqKey="George K" first="Karina A." last="George">Karina A. George</name></author><author><name sortKey="Schue, Francois" sort="Schue, Francois" uniqKey="Schue F" first="François" last="Schué">François Schué</name></author><author><name sortKey="Chirila, Traian V" sort="Chirila, Traian V" uniqKey="Chirila T" first="Traian V." last="Chirila">Traian V. Chirila</name></author><author><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:2AA9E2FA3E443A980B2BD4A6D254EA314BC2C35D</idno><date when="2009" year="2009">2009</date><idno type="doi">10.1002/pola.23527</idno><idno type="url">https://api.istex.fr/document/2AA9E2FA3E443A980B2BD4A6D254EA314BC2C35D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000832</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000832</idno><idno type="wicri:Area/Istex/Curation">000832</idno><idno type="wicri:Area/Istex/Checkpoint">000E03</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000E03</idno><idno type="wicri:doubleKey">0887-624X:2009:George K:synthesis:of:four</idno><idno type="wicri:Area/Main/Merge">008461</idno><idno type="wicri:source">INIST</idno><idno type="RBID">Pascal:09-0384125</idno><idno type="wicri:Area/PascalFrancis/Corpus">002B96</idno><idno type="wicri:Area/PascalFrancis/Curation">003427</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">002812</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">002812</idno><idno type="wicri:doubleKey">0887-624X:2009:George K:synthesis:of:four</idno><idno type="wicri:Area/Main/Merge">008781</idno><idno type="wicri:Area/Main/Curation">007D66</idno><idno type="wicri:Area/Main/Exploration">007D66</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Synthesis of four‐arm star poly(<hi rend="smallCaps">L</hi>‐lactide) oligomers using an <hi rend="italic">in situ</hi>‐generated calcium‐based initiator</title><author><name sortKey="George, Karina A" sort="George, Karina A" uniqKey="George K" first="Karina A." last="George">Karina A. George</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>School of Physical and Chemical Sciences, Queensland University of Technology, 2 George St., Brisbane, Queensland 4001</wicri:regionArea><wicri:noRegion>Queensland 4001</wicri:noRegion></affiliation></author><author><name sortKey="Schue, Francois" sort="Schue, Francois" uniqKey="Schue F" first="François" last="Schué">François Schué</name><affiliation wicri:level="4"><country xml:lang="fr">France</country><wicri:regionArea>Organisation Moleculaire Evolution et Materiaux Fluores, UMR CNRS 5073 Université Montpellier 2</wicri:regionArea><placeName><settlement type="city">Montpellier</settlement><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region></placeName><orgName type="university">Université Montpellier 2</orgName><orgName type="institution" wicri:auto="newGroup">PRES Sud de France</orgName></affiliation></author><author><name sortKey="Chirila, Traian V" sort="Chirila, Traian V" uniqKey="Chirila T" first="Traian V." last="Chirila">Traian V. Chirila</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>School of Physical and Chemical Sciences, Queensland University of Technology, 2 George St., Brisbane, Queensland 4001</wicri:regionArea><wicri:noRegion>Queensland 4001</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Queensland Eye Institute, 41 Annerley Road, South Brisbane, Queensland 4101</wicri:regionArea><wicri:noRegion>Queensland 4101</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, St. Lucia, Brisbane, Queensland 4072</wicri:regionArea><wicri:noRegion>Queensland 4072</wicri:noRegion></affiliation></author><author><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>School of Physical and Chemical Sciences, Queensland University of Technology, 2 George St., Brisbane, Queensland 4001</wicri:regionArea><wicri:noRegion>Queensland 4001</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Tissue Repair and Regeneration Research Program, Institute for Health and Biomedical Innovation (IHBI), Queensland University of Technology, 2 George St, Brisbane, Queensland 4001</wicri:regionArea><wicri:noRegion>Queensland 4001</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Australie</country></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Correspondence address: School of Physical and Chemical Sciences, Queensland University of Technology, 2 George St., Brisbane, Queensland 4001</wicri:regionArea><wicri:noRegion>Queensland 4001</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Polymer Science Part A: Polymer Chemistry</title><title level="j" type="alt">JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY</title><idno type="ISSN">0887-624X</idno><idno type="eISSN">1099-0518</idno><imprint><biblScope unit="vol">47</biblScope><biblScope unit="issue">18</biblScope><biblScope unit="page" from="4736">4736</biblScope><biblScope unit="page" to="4748">4748</biblScope><biblScope unit="page-count">14</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2009-09-15">2009-09-15</date></imprint><idno type="ISSN">0887-624X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0887-624X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkoxide</term><term>Argon atmosphere</term><term>Bulk polymerization</term><term>Bulk polymerizations</term><term>Calcium</term><term>Calcium alkoxide</term><term>Calcium alkoxide initiator</term><term>Calcium compound</term><term>Calcium hydride</term><term>Carboxylated lactyl</term><term>Chem</term><term>Coadded scans</term><term>Coinitiator</term><term>Conversion plot</term><term>Crude polymers</term><term>Cyclic esters</term><term>Dalton trans</term><term>Early stages</term><term>Excellent agreement</term><term>Experimental study</term><term>Feed mixture</term><term>Feed mole ratio</term><term>Feed ratio</term><term>Feed ratios</term><term>Ftir spectroscopy</term><term>Full conversion</term><term>Heterogeneous polymerization</term><term>Huang</term><term>Hydride</term><term>Hydroxyl</term><term>Hydroxyl groups</term><term>Initial ratios</term><term>Initiator</term><term>Inorg chem</term><term>Kinetic data</term><term>Kinetic plots</term><term>Lactic acid polymer</term><term>Lactide</term><term>Lactoyllactic acid</term><term>Laser power</term><term>Linear relationship</term><term>Living polymer</term><term>Macromol chem phys</term><term>Macromolecule</term><term>Makromol chem</term><term>Molar ratio</term><term>Mole ratio</term><term>Molecular weight</term><term>Octoate</term><term>Oligomer</term><term>Optically active polymer</term><term>Peak area</term><term>Pentaerythritol</term><term>Pentaerythritol hydroxyl groups</term><term>Pentaerythritol molecules</term><term>Plla</term><term>Plla samples</term><term>Polym</term><term>Polym bull</term><term>Polym chem</term><term>Polymer</term><term>Polymer chemistry</term><term>Polymer science</term><term>Polymeric</term><term>Polymeric arms</term><term>Polymerization</term><term>Polymerization mixture</term><term>Preparation</term><term>Priming activity</term><term>Pure appl chem</term><term>Queensland</term><term>Queensland university</term><term>Raman microspectroscopy</term><term>Reaction mixture</term><term>Reaction scheme</term><term>Reference band</term><term>Reference spectra</term><term>Ring opening polymerization</term><term>Secondary hydroxyl groups</term><term>Small bands</term><term>Solid lines</term><term>Spectroscopy</term><term>Stannous</term><term>Stannous octoate</term><term>Star oligomers</term><term>Star plla</term><term>Star plla oligomers</term><term>Star plla polymers</term><term>Star polymer</term><term>Star polymers</term><term>Theoretical values</term><term>Trace impurities</term><term>Trace quantities</term><term>Unreacted calcium hydride</term><term>Wiley periodicals</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Activité amorceur</term><term>Alcoolate</term><term>Composé du calcium</term><term>Etoile 4 branches</term><term>Etude expérimentale</term><term>Lactique acide polymère</term><term>Oligomère</term><term>Polymère optiquement actif</term><term>Polymère vivant</term><term>Polymère étoile</term><term>Polymérisation masse</term><term>Polymérisation ouverture cycle</term><term>Polymérisation phase hétérogène</term><term>Préparation</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Alkoxide</term><term>Argon atmosphere</term><term>Bulk polymerizations</term><term>Calcium</term><term>Calcium alkoxide</term><term>Calcium alkoxide initiator</term><term>Calcium hydride</term><term>Carboxylated lactyl</term><term>Chem</term><term>Coadded scans</term><term>Coinitiator</term><term>Conversion plot</term><term>Crude polymers</term><term>Cyclic esters</term><term>Dalton trans</term><term>Early stages</term><term>Excellent agreement</term><term>Feed mixture</term><term>Feed mole ratio</term><term>Feed ratio</term><term>Feed ratios</term><term>Ftir spectroscopy</term><term>Full conversion</term><term>Huang</term><term>Hydride</term><term>Hydroxyl</term><term>Hydroxyl groups</term><term>Initial ratios</term><term>Initiator</term><term>Inorg chem</term><term>Kinetic data</term><term>Kinetic plots</term><term>Lactide</term><term>Lactoyllactic acid</term><term>Laser power</term><term>Linear relationship</term><term>Macromol chem phys</term><term>Macromolecule</term><term>Makromol chem</term><term>Molar ratio</term><term>Mole ratio</term><term>Molecular weight</term><term>Octoate</term><term>Peak area</term><term>Pentaerythritol</term><term>Pentaerythritol hydroxyl groups</term><term>Pentaerythritol molecules</term><term>Plla</term><term>Plla samples</term><term>Polym</term><term>Polym bull</term><term>Polym chem</term><term>Polymer</term><term>Polymer chemistry</term><term>Polymer science</term><term>Polymeric</term><term>Polymeric arms</term><term>Polymerization</term><term>Polymerization mixture</term><term>Pure appl chem</term><term>Queensland</term><term>Queensland university</term><term>Raman microspectroscopy</term><term>Reaction mixture</term><term>Reaction scheme</term><term>Reference band</term><term>Reference spectra</term><term>Secondary hydroxyl groups</term><term>Small bands</term><term>Solid lines</term><term>Spectroscopy</term><term>Stannous</term><term>Stannous octoate</term><term>Star oligomers</term><term>Star plla</term><term>Star plla oligomers</term><term>Star plla polymers</term><term>Star polymer</term><term>Star polymers</term><term>Theoretical values</term><term>Trace impurities</term><term>Trace quantities</term><term>Unreacted calcium hydride</term><term>Wiley periodicals</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Calcium</term><term>Polymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Using an in situ‐generated calcium‐based initiating species derived from pentaerythritol, the bulk synthesis of well‐defined four‐arm star poly(L‐lactide) oligomers has been studied in detail. The substitution of the traditional initiator, stannous octoate with calcium hydride allowed the synthesis of oligomers that had both low PDIs and a comparable number of polymeric arms (3.7–3.9) to oligomers of similar molecular weight. Investigations into the degree of control observed during the course of the polymerization found that the insolubility of pentaerythritol in molten L‐lactide resulted in an uncontrolled polymerization only when the feed mole ratio of L‐lactide to pentaerythritol was 13. At feed ratios of 40 and greater, a pseudoliving polymerization was observed. As part of this study, in situ FT‐Raman spectroscopy was demonstrated to be a suitable method to monitor the kinetics of the ring‐opening polymerization of lactide. The advantages of using this technique rather than FTIR‐ATR and 1H NMR for monitoring L‐lactide consumption during polymerization are discussed. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 4736–4748, 2009</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement><orgName><li>PRES Sud de France</li><li>Université Montpellier 2</li></orgName></list><tree><country name="Australie"><noRegion><name sortKey="George, Karina A" sort="George, Karina A" uniqKey="George K" first="Karina A." last="George">Karina A. George</name></noRegion><name sortKey="Chirila, Traian V" sort="Chirila, Traian V" uniqKey="Chirila T" first="Traian V." last="Chirila">Traian V. Chirila</name><name sortKey="Chirila, Traian V" sort="Chirila, Traian V" uniqKey="Chirila T" first="Traian V." last="Chirila">Traian V. Chirila</name><name sortKey="Chirila, Traian V" sort="Chirila, Traian V" uniqKey="Chirila T" first="Traian V." last="Chirila">Traian V. Chirila</name><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name><name sortKey="Wentrup Yrne, Edeline" sort="Wentrup Yrne, Edeline" uniqKey="Wentrup Yrne E" first="Edeline" last="Wentrup-Byrne">Edeline Wentrup-Byrne</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Schue, Francois" sort="Schue, Francois" uniqKey="Schue F" first="François" last="Schué">François Schué</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 007D66 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 007D66 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Asie
|area= AustralieFrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:2AA9E2FA3E443A980B2BD4A6D254EA314BC2C35D
|texte= Synthesis of four‐arm star poly(L‐lactide) oligomers using an in situ‐generated calcium‐based initiator
}}
| This area was generated with Dilib version V0.6.33. |  |