- 著者
- Hiroaki Sato Yoko Ishii Hikaru Momose Takafumi Sato Kanae Teramoto
- 出版者
- The Mass Spectrometry Society of Japan
- 雑誌
- Mass Spectrometry (ISSN:2187137X)
- 巻号頁・発行日
- vol.2, no.1, pp.A0014, 2013-02-01 (Released:2013-01-31)
- 参考文献数
- 22
- 被引用文献数
- 10 13
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.