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Modeling the temperature variation of intrinsic viscosity using a temperature dependent scaling exponent

机译:使用温度依赖性缩放指数建模固有粘度的温度变化

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Intrinsic Viscosity measurements are usually analyzed using the empirical Mark-Howink-Sakurada equation, which gives a power-law dependence of the intrinsic viscosity to the molecular weight of the polymer. Variation of the scaling exponent, "a", with temperature is only poorly understood necessitating individual measurements at each temperature for every polymer/solvent system. The temperature dependence of "a" is shown to fall on a single universal curve under appropriate rescaling of the temperature of the solution. A method to obtain "a" from the static exponent is also described.
机译:通常使用经验标志 - 致悬挂式佐仓方程分析了本征粘度测量,这给出了基本粘度对聚合物的分子量的幂律依赖性。缩放指数的变化“a”,具有温度才能理解需要在每种聚合物/溶剂系统的每个温度下单独测量。 “A”的温度依赖性在适当的溶液的适当重新分配下,“a”的温度依赖性落在单个普通曲线上。还描述了从静态指数获得“A”的方法。

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