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在本项研究中,采用比浊法分析了紫胶在热聚合过程中缩聚物的沉淀的变化。实验数据证实了饱和界限定律,进而,用积分法进行了一种低聚合度的聚合物的分级,并确立了 W_X(沉淀物的重量级分)与 V(加入沉淀剂的体积)间的关系。此外,测定了这些级分的特性粘度。这些交错的实验数据已为大量的统计试验所确认。
In this study, the turbidimetric method was used to analyze the changes in the precipitation of polycondensates during the thermal polymerization of shellac. The experimental data confirm the law of saturation bound. Furthermore, the integration of a polymer with a low degree of polymerization by integration is established and the relationship between W_X (weight fraction of precipitate) and V (volume of precipitating agent added) is established . In addition, the inherent viscosities of these fractions were determined. These staggered experimental data have been confirmed by a large number of statistical tests.