Pépite | Lignines modifiées comme additif retardateur de flamme pour matériaux polymères
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![Figure 9. Comparison of hydroxyl groups content from different lignin with the Argyropoulos method [47]](https://thumb-eu.123doks.com/thumbv2/123doknet/3722332.111169/33.918.267.651.542.964/figure-comparison-hydroxyl-groups-content-different-lignin-argyropoulos.webp)
![Figure 22. FTIR spectra of the manchurian ash lignin treated at different temperatures [129]](https://thumb-eu.123doks.com/thumbv2/123doknet/3722332.111169/60.918.301.624.651.990/figure-ftir-spectra-manchurian-lignin-treated-different-temperatures.webp)
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![Figure 23. Type of carbons obtained by analysis of 13 C CPMAS NMR [131]](https://thumb-eu.123doks.com/thumbv2/123doknet/3722332.111169/61.918.197.727.616.937/figure-type-carbons-obtained-analysis-c-cpmas-nmr.webp)
![Table 16. Hydroxyl groups quantification and monomers ratios in LIG’s structure OH content [mmol/g] Monomers ratio [%]](https://thumb-eu.123doks.com/thumbv2/123doknet/3722332.111169/110.918.102.818.469.993/table-hydroxyl-groups-quantification-monomers-structure-content-monomers.webp)
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