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Hydration and dielectric properties of aqueous solutions of protonated diallylmethylammonium polymer: transition from monomer to polymer
International Journal of Polymer Analysis and Characterization ( IF 1.7 ) Pub Date : 2020-07-17 , DOI: 10.1080/1023666x.2020.1801292
Larisa Timofeeva 1 , Andrey Lyashchenko 2 , Irina Balakaeva 2 , Alexandr Lileev 2 , Yulia Simonova 1
Affiliation  

Abstract The high-frequency dielectric relaxation of aqueous solutions of protonated diallylammonium polyelectrolyte, namely poly(diallylmethylammonium trifluoroacetate) has been studied at the maximum water dispersion frequencies, 7.5–25 GHz, and temperatures of 288, 298, and 308 K. Dielectric relaxation parameters have been calculated and compared with similar characteristics of aqueous solutions of monomer, diallylmethylammonium trifluoroacetate, and pyrrolidinium trifluoroacetate salt simulated structure of pyrrolidinium polymer link. It has been concluded that although the monomer features hydrophobic hydration, its polymer exhibits hydrophilic hydration properties. This change is related to conformation of hydrophilic-hydrophobic polycations in aqueous solutions and the change in the structure of polymer links.

中文翻译:

质子化二烯丙基甲基铵聚合物水溶液的水合和介电性能:从单体到聚合物的转变

摘要 研究了质子化二烯丙基铵聚电解质聚(二烯丙基甲基三氟乙酸铵)水溶液在最大水分散频率 7.5–25 GHz 和温度 288、298 和 308 K 下的高频介电弛豫参数。 介电弛豫参数已经计算并与类似特征的单体水溶液、二烯丙基甲基三氟乙酸铵和吡咯烷三氟乙酸盐模拟吡咯烷鎓聚合物链接的结构进行了比较。已经得出结论,尽管单体具有疏水性水合特性,但其聚合物表现出亲水性水化特性。这种变化与水溶液中亲水-疏水聚阳离子的构象和聚合物连接结构的变化有关。
更新日期:2020-07-17
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