Sökning: WFRF:(Finne Wistrand Anna) >
Industrial utilizat...
Industrial utilization of tin-initiated resorbable polymers : synthesis on a large scale with a low amount of initiator residue
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- Stjerndahl, Anna (författare)
- KTH,Fiber- och polymerteknologi
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- Wistrand, Anna Finne (författare)
- KTH,Fiber- och polymerteknologi
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- Albertsson, Ann Christine (författare)
- KTH,Fiber- och polymerteknologi
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(creator_code:org_t)
- 2007-02-23
- 2007
- Engelska.
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Ingår i: Biomacromolecules. - : American Chemical Society (ACS). - 1525-7797 .- 1526-4602. ; 8:3, s. 937-940
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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visa färre...
Abstract
Ämnesord
Stäng
- This article presents the successful large-batch synthesis of a resorbable polymer with a minimal amount of residual tin. Ring-opening polymerization of ε-caprolactone was performed in toluene, with a tin (IV) alkoxide as the initiator. A number of parameters were varied in order to study the polymerization with respect to the purity of solvent, batch size, and the residual amount of tin in the polymers. The synthesis of ε-caprolactone in undistilled toluene with 1-di-n-butyl-1-stanna-2,5-dioxacyclopentane as the initiator was successfully performed in batches of 5, 20, and 50 g with no differences in the final conversion, molecular weight, or molecular-weight distribution. The residual amount of tin was significantly reduced from over 1000 to 23 ppm. This study examines the industrial utility of the materials regarding the size and purity of the synthesis.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Nyckelord
- Initiators (chemical)
- Molecular weight distribution
- Polycaprolactone
- Ring opening polymerization
- Solvents
- Synthesis (chemical)
- Tin
- Toluene
- Polymer chemistry
- Polymerkemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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