Bark Suberin as a Renewable Source of Long‐Chain ω‐Hydroxyalkanoic Acids

Abstract Summary : Polycondensations of cis ‐9,10‐epoxy‐18‐hydroxyoctadecanoic acid, isolated from birch outer bark, were performed at 75 °C in toluene as solvent and at 85 °C in bulk using immobilized Candida antarctica lipase B as catalyst. The polycondensation performed in toluene in presence of...

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Bibliographic Details
Published in:Macromolecular Symposia
Main Authors: Nilsson, Helena, Olsson, Ann, Lindström, Mikael, Iversen, Tommy
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2008
Subjects:
Online Access:http://dx.doi.org/10.1002/masy.200851215
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fmasy.200851215
https://onlinelibrary.wiley.com/doi/pdf/10.1002/masy.200851215
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Summary:Abstract Summary : Polycondensations of cis ‐9,10‐epoxy‐18‐hydroxyoctadecanoic acid, isolated from birch outer bark, were performed at 75 °C in toluene as solvent and at 85 °C in bulk using immobilized Candida antarctica lipase B as catalyst. The polycondensation performed in toluene in presence of molecular sieves gave a polyester with DP 50 after 24 h. The same DP was obtained at much shorter reaction time (3 h) by bulk polymerization in an open vial without any drying agent present.