| 摘要 |
<p>A surfactant has the formula (R1-X)nZ, where R1 is an aliphatic group comprising a C10-C25 principal straight chain bonded at a terminal carbon atom thereof to X, and comprising at least one C1-C6 side chain. X is a charbed head group, Z is a counterion, and n is an integer which ensures that the surfactant is charge neutral.</p> |
