| http://www.w3.org/ns/prov#value | - Preferred nonionic hydrophilic groups include poly(ethylene oxide) chains having a weight of about 100-5000 daltons, or random and/or block copolymers of ethylene oxide and another alkylene oxide such as propylene oxide of similar weight, provided that the ethylene oxide constitutes at least about 50% of the total weight of the chain.
|
