Measuring LCSTs by novel temperature gradient methods: Evidence for intermolecular interactions in mixed polymer solutions
Measuring LCSTs by novel temperature gradient methods: Evidence for intermolecular interactions in mixed polymer solutions
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DOI：
10.1021/ja029691k
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发表时间：
2003-03-12
影响因子：
15
通讯作者：
Cremer, PS
中科院分区：
文献类型：
--
作者：
Mao, HB;Li, CM;Cremer, PS
在这里，我们描述了当热响应性聚合物在水溶液中经历相变时的分子相互作用的研究。通过使用我们最近报告的线性温度梯度设置来研究温度对化学过程的影响，我们展示了以极高的精度探测较低临界溶液温度(LCST)行为的能力。这种方法还提供了一种简单方便的方法来测定含有一种以上聚合物的溶液的LCST，并实时跟踪聚合物混合物的混浊动力学。
Herein we describe studies of molecular interactions in thermoresponsive polymers as they go through phase transitions in aqueous solutions. By using our recently reported linear temperature gradient setup for studying the effects of temperature on chemical processes, we demonstrate the ability to probe lower critical solution temperature (LCST) behavior with excellent precision. This method also provides a simple and convenient way to assay the LCST of solutions containing more than one polymer and follow the clouding kinetics of polymer mixtures in real time.