Effect of ball milling on lignin polyesterification with ε-caprolactone
| Autor: | Tunga Salthammer, Tasja Schwenke, Stefan Friebel, Maja Kandula |
|---|---|
| Přispěvatelé: | Publica |
| Rok vydání: | 2014 |
| Předmět: |
epsilon-caprolactone
Materials science Size-exclusion chromatography technology industry and agriculture size exclusion chromatography molar mass distribution Biomaterials chemistry.chemical_compound Differential scanning calorimetry chemistry Organic chemistry Molar mass distribution Lignin Reactivity (chemistry) differential scanning calorimetry Solubility Ball mill Caprolactone kraft lignin |
| Zdroj: | Holzforschung. 69:297-302 |
| ISSN: | 1437-434X 0018-3830 |
| DOI: | 10.1515/hf-2014-0053 |
| Popis: | Industrially produced lignins are by-products of the pulp and paper industry and depending on the source and pulping technology they have deviating functional groups, solubility behavior and reactivity. In the present paper, kraft lignin was pretreated by mechanical milling and polyesterified with ε-caprolactone to create hydroxyl groups that are more easily available for further reactions. The products obtained were analysed by size exclusion chromatography (SEC), differential scanning calorimetry (DSC) and functional group determination. The analytical data are presented as a function of reaction time, crosslinking reactions and the amount of ε-caprolactone input. |
| Databáze: | OpenAIRE |
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