聚（-二乙基丙烯酰胺）周围有序水合壳层对浊点转变不敏感。
Less-Ordered Hydration Shell around Poly(,-diethylacrylamide) Is Insensitive to the Clouding Transition.
机构信息
MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
出版信息
J Phys Chem B. 2021 Nov 4;125(43):12104-12109. doi: 10.1021/acs.jpcb.1c07966. Epub 2021 Oct 20.
Raman multivariate curve resolution (Raman-MCR) is applied to examine how the hydration shell around poly(,-diethylacrylamide) (PDEAM) changes upon heating, in comparison with poly(-isopropylacrylamide) (PNIPAM), both of which undergo a clouding transition near room temperature. We report that PDEAM possesses a less-ordered and smaller hydration shell than PNIPAM. Furthermore, the PDEAM hydration-shell structure is insensitive to the occurrence of clouding, indicating the coil-globule transition and aggregation of multiple chains can be achieved without the hydration-shell structural transformation.
拉曼多元曲线分辨（Raman-MCR）用于研究聚（-二乙基丙烯酰胺）（PDEAM）在加热时如何改变其周围的水合壳，与在室温附近经历浊点转变的聚（-异丙基丙烯酰胺）（PNIPAM）进行对比。我们报告 PDEAM 具有比 PNIPAM 更少有序和更小的水合壳。此外，PDEAM 水合壳结构对浊点的发生不敏感，表明无需水合壳结构转变即可实现链的卷曲-球转变和聚集。
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