作者：Matthias J. N. Junk, Wen Li, A. Dieter Schlüter, Gerhard Wegner, Hans W. Spiess, Afang Zhang* and ..
关键字：Dendronized polymer, thermoresponsive, phase transition, EPR spectroscopy
论文来源：期刊
具体来源：Angew. Chem. Int. Ed. 2010, 49, 5683-5687
发表时间：2010年
The collapse transition of thermoresponsive dendronized polymers could be characterized on a molecular scale by CW EPR spectroscopy. Above the collapse temperature TC, the aggregation of the complete polymer sample is triggered by dynamic structural inhomogeneities of a few nanometers: While macroscopically a sharp phase transition, this study reveals that the dehydration of the polymer chains proceeds over a temperature interval of at least 30 °C and is a case of a molecularly controlled non-equilibrium state.