Evaluating the Extent of Bio-Polyester Polymerization in Solid Wood by Thermogravimetric Analysis
| Autor: | Warren J. Grigsby, T. Volkmer, Marion Noël |
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| Rok vydání: | 2015 |
| Předmět: |
Thermogravimetric analysis
Chemistry General Chemical Engineering technology industry and agriculture General Chemistry Solid wood Oligomer complex mixtures Polybutylene succinate Polyester chemistry.chemical_compound Polymerization Chemical engineering Polymer chemistry General Materials Science Thermal stability In situ polymerization |
| DOI: | 10.6084/m9.figshare.1422071.v1 |
| Popis: | In this study, the thermogravimetric analysis (TGA) technique has been applied to determine the extent of in situ polymerization achievable in solid wood on treating with bio-polyester oligomers. Low-molecular-weight oligomers of poly(lactic acid) (PLA), poly(glycolic acid) (PGA), poly(butylene succinate) (PBS), and poly(butylene adipate) (PBA) were impregnated and then thermally polymerized within solid wood to enhance the physical properties of wood. TGA revealed a similar degree of oligomer polymerization was achieved either with pure oligomers or within the wood structure. The influence of relatively acidic treatments, such as low-molecular-weight PGA oligomers, was observed to lead to degradation of the hemicellulose wood component. Polymerization of PLA and PGA oligomer treatments which penetrate the wood cell wall gave relatively lower wood thermal stability. Treatment and polymerization of lumen filling PBS and PBA oligomers contributed to increased wood thermal stability. |
| Databáze: | OpenAIRE |
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