| 摘要 |
The present invention relates to a method for analyzing the degree of branching of poly phenylene sulfide and, more particularly, to a method for analyzing the degree of branching by performing NMR after a solubility for a solvent is improved by partially sulfonating the poly phenylene sulfide and the sulfonated poly phenylene sulfide is dissolved in the solvent. Until now, a production process management is impossible because the analysis of PPS is very difficult and the improvement of the process for improving quality is difficult even though the quality of PPS is reduced due to the unwanted branching in the production process. According to the present invention, the production process of PPS is checked and managed at any time by analyzing the degree of the branching of PPS with a very easy method. A method for manufacturing PPS with high quality is developed. |
