Polyethylene glycol
= Polyethylene glycol
= PEG
{c}
{synonym}
<Polyethylene glycol> is a water-soluble <polymer> with repeating ethylene oxide units. Nonadsorbing dissolved chains can cause a <depletion force> between larger <colloids>. Chains attached to a surface can instead give <steric stabilization>. Which effect occurs depends on surface affinity, chain size and <concentration>.