论文标题
相关聚合物的热凝胶老化
Aging of Thermoreversible Gel of Associating Polymers
论文作者
论文摘要
我们对两亲聚合物进行了Langevin动力学模拟，其中包含由长长的链节段连接的密切关联贴纸。我们探索了可爱的凝胶的衰老，该凝胶由贴纸的聚集体（簇）交联，并观察到随着衰老的寿命急剧增加。我们发现，观察到的衰老是网络结构重组的结果：随着小簇的分解，交叉链接的数量会随着时间而减少，并且它们的贴纸被大型群集重新吸收，从而通过贴纸之间形成额外的分子内相关性，从而变得更加稳定。
We performed Langevin dynamics simulations of amphiphilic polymers that contain strongly associating stickers connected by long soluble chain segments. We explored the aging of a thermoreversible gel which is crosslinked by aggregates (clusters) of the stickers and observed a dramatic increase of their lifetime with aging. We find that the observed aging is the result of structural reorganization of the network: the number of crosslinks decreases with time as small clusters disintegrate and their stickers are reabsorbed by large clusters that grow and become more stable by forming additional intramolecular associations between their stickers.
