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一、前言特别在付里叶变换核磁共振仪在七十年代问世以来,核磁共振(简称 NMR)在有机、高分子的结构分析应用已日益成为不可缺少的手段了。它能够用来确证和解释新的化合物的结构、特别是新的未知化合物而又无法找到已知标准的红外光谱、紫外光谱和质谱的图谱进行对照时,它却能发挥异乎寻常的作用。另方面核磁共振在组分的定量工作中,尤其是共混共聚物的组分定量中无需标准品都能快速、方便地进行定量分析。其次在研究聚合反应的机理、聚合物的序列分布和分子运动的情况都是一个十分有力的工具。
I. INTRODUCTION Since the advent of Fourier transform NMR (NMR) spectroscopy in the 1970s, NMR has become an indispensable means of structural analysis of organic and polymer molecules. It can be used to confirm and explain the structure of new compounds, especially new and unknown compounds, but can not find the known standard infrared spectra, UV spectra and mass spectra of contrast control, it can play an extraordinary role. On the other hand, in the quantitative work of the components, nuclear magnetic resonance can be quickly and conveniently quantitatively analyzed without any standard substance in the quantitative determination of the components of the blended copolymer. Second, it is a very powerful tool to study the mechanism of polymerization, the sequence distribution of polymers and the movement of molecules.