Identification of 2,3-dimethyl-2,3-diisobutyl succinonitrile in laser printer
Identification of 2,3-dimethyl-2,3-diisobutyl succinonitrile in laser printer
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DOI：
10.1002/rcm.3386
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发表时间：
2008-01-01
影响因子：
2
通讯作者：
Kotzias, Dimitrios
中科院分区：
文献类型：
--
作者：
Barrero-Moreno, Josefa M.;Tirendi, Salvatore;Kotzias, Dimitrios
2，3-二甲基-2，3-二异丁基丁二腈被确定为激光打印机在打印过程中排放的主要挥发性有机化合物（>90%）。实验是在一个30米（3）的大环境室中进行的，打印机被放置在那里，并模拟“真实的办公室设置”条件。在打印机附近的Tenax TA吸附剂盒上采集空气样本，并通过热解吸气相色谱/质谱法（TDGC/MS）进行进一步分析。该化合物的结构已被确定，并在本研究中提出。通过核磁共振（NMR）、傅里叶变换红外（FTIR）光谱和液相色谱/串联质谱（LC/MS/MS）获得的其他数据支持拟定结构（未报告CAS编号）为2，3-二甲基-2，3-二异丁基丁二腈。它是2，2 '-偶氮双（2，4-二甲基戊腈）热分解的副产物，2，2'-偶氮双（2，4-二甲基戊腈）是一种市售的自由基聚合引发剂，用于调色剂制造期间的聚合过程中。本文用顶空GC/MS法对15种黑白白色及彩色打印机用墨粉进行了研究。其中六种含有2，3-二甲基-2，3-二异丁基丁二腈，在相应的加工纸中也检测到。版权所有（C）2008约翰威利父子有限公司
2,3-Dimethyl-2,3-diisobutyl succinonitrile was identified as the main volatile organic compound (>90%) emitted from laser printers during the printing process. Experiments were carried out in a large environmental chamber of 30 m(3), where the printers were placed and working simulating 'real office setting' conditions. Air samples were taken on Tenax TA adsorbent cartridges in the vicinity of the printers and further analyzed by thermal desorption gas chromatography/mass spectrometry (TDGC/MS). The structure of the compound has been determined and is presented in this study. Additional data obtained by nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, and liquid chromatography/tandem mass spectrometry (LC/MS/MS) support the proposed structure, with no reported CAS number, as 2,3-dimethyl-2,3-diisobutyl succinonitrile. It is a byproduct of the thermal decomposition of 2,2 '-azobis(2,4-dimethyl valeronitrile), a commercially available free radical polymerization initiator used in polymerization processes during the manufacture of the toners. By means of head-space GC/MS, 15 toners used in black & white and colour printers have been investigated. Six of them contained 2,3-dimethyl-2,3-diisobutyl succinonitrile, which has also been detected in the respective processed paper. Copyright (C) 2008 John Wiley & Sons, Ltd.