Using the hydrolysis of anhydrides to control gel properties and homogeneity in pH-triggered gelation
Using the hydrolysis of anhydrides to control gel properties and homogeneity in pH-triggered gelation
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DOI：
10.1039/c5ra22253b
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发表时间：
2015-01-01
期刊：
影响因子：
3.9
通讯作者：
Adams, Dave J.
中科院分区：
文献类型：
--
作者：
Draper, Emily R.;Mears, Laura L. E.;Adams, Dave J.
低分子量胶凝剂的水溶液的pH可以通过将许多酸酐水解成相应的酸来调节。水解的速率和因此的pH变化的速率可用于控制凝胶形成的速率。该速率不影响低分子量胶凝剂的初级组装，但确实影响所得凝胶的机械性质以及凝胶的均匀性和再现性。通过流变学和动态纳米压痕法对材料的力学性能进行了比较。
The pH of an aqueous solution of a low molecular weight gelator can be adjusted through the hydrolysis of a number of anhydrides to the corresponding acids. The rate of hydrolysis and hence of pH change can be used to control the rate of gel formation. This rate does not affect the primary assembly of the low molecular weight gelator, but does affect the mechanical properties of the resulting gels, as well as the homogeneity and reproducibility of the gels. The mechanical properties are compared by both rheology and dynamic nanoindentation.