演題概要

ポスター発表

第1日　6月22日（水）　　P会場（501，502，503）

1P-41　　PDF

MALDI-MSによるポリブタジエンの加硫反応機構の解析

(¹名工大院工・ ²住友ゴム工業)
^o稲葉主斗¹・ 大谷肇¹・ 海野祐馬²・ 吉谷美緒²・ 北浦健大²・ 山田宏明²

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.