Moldable and Humidity-Responsive Self-Healable Complex from Lignosulfonate and Cationic Polyelectrolyte
Moldable and Humidity-Responsive Self-Healable Complex from Lignosulfonate and Cationic Polyelectrolyte
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DOI：
10.1021/acssuschemeng.8b03361
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发表时间：
2018-09
影响因子：
8.4
通讯作者：
Kazunori Ushimaru;Tomotake Morita;T. Fukuoka
中科院分区：
文献类型：
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作者：
Kazunori Ushimaru;Tomotake Morita;T. Fukuoka
我们利用木质素磺酸盐与各种阳离子聚电解质之间的离子相互作用，以木质素磺酸盐为原料开发了一种可模塑的自愈材料。制备了三种不同阳离子聚电解质的木质素磺酸盐络合物。木质素磺酸钠(L-SO3Na)和聚二烯丙基二甲基氯化铵(PDADMACl)的复合体在拉伸试验中的机械韧性(>；3MJ/m~3)被认为是一种很有前途的可模塑材料。对L-SO3Na/PDADMACl络合物的力学性能进行了表征，考察了组成、PDADMACl的相对分子质量和相对湿度的影响。我们的研究结果如下：(I)在PDADMACl中加入适量的木质素磺酸盐提高了复合材料的韧性(最高从1.8 MJ/m~3提高到3.6MJ/m~3)；(Ii)使用较高相对分子质量(>；200,000)的PDADMACl提高了复合材料的力学性能；(Iii)增加了相对湿度，通过水的吸收软化了复合材料。
We have developed a moldable and self-healable material from lignosulfonate by taking advantage of the ionic interactions between lignosulfonate and various cationic polyelectrolytes. Three lignosulfonate complexes with different cationic polyelectrolytes were prepared. The complex of sodium lignosulfonate (L-SO3Na) and poly(diallyldimethylammonium chloride) (PDADMACl) was deemed a promising moldable material based on its mechanical toughness in tensile tests (>3 MJ/m3). The mechanical properties of the L-SO3Na/PDADMACl complex were further characterized with regard to the effects of composition, the molecular weight of PDADMACl, and relative humidity. Our findings were as follows: (i) the addition of adequate amounts of lignosulfonate to PDADMACl improved the toughness of the complex (from 1.8 to 3.6 MJ/m3 at maximum), (ii) using higher-molecular-weight (>200,000) PDADMACl enhanced the mechanical properties of the complex, and (iii) increasing the relative humidity softened the complex through water abso...