| 摘要 |
PURPOSE:To obtain a method for automatically measuring extracted part of polymer is solvent extraction which can perform measurement of an amount extracted of polymer is solvent extraction easily, rapidly and automatically based on difference in a chemical structure or a molecular structure. CONSTITUTION:After an extracting vessel 2 which has sampled a constant amount of polymer is transferred to a solvent separation process (A) and solvent is separated, it is transferred to a heating reflux process (B) where the vessel is heated under reflux to have the polymer dissolved into solvent. Then after deposit is deposited by maintaining in a constant temperature in a constant temperature maintaining process (C), the deposit is filtered in a filtration process (D) to have a predetermined amount of filtered solution sampled in a filtered solution sampling vessel 16. This vessel 16 is transferred to a heating and drying process (E) to have the solvent vaporized and dried, further the remaining solvent is removed in a low-pressure drying process (F), and then a weight of the filtered solution sampling vessel 16 is weighed to obtain a weight of extracted part and also to calculate a ratio of the extracted part in the polymer. |
