线性聚乙烯标准参考物质1475的特性。VII. 聚乙烯溶液的示差折光率。
The Characterization of Linear Polyethylene SRM 1475. VII. Differential Refractive Index of Polyethylene Solutions.
作者信息
Wagner Herman L
机构信息
Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
出版信息
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):151-155. doi: 10.6028/jres.076A.020.
Abstract
The value of for polyethylene in 1-chloronaphthalene at 135 °C, required for the determination of molecular weight by light scattering, was found to vary with molecular weight. Similar changes were found in 1,2,4-trichlorobenzene, the gel permeation chromatograph solvent. The absolute value of decreases by about 2 percent as the polymer molecular weight increases from 12,000 to 110,000.
摘要
通过光散射法测定聚乙烯分子量时，在135℃下于1-氯萘中所需的 值被发现会随分子量而变化。在凝胶渗透色谱溶剂1,2,4-三氯苯中也发现了类似的变化。当聚合物分子量从12,000增加到110,000时， 值的绝对值下降约2%。
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