Hoʻohui ʻia o nā alkyl polyglycoside glycerol ethers

Ua lawe ʻia ka synthesis o nā alkyl polyglycoside glycerol ethers e nā ʻano hana like ʻole (Figure2, ma kahi o ka hui ʻana o ka alkyl polyglycoside, ʻo ka alkyl monoglycoside wale nō i hōʻike ʻia ma ke ʻano he educt). ʻO ka etherification o ka polyglycoside alkyl me ka glycerol ma ke ʻano A e hele ana ma lalo o nā kūlana hoʻololi kumu. ʻO ka wehe ʻana o ke apo o kahi epoxide ma ke ʻano B ke hana ʻia ma ke alo o nā mea hoʻoheheʻe kumu. ʻO kahi ʻē aʻe ka hopena me ka glycerol carbonate ma ke ʻano C i hui pū ʻia me ka hoʻopau ʻana o CO.₂ a e hele ana paha ma o ka epoxide ma ke ʻano he pae waena.

Hoʻomaʻamaʻa ʻia ka hui ʻana i ka 200 ℃ ma kahi o 7 mau hola i ka wā e hoʻomau mau ʻia ai ka wai i hana ʻia e hoʻoneʻe i ka equilibrium a hiki i ka ʻaoʻao huahana. E like me ka mea i manaʻo ʻia, ua hoʻokumu ʻia nā alkyl polyglycoside di- a me nā triglycerol eter me ka monoglycerol ether. ʻO kekahi hopena lua, ʻo ia ka condensation ponoʻī o ka glycerol e hana i nā oligoglycerols i hiki ke hana me ka polyglycoside alkyl e like me ka glycerol. ʻO ia mau mea kiʻekiʻe o nā oligomers kiʻekiʻe e makemake nui ʻia no ka mea e hoʻomaikaʻi hou lākou i ka hydrophilicity a no laila no ka laʻana ka hoʻoheheʻe wai o nā huahana. Ma hope o ka etherification, hiki ke hoʻoheheʻe ʻia nā huahana i ka wai a bleached i kahi ʻano ʻike ʻia, no ka laʻana me ka hydrogen peroxide.

Ma lalo o kēia mau ʻano hopena, kūʻokoʻa ka degere o ka etherification o nā huahana i ka lōʻihi o ke kaulahao alkyl o ka polyglycoside alkyl i hoʻohana ʻia. Hōʻike ka Figure 3 i ka pākēneka o nā mea i loko o ka mono-, di- a me ka triglycerol etera i loko o ka hui ʻana o nā huahana maʻemaʻe no nā lōʻihi o ke kaulahao alkyl ʻehā. ʻO ka hopena o ka C₁₂ Hāʻawi ka alkyl polyglycoside i kahi hopena maʻamau. Wahi a kahi chromatogram kinoea, hoʻokumu ʻia nā mono-, di- a me nā triglycerol ethers ma kahi ratio o 3:2:1. ʻO ka huina o ka glycerol ethers ma kahi o 35%.