用于双水相体系的聚合物-水溶液的粘度评估。
Evaluation of viscosities of polymer-water solutions used in aqueous two-phase systems.
作者信息
Gündüz U
机构信息
Kimya Mühendisliği Bölümü, Mühendislik ve Mimarlik Fakültesi, Gazi Unviersitesi, Ankara, Turkey.
出版信息
J Chromatogr B Biomed Appl. 1996 May 17;680(1-2):263-6. doi: 10.1016/0378-4347(95)00455-6.
The dynamic viscosities of dilute aqueous poly(ethylene glycol) and dextran, and poly(ethylene glycol)-dextran-water solutions have been measured. The poly(ethylene glycol) and dextran samples had average molecular masses of 8000 Da and 580,000 Da, respectively. To estimate the values of viscosity of poly(ethylene glycol)-dextran-water solutions, a Grunberg like equation has been proposed which takes into account the influence of poly(ethylene glycol) and dextran concentrations. The relative errors vary between 0.76 and 11.64 in absolute value.
已测量了稀聚乙二醇水溶液、葡聚糖水溶液以及聚乙二醇 - 葡聚糖 - 水溶液的动态粘度。聚乙二醇和葡聚糖样品的平均分子量分别为8000道尔顿和580,000道尔顿。为了估算聚乙二醇 - 葡聚糖 - 水溶液的粘度值，提出了一个类似Grunberg方程的公式，该公式考虑了聚乙二醇和葡聚糖浓度的影响。相对误差的绝对值在0.76至11.64之间变化。
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