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Glass transition temperature, lignin-based

Chemical Modifications. Unmodified lignin is well known for its poor solubility characteristics and its high glass transition temperature. Methods for improving the solubility (and/or reactivity) of lignin prior to crosslinking in specific network forming systems are summarized in Table I. Such systems may be based on aqueous solutions at pH below or above neutral or on solutions in polar or nonpolar solvents. Typical modifications that enhance the solubility of... [Pg.47]

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