浩瀚气相色谱仪测定对苯二甲酰氯中的杂质GC7990

Terephthaloyl chloride (TPC) is a polyethylene terephthalate terephthalamide (Kevlar 1414) and polysulfone amide monomer, which is composed of terephthalic acid (TPA) by the reaction of an acyl halide taken. The type and content of impurities and contaminants TPC, TPC synthesis and purification methods of raw materials situation regarding TPA. The main raw material is the corresponding acid chloride of acid impurities, depending on TPA synthesis routes, mainly chloride (BC), methyl chloride (PTC), phthaloyl chloride (PC) and isophthalic acid chloride (IPC) and the like. In addition, the synthesis of TPC, incomplete reaction or other impurities generated by the hydrolysis of acid-chloride (TPMC) and TPA, and the synthesis of hydrogen chloride generated, and so on. The presence of a single chloride molecule chain will be closed, not a high molecular weight polymer, and the polymer chain structure of heterogeneous experience influence. Therefore, the establishment of the TPC method for the determination of impurities of their synthesis, purification and stably preparing a high molecular weight polymer is important.
Tengzhou City Technology Co., Ltd. Xiangying analysis by gas chromatography method with GC7990 terephthaloyl chloride impurities, with satisfactory results.
 对苯二甲酰氯(TPC)是聚对苯二甲酰对苯二胺(芳纶1414)和聚砜酰胺的单体,它是由对苯二酸(TPA)经酰卤化反应制取的。TPC 中杂质的种类和含量与原料TPA 中杂质、TPC 合成情况及纯化方法有关。主要是相应原料酸中杂质酸的酰氯,根据TPA 合成路线的不同,主要有苯甲酰氯(BC)、对甲基苯甲酰氯(PTC)、邻苯二甲酰氯(PC)和间苯二甲酰氯(IPC)等。另外,合成TPC 时,反应不完全或水解产生的对苯二甲酸单酰氯(TPMC)和TPA、氯化氢及合成中产生的其它杂质等等。单酰氯的存在会封闭分子链,得不到高分子量的聚合物,而异构体会影响高聚物链结构。因此,建立TPC 中杂质测定方法对其合成、纯化和稳定地制取高分子量聚合物具有重要意义。
滕州市翔鹰分析技术有限公司用GC7990气相色谱法测定对苯二甲酰氯中的杂质，结果满意。
  XiangyingGC7990plus features:
1 excellent performance, competitive price, to meet the customers' choice
2 multi industry adaptability
3 outstanding performance in all kinds of harsh environment
INJ
A variety of sampling ports can be equipped with: packed column inlet, shunt / non shunt capillary inlet,
Hydrogen flame ionization detector (FID)
Maximum use temperature: 400
The minimum detection limit: -12 = 2.5*10 g/s (n-C16)
Linear range: 107 (+ 10%)
 
XiangyingGC7990plus特点：

1. 卓越的性能，具有竞争力的价格，满足广大客户的选择
2. 多行业适应性
   3. 在各种苛刻环境下均表现出色

进样口
多种进样口可配：填充柱进样口、分流/不分流毛细管进样口、
氢火焰离子化检测器（FID） 
***高使用温度：400℃
***小检出限：≤2.5*10 -12 g/s(n-C16)
线性范围：107（±10%）