Hydrophobic chains join the France-based method of raw materials used in compounds containing spacer group, and already contains two polar groups, by adding two hydrophobic hydrocarbon chains can be.

• 疏水链基加入法方法所采用的原料化合物中含有联接基团，并且已含有两个极性基团，加入两条碳氢疏水链即可。