Study on the Preparation and Application of Lignin-Derived Polycarboxylic Acids

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Acid-precipitated lignin</td><td class="align_center">LPCAs</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left"><i>M</i><sub>n</sub></td><td class="align_center">2.91 × 10<sup>4</sup></td><td class="align_center">1.23 × 10<sup>4</sup></td></tr><tr><td class="align_left"><i>M</i><sub>w</sub></td><td class="align_center">3.48 × 10<sup>4</sup></td><td class="align_center">1.25 × 10<sup>4</sup></td></tr><tr><td class="align_left"><i>M</i><sub>w</sub>/<i>M</i><sub>n</sub></td><td class="align_center">1.12</td><td class="align_center">1.01</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The GPC characterization result of lignin.</div>

Journal of Chemistry

tab3

Table 3

Table 3: Study on the Preparation and Application of Lignin-Derived Polycarboxylic Acids 