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Nonionic surfactants containing propylene oxide
Author(s) -
Naylor Carter G.
Publication year - 1986
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02663954
Subject(s) - propylene oxide , pulmonary surfactant , nonionic surfactant , polyvinyl alcohol , phenol , chemistry , wetting , ethylene oxide , alcohol , oxide , chromatography , organic chemistry , materials science , polymer , copolymer , composite material , biochemistry
Physical and surface active properties of ethoxylates are altered by the inclusion of propylene oxide (PO) groups. The location of PO within the ethoxylate (EO) chain can be as important a factor as the relative amounts of PO and EO. The optimum position of the PO was shown to be a single discrete block of PO located in approximately the middle of the ethoxylate chain. The influence of PO on surfactant properties was assessed for several alcohol ethoxylates and nonyl‐phenol ethoxylates. Pour points and gelling tendencies were lowered at the expense of detergency, foaming and wetting power.