Preparation and Evaluation of a Novel Cationic Amphiphilic Lignin Derivative with High Surface Activity
Preparation and Evaluation of a Novel Cationic Amphiphilic Lignin Derivative with High Surface Activity
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DOI：
10.15376/biores.8.4.6111-6120
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发表时间：
2013-10
期刊：
影响因子：
1.5
通讯作者：
Z. Liu;L. Zhao;S.-J. Cao;Shuo Wang;Pinzhen Li
中科院分区：
文献类型：
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作者：
Z. Liu;L. Zhao;S.-J. Cao;Shuo Wang;Pinzhen Li
以硫酸盐木质素为原料，通过Mannich和酮胺缩合反应，引入脱氢松香基作为亲油基团和二乙烯三胺基团作为亲水基团，制备了一种新型的具有高表面活性的阳离子两亲性木质素衍生物。溶解度，表面张力，亲水亲油平衡（HLB）值，发泡性和zeta电位被用来评估的基本物理化学性质的阳离子两亲性木质素衍生物。实验表明，阳离子两亲性木质素衍生物的溶解度为2.10 wt%，临界胶束浓度为5.0 g·L-1，浓度为5.0 g·L-1时表面张力为29.85 mN·m-1，HLB值为12，在pH 2.0的水溶液中，初始泡沫体积为11.1 mL，静置5 min后为8.0 mL。
A novel cationic amphiphilic lignin derivative with high surface activity was prepared from kraft lignin via the introduction of dehydroabietyl groups as lipophilic groups and diethylenetriamine groups as hydrophilic groups by the Mannich and ketone-amine condensation reactions. Solubility, surface tension, hydrophilic-lipophilic balance (HLB) values, foamability, and zeta potential were used to evaluate the basic physico-chemical properties of the cationic amphiphilic lignin derivative. The experiments show that the solubility of the cationic amphiphilic lignin derivative is 2.10 wt%, the critical micelle concentration is 5.0 g•L-1, the surface tension is 29.85 mN•m-1 at a concentration of 5.0 g•L-1, the HLB value is 12, and the foam volume is 11.1 mL initially and 8.0 mL after standing for 5 min in an aqueous solution at pH 2.0.