One of the haloalkenes (alkenes with halogen atoms). Its correct name is 2-chloro-1,3-butadiene. It is a volatile colorless liquid. There is an industrial method for synthesizing it from butadiene. In the butadiene process, butadiene is chlorinated at 300°C, then isomerized with a copper salt catalyst to obtain 3,4-dichloro-1-butene, which is then dehydrochlorinated with an aqueous solution of sodium hydroxide to produce it. It polymerizes easily with light, heat, and oxygen. The polymer obtained by emulsion polymerization is heat-resistant, chemical-resistant, aging-resistant, and flame-retardant, and is widely used as a synthetic rubber known as neoprene, and is also used as a rubber-based adhesive. [Rikuhei Tani [References] | | | | | [Supplementary information] |©Shogakukan "> Chloroprene manufacturing method (butadiene process) Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
ハロアルケン(ハロゲン原子をもつアルケン)の一つ。正しくは2-クロロ-1,3-ブタジエンという。揮発性の無色液体。工業的製法として、ブタジエンから合成する方法がある。ブタジエン法は、ブタジエンを300℃で塩素化したのち銅塩触媒により異性化させて得た3,4-ジクロロ-1-ブテンを、水酸化ナトリウム水溶液で脱塩化水素することにより製造する。 光、熱、酸素により容易に重合する。乳化重合して得た重合体は耐熱性、耐薬品性、耐老化性、難燃性をもち、ネオプレンの商品名で知られる合成ゴムとして広く利用され、またゴム系接着剤としても用いられている。 [谷利陸平] [参照項目] | | | | | [補完資料] |©Shogakukan"> クロロプレンの製法(ブタジエン法) 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
>>: Chloropalladate - Chloropalladium salt (English name) chloropalladate
The longest river in France, flowing west through ...
… [Hiroshi Yuasa]. … *Some of the terminology tha...
Written by Iruman (Iruma) Fukansai Habian, a Japan...
A resort and tourist city in southeastern Florida,...
…The mallow that appears in the Manyoshu is thoug...
It is one of the representative seven-membered ri...
This was a clash with foreign soldiers that occur...
Also known as paranoia or delusional disorder, th...
...the subfamily Cupressaceae, which has fleshy c...
A small shrub of the Caprifoliaceae family (APG c...
The indigenous people of the Terai plains, which s...
...The name comes from the Middle French toaille ...
Mineralogist. Born in Obama, Wakasa Province (Fuk...
1880-1963 A track and field athlete from the Meij...
...A general term for birds of the Icteridae fami...