Application of ¦Á-Cyano-3-methoxy-4-hydroxycinnamic Acid in Analysis of Polymer by Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry

KeyWord:¦Á-cyano-3-methoxy-4-hydroxycinnamic acid  matrix  laser desorption/ ionization mass spectrometry  polymer

Abstract:

      ¦Á-Cyano-3-methoxy-4-hydroxycinnamic acid£¨CFA£©was applied in analysis of the synthesized polymer A and B by matrix-assisted laser desorption/ionization time of flight mass spectrometry£¨MALDI-TOF-MS£©.The results showed that CFA can exhibit an excellent matrix function,compared with the common matrices£¨e.g.DHB,HCCA,SA and DIT£© in terms of resolution and signal-to-noise of the obtained mass spectra.The information of the relative molecular mass,molecular weight distribution and constitutional repeating unit of polymer A and B were obtained,which will be instructive to the optimization of polymer reaction conditions and the speculation of reaction mechanism.