Research in supramolecular science makes a great progress last years and will involve probably in its orbit the chemistry of crude oil additives. The main feature of supramolecules is ability to self-assembly after mechanical destruction because of weak bonds between the supramolecular monomer units. Coulomb and Van der Waals interactions as well as hydrogen bonds can form labile compounds that are able to change themselves under applied forces and then recreate their structure. That is the main difference from strong covalent bonds whose cleavage is irreversible. So, supramolecules are self-repairable structures and this property is attractive for developing the Drag Reducing Agents (DRAs) which can recover their activity after high shear stress of centrifugal pump. Conventional DRAs cannot. They radically lose drag reducing activity while passing through main line pump. For another thing weak bonds may dissociate under ambient conditions and that is why supramolecular solution may contain particles of different length this very moment. Furthermore, low molecular weight particles may act as pour point depressant (PPD) while particles of high molecular weight may act as DRA. In most preferable case the supramolecules will be the universal additive for crude oil. But in far as PPDs are consumed while conglomerating with paraffin the supramolecular concentration should be the value of about several hundred parts-per-million.
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