Application of High-Resolution MALDI-TOFMS with a Spiral Ion Trajectory for the Structural Characterization of Free Radical Polymerized Methacrylate Ester Copolymers

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概要

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• The structural characterization of copolymers by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) remains a challenging task, since their random comonomer distribution creates very complicated mass spectra. In this study, a high-resolution TOF mass spectrometer with a spiral ion trajectory was applied to the structural and compositional characterization of free radical copolymerized poly(methyl methacrylate-co-tert-butyl methacrylate), poly(MMA-co-tBMA)s in ethyl lactate acting as a chain transfer agent. Virtually complete peak assignments of the isobaric components within the poly(MMA-co-tBMA)s served to identify the end-group combinations and copolymer compositions of individual copolymer components, allowing the distributions of comonomer compositions and six types of end-group combinations to be evaluated.

著者

• Sato Hiroaki

  Research Institute For Environmental Management Technology National Institute Of Advanced Industrial

• Sato Takafumi

  MS Business Unit, JEOL Ltd.

• Ishii Yoko

  Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST)

• Momose Hikaru

  Corporate Research Laboratories, Mitsubishi Rayon Co., Ltd.

• Teramoto Kanae

  Advanced Technology Department, JEOL Ltd.

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