聚乙二醇水溶液中的结构和分子间相互作用。
Structure and Intermolecular Interactions in Aqueous Solutions of Polyethylene Glycol.
机构信息
State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China.
Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, 1121 Budapest, Hungary.
出版信息
Molecules. 2022 Apr 15;27(8):2573. doi: 10.3390/molecules27082573.
Aqueous solutions of polyethylene glycol are studied by small-angle neutron scattering over a broad range of polymer molecular masses and concentrations. The scattering data were modeled by a Gaussian chain form factor combined with random phase approximation, which provided good fits over the whole studied concentration range. The results showed that polyethylene glycol in the molecular mass range 0.4-20 kDa in water at physiological temperature T = 37 °C behaves like a random coil in nearly theta solvent conditions. The obtained results serve as a reference for the description of complex mixtures with PEG used in various applications.
通过小角中子散射研究了聚乙二醇的水溶液在广泛的聚合物分子量和浓度范围内的情况。散射数据采用高斯链形态因子与随机相位近似相结合的方法进行建模，在整个研究浓度范围内得到了很好的拟合。结果表明，在生理温度 T = 37°C 的水中，分子量在 0.4-20 kDa 范围内的聚乙二醇在近乎θ溶剂条件下表现为无规线团。所得到的结果可作为描述在各种应用中使用 PEG 的复杂混合物的参考。
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