isobtylene-isoprene rubber

Japanese: isobtylene-isoprene rubber(英語表記)isobtyleneisoprenerubber
isobtylene-isoprene rubber

…A synthetic rubber obtained by cationic copolymerization of isobutylene and a small amount of isoprene at an extremely low temperature of -100°C using aluminum chloride as a catalyst. It is also called isobutylene-isoprene rubber (abbreviated as IIR). The isoprene content in butyl rubber is 0.6 to 3 mol%, which introduces carbon-carbon double bonds into the rubber molecular chain and enables sulfur vulcanization. …

*Some of the terminology that refers to "isobtylene-isoprene rubber" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…イソブチレンと少量のイソプレンを,塩化アルミニウムを触媒として-100℃というきわめて低い温度でカチオン共重合させて得られる合成ゴム。イソブチレン・イソプレンゴムisobtylene‐isoprene rubber(略称IIR)ともいう。ブチルゴム中のイソプレン含有率は0.6~3モル%で,これによってゴム分子鎖内に炭素‐炭素二重結合を導入し硫黄加硫を可能にしている。…

※「isobtylene-isoprene rubber」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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