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Kricheldorf et al., 2005 - Google Patents

Copolymerization of ε‐caprolactone and glycolide—A comparison of bismuth (III) hexanoate and tin (II) octanoate as initiators

Kricheldorf et al., 2005

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Document ID
6511393152053958944
Author
Kricheldorf H
Hachmann‐Thiessen H
Publication year
Publication venue
Journal of Polymer Science Part A: Polymer Chemistry

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Abstract ε‐Caprolactone and glycolide were copolymerized in bulk either with tin (II) 2‐ ethylhexanoate (SnOct2) or with bismuth (III) n‐hexanoate (BiHex3) as initiators and with tetra (ethylene glycol) as a coinitiator. The temperature was varied from 100 to 160° C. The …
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    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
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    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
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    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/84—Boron, aluminium, gallium, indium, thallium, rare-earth metals, or compounds thereof
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    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
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