The electrophoresis of poly(N-isopropylacrylamide) microgel particles
The electrophoresis of poly(N-isopropylacrylamide) microgel particles
复制标题
聚(N-异丙基丙烯酰胺)微凝胶颗粒的电泳
DOI：
10.1007/s003960050040
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发表时间：
2000
影响因子：
2.4
通讯作者：
N. Marston
中科院分区：
文献类型：
--
作者：
M. Rasmusson;B. Vincent;N. Marston
含有羧基的聚（n -异丙基丙烯酰胺）微凝胶的电泳迁移率被测量为离子强度的函数，在0.1到100 mM NaCl之间，在2545°C的温度范围内。所获得的迁移率数据已经用不同的模型进行了评估，包括多孔球、软板和软球模型，以及由Henry开发并后来由O'Brien和White改进的硬球模型。“多孔”或“软”行为在较低温度下是明显的，而在较高温度下，没有一个模型可以完全解释观察到的行为。在较高温度下的差异可以部分归因于“软”模型中忽略了松弛效应。
The electrophoretic mobility of a poly(N-isopropylacrylamide) microgel containing carboxylic groups has been measured as a function of the ionic strength, between 0.1 and 100 mM NaCl, over the temperature range 2545∘C. The mobility data obtained have been evaluated using different models, including the porous-sphere, the soft-plate and the soft-sphere models as well as the hard-sphere model developed by Henry and later refined by O'Brien and White. The “porous” or “soft” behaviour is evident at lower temperatures, whereas at higher temperatures none of the models can fully explain the observed behaviour. It is suggested that the discrepancies at higher temperatures can be partly ascribed to the neglect of the relaxation effect in the “soft” models.