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苯撑二羟系合成苯撑硅橡胶的主要原料,苯撑二羟的纯度直接影响苯撑硅橡胶聚合时链的增长和结构性能。由于苯撑二羟是高沸点硅醇,不能用色谱直接进行分析,我们采用双三甲基硅乙酰胺(简称BSA试剂)和苯撑二羟进行硅醚化反应生成弱极性的低沸物,然后进行色谱定量分析。为了了解该产品所含杂质的结构组成有利于促进产品质量的提高,我们将柱分离后的各种杂质分别与BSA试剂反应后,由MAT-111色-质联用仪进行试验,根
The main raw material of phenylenedihydroxyphenylacetylene rubber, the purity of phenylenedihydroxybenzene has a direct influence on the chain growth and the structural properties of the phenylenglysilicone rubber during polymerization. Since phenylenedihydroxyl is a high-boiling silanol, it can not be directly analyzed by chromatography. We use bistrimethylsilyl acetamide (BSA reagent) and phenylenedihydroxyl to undergo the silyl etherification reaction to produce the low-polarity weak boilers , Followed by chromatographic quantitative analysis. In order to understand the structure of impurities contained in the product is conducive to promoting the improvement of product quality, we will separate the column after the various impurities were reacted with BSA reagent, MAT-111 color-mass spectrometer to test the root