"' Triton X-100 "'( " n " ) is a nonionic surfactant that has a hydrophilic polyethylene oxide chain ( on average it has 9.5 ethylene oxide units ) and an aromatic hydrocarbon lipophilic or hydrophobic group.
12.
Polyacrylic acid is a weak anionic polyelectrolyte, whose degree of ionisation is dependent on solution pH . In its non-ionised form at low pHs, PAA may associate with various non-ionic polymers ( such as polyethylene oxide, poly-N-vinyl pyrrolidone, polyacrylamide and some cellulose ethers ) and form hydrogen-bonded interpolymer complexes.