Hoʻohui ʻia o nā alkyl polyglycoside butyl ethers

ʻO kahi waiwai i makemake pinepine ʻia o nā alkyl polyglycosides i hoʻonui ʻia i ka foamability. Eia naʻe, i nā noi he nui, ua manaʻo maoli ʻia kēia hiʻohiʻona he hemahema. No laila, he hoihoi nō hoʻi i ka hoʻomohala ʻana i nā alkyl polyglycoside derivatives e hoʻohui i ka hana hoʻomaʻemaʻe maikaʻi me kahi ʻano liʻiliʻi e hoʻohuhū. Ma ka noʻonoʻo ʻana i kēia pahuhopu, ua synthesized ka alkyl polyglycoside butyl ether. Ua ʻike ʻia ma ka palapala e hiki ke hoʻopaʻa ʻia nā alkyl glycosides me nā alkyl halides a i ʻole dimethyl sulfate i loko o nā wai wai alkaline.

Ma ka pālākiō ʻoihana, ʻo ka pane ʻana i loko o ka hoʻonā wai he mea pōʻino no ka mea ʻaʻole hiki ke loaʻa nā huahana wai ʻole me ka ʻole o nā hana hana hou. No laila, ua hoʻomohala ʻia kahi kaʻina hana wai ʻole, i hōʻike ʻia ma ke Kiʻi 6. Hoʻokomo mua ʻia ka polyglycoside alkyl i loko o ka reactor me ka nui o ka butyl chloride a hoʻomehana ʻia i 80 ℃. Hoʻomaka ʻia ka hopena ma ka hoʻohui ʻana i ka potassium hydroxide e like me ka catalyst. I ka pau ʻana o ka pane ʻana, hoʻokaʻawale ʻia ka hui ʻana o ka hopena, kānana ʻia ka pahū potassium chloride a hoʻopau ʻia ka butyl chloride. Hoʻokumu ʻia ka huahana me nā alkyl polyglycosides like ʻole a me nā alkyl polyglycoside butyl ethers. Wahi a GC anaana, o ka lakio o ka alkyl monoglycoside, alkyl mono-glycoside monobutyl ether a me alkyl monoglycoside polybutyl ether he 1:3:1.5.

ʻO ke ala o ka pane ʻana no ka etherification o kahi C₁₂Hōʻike ʻia ka polyglycoside alkyl ma ke Kiʻi 7. Ke emi nei ka ʻike monoglycoside mai kahi o 70% a i lalo o 20%. I ka manawa like, piʻi ka waiwai no ka monoether i 50%. ʻOi aku ka nui o ka monobutyl ether, ʻoi aku ka nui o nā polybutyl ethers e hiki ke hana ʻia mai ia mea. Ma hope wale nō o nā hola 24 aia kahi hoʻokumu nui o nā polybutyl ethers. E like me ka mea i manaʻo ʻia, piʻi ka ʻike o nā polyethers me ka hoʻonui ʻana i ka manawa pane. Eia naʻe, ʻaʻole i ʻoi aku ka waiwai o 20%. ʻO ka awelika etherification degere ʻo 1 ~ 3 butyl no ka ʻāpana alkyl glycoside. ʻO ka hopena hopena o C₁₂ʻO ka alkyl glycoside ka mea maikaʻi loa. I ka hihia o N =8 a i ʻole 16 alkyl polyglycoside butyl ether, ua emi nā hopena.

Mai kēia mau hiʻohiʻona ʻekolu, ʻike maopopo ʻia ka loaʻa ʻana o nā derivatives o nā alkyl glycosides.