Synthesis and characterization of A–B–A triblock copolymers derived from chloro-telechelic poly(l-lactide): combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP)
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| Title: | Synthesis and characterization of A–B–A triblock copolymers derived from chloro-telechelic poly(l-lactide): combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP) |
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| Authors: | Messman, Jamie M. messmanjm@ornl.gov, Scheuer, Adam D.1, Storey, Robson F.1 |
| Source: | Polymer. May2005, Vol. 46 Issue 11, p3628-3638. 11p. |
| Subjects: | Polymerization, Block copolymers, Copolymers, Acrylates, Polymers |
| Abstract: | Abstract: Ring-opening polymerization (ROP) of l-lactide was combined with atom transfer radical polymerization (ATRP) to produce well-defined linear block copolymers. Poly(l-lactide) (PLLA) was synthesized via ROP using ethylene glycol as an initiator and stannous octoate as a catalyst. The isolated hydroxy-telechelic PLLA was reacted with thionyl chloride and pyridine in toluene to afford chloro-telechelic PLLA (Cl-PLLA-Cl). The latter was employed as a macroinitiator in the synthesis of A–B–A triblock copolymers having either tert-butyl acrylate or benzyl acrylate outer blocks. Outer-block molecular weight was targeted by the mole ratio of monomer (acrylate) to the PLLA chloride initiating sites. The actual incorporation of acrylate into the triblock copolymer was lower than the molar feed ratio as the copolymer became increasingly less soluble upon conversion of acrylate in all cases. [Copyright &y& Elsevier] |
| Copyright of Polymer is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 17716385 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Synthesis and characterization of A–B–A triblock copolymers derived from chloro-telechelic poly(l-lactide): combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP) – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Messman%2C+Jamie+M%2E%22">Messman, Jamie M.</searchLink><i> messmanjm@ornl.gov</i><br /><searchLink fieldCode="AR" term="%22Scheuer%2C+Adam+D%2E%22">Scheuer, Adam D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Storey%2C+Robson+F%2E%22">Storey, Robson F.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymer%22">Polymer</searchLink>. May2005, Vol. 46 Issue 11, p3628-3638. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Block+copolymers%22">Block copolymers</searchLink><br /><searchLink fieldCode="DE" term="%22Copolymers%22">Copolymers</searchLink><br /><searchLink fieldCode="DE" term="%22Acrylates%22">Acrylates</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Ring-opening polymerization (ROP) of l-lactide was combined with atom transfer radical polymerization (ATRP) to produce well-defined linear block copolymers. Poly(l-lactide) (PLLA) was synthesized via ROP using ethylene glycol as an initiator and stannous octoate as a catalyst. The isolated hydroxy-telechelic PLLA was reacted with thionyl chloride and pyridine in toluene to afford chloro-telechelic PLLA (Cl-PLLA-Cl). The latter was employed as a macroinitiator in the synthesis of A–B–A triblock copolymers having either tert-butyl acrylate or benzyl acrylate outer blocks. Outer-block molecular weight was targeted by the mole ratio of monomer (acrylate) to the PLLA chloride initiating sites. The actual incorporation of acrylate into the triblock copolymer was lower than the molar feed ratio as the copolymer became increasingly less soluble upon conversion of acrylate in all cases. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymer is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.polymer.2005.03.023 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 3628 Subjects: – SubjectFull: Polymerization Type: general – SubjectFull: Block copolymers Type: general – SubjectFull: Copolymers Type: general – SubjectFull: Acrylates Type: general – SubjectFull: Polymers Type: general Titles: – TitleFull: Synthesis and characterization of A–B–A triblock copolymers derived from chloro-telechelic poly(l-lactide): combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP) Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Messman, Jamie M. – PersonEntity: Name: NameFull: Scheuer, Adam D. – PersonEntity: Name: NameFull: Storey, Robson F. IsPartOfRelationships: – BibEntity: Dates: – D: 11 M: 05 Text: May2005 Type: published Y: 2005 Identifiers: – Type: issn-print Value: 00323861 Numbering: – Type: volume Value: 46 – Type: issue Value: 11 Titles: – TitleFull: Polymer Type: main |
| ResultId | 1 |
