It is also called acetate butyrate cellulose. It is a mixed ester of cellulose . Cellulose has many hydroxyl groups in the molecule, but the hydroxyl groups -OH are reacted with acetate CH3COOH and butyric acid CH3CH2CH2COOH or their anhydrides to convert them into a mixed ester of cellulose acetyl ester -OCOCH3 and butyryl ester -OCOCH2CH2CH3 in a certain ratio, which is acetate butyrate. Acetate butyrate with 37% butyryl and 13% acetyl by weight is commonly produced. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
酢酸酪酸繊維素ともいう。セルロースの混合エステルのことで,セルロースは分子内に多くの水酸基をもつが,その水酸基-OHを酢酸CH3COOHおよび酪酸CH3CH2CH2COOHまたはその無水物と反応させて,セルロースのアセチルエステル-OCOCH3とブチリルエステル-OCOCH2CH2CH3のある割合の混合エステルに変えたのが,酢酸酪酸エステルである。37重量%ブチリル‐13重量%アセチルの酢酸酪酸エステルが一般に製造されている。
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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