二维红外相关光谱的研究和应用  

Application study of generalized two-dimensional infrared correlation spectroscopy

作　　者：李丹[1] 苏晓声[1] 孟运东[1] 张艳华[1] 王小兵[1] 张驰[2] 

机构地区：[1]广东生益科技股份有限公司国家电子电路基材工程技术研究中心,广东东莞523808 [2]西南科技大学,四川绵阳621010

出　　处：《印制电路信息》2013年第4期54-60,共7页Printed Circuit Information

摘　　要：对一维红外光谱存在的问题进行了分析,对二维红外光谱的概念的提出和发展、原理及实验方法、性质及解释规则、相关特点、分析设备和软件、样品及数据处理要求等进行了综述,并采用红外光谱结合二维相关分析技术,对添加不同固化促进剂的环氧树脂配方进行了快速鉴别研究。研究结果表明,二者在一维红外光谱图上没有差别,但是它们的二维红外相关谱图却存在明显的差异。在4000cm-1-2500cm-1和1600cm-1-730cm-1两个区域的同步和异步光谱进行研究后发现,配方B有甲基自动峰的出现,而配方A则无;因此,二维相关红外光谱可以用于揭示树脂聚合反应过程中的高分子链段内不同基团的变化规律和相互作用,并用于一维红外谱图无差别的树脂的鉴别。A practicable and efficient method for identification of different epoxy formations with different curing accelerator was conducted by Fourier transform infrared spectroscopy（FTIR） combined with two- dimensional correlation spectroscopy（2D） technique. The two resin formulations tested were similar to each other in one-dimensional IR spectra but quite different in 2D-FTIR spectra. An investigation on 2D FTIR synchronous and asynchronous spectra disclosed that in the range of 4000 cm-1-2500cm-1 and 1600 cm-1-730cm-1, methyl auto-peak appears in the synchronous spectrum of formulation B, while not in the formulation A; The results proved that 2D correlation spectra could enhance the resolution of infrared spectra and increase the capability of identification, which make it a powerful and new approach to identifying different resins.

关 键 词：二维红外相关光谱 同步相关谱 异步相关谱 聚合反应 固化促进剂 环氧树脂 鉴别 

分 类 号：TN41[电子电信—微电子学与固体电子学]