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

Poster Presentations

Day 1, June 22（Wed.）　　Room P (501, 502 and 503)

1P-41　　PDF

Vulcanization Reactions of Polybutadiene Studied by Matrix Assisted Laser Desorption / Ionization Mass Spectrometry

(1NITech, 2Sumitomo Rubber Industries, Ltd.)
oKazuto Inaba1, Hajime Ohtani1, Yuma Unno2, Mio Yoshitani2, Takehiro Kitaura2, Hiroaki Yamada2

The vulcanization reactions of polybutadiene (PB) were studied by MALDI-MS using DCTB and AgTFA as matrix and cationizing reagents, respectively. In the MALDI mass spectra of the model samples of valcanized intermediates prepared with low-molecular weight butadiene rubber (L-BR), peaks of the components containing one or two sulfur atoms bonded to L-BR chains were observed in addition to those of original L-BR. Based on the difference in the observed mass spectra of the intermediate samples obtained under various conditions, the vulcanization mechanisms of BR were discussed with considering the data observed by various such as Py-GC/MS, NMR and SEC.