Dipartimento di Patologia Animale, Profilassi ed Igiene degli Alimenti, Università di Pisa, Viale delle Piagge 2, 56127 Pisa, Italy.
Ecotoxicol Environ Saf. 2011 May;74(4):748-53. doi: 10.1016/j.ecoenv.2010.10.032. Epub 2010 Nov 18.
N-alkyl-N-methylmorpholinium and N-alkyl substituted 1,4-diazabicyclo[2.2.2]octane (DABCO) based ionic liquids (ILs), N-alkyl-DABCO, bearing short alkyl chains are characterised by a low toxicity to Vibrio fischeri, although toxicity significantly increases on increasing the alkyl chain length. Alkyl chain length affects also biodegradability in the 28 days tests; the higher level of biodegradation was found in both the series in the case of the ethyl (C2) derivatives. In the case of N-ethyl DABCO based IL, although biodegradability is still around 40%, and consequently this IL cannot be classified as "readily biodegradable", this value is similar to the more biodegradable functionalized imidazolium based ILs.
N-烷基-N-甲基吗啉鎓和 N-烷基取代的 1,4-二氮杂双环[2.2.2]辛烷(DABCO)基离子液体(ILs)，N-烷基-DABCO，具有短烷基链，对发光弧菌(Vibrio fischeri)的毒性较低，尽管随着烷基链长度的增加，毒性显著增加。烷基链长度也会影响 28 天测试中的生物降解性；在乙基(C2)衍生物的情况下，这两个系列的生物降解性水平都更高。在基于 N-乙基 DABCO 的 IL 的情况下，尽管生物降解性仍在 40%左右，因此该 IL 不能归类为“易生物降解”，但这个值与更易生物降解的功能化咪唑鎓基 ILs 相似。
