The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lectures

Award Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Panel Discussion

Luncheon Seminars (Day1, Day2, Day3)

Corporate Program

Oral Sessions

Day 1, June 22（Wed.）　18:10-18:30　Room B (409 and 410)

1B-O1-1810　　PDF

Classifying Molecular Structure of Star-polymer using Ion-Mobility Mass Spectrometry

(1Canon, 2Göttingen Univ.)
oShinsuke Kokubo1, Peng Wentao2, Philipp Vana2

In this study we applied ion mobility mass spectroscopy(IM-MS), which enables to measure molecular weight and spacious size simultaneously, to classify isobaric star-polymers originally synthesized polyethylene glycol with multi-arm. Experimentally, spacious size is quantitatively observable as a collision cross section (CCS) which corresponds to average projected area of sample ion. CCS was theoretically evaluated using structure via molecular-dynamics simulation. Comparing experimentally and theoretically obtained CCS, we speculated conformation and dimension of polymer ion quantitatively.
IM-MS simultaneously provides molecular weight and spacious size of synthetic polymer, which is a crucial method for classifying star-polymer.