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Synthesis and Physicochemical Properties of Silicon‐Terminated Octyl/Decyl Polyethylene Oxide as Novel Low‐Foam Penetrating Agents
Author(s) -
Niu Qinghua,
He Zhiqiang,
Fang Yun
Publication year - 2014
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-013-1543-4
Subject(s) - wetting , hydrolysis , polyethylene oxide , chemistry , chemical engineering , polyethylene , oxide , volume (thermodynamics) , silicon , polymer chemistry , organic chemistry , polymer , physics , quantum mechanics , engineering
Low‐foam penetrating agents have been sought after for many industrial applications. In this paper, we were aiming at a low‐foam penetrating agent with excellent wetting ability and hydrolysis resistance, various silicon‐terminated penetrating agents were designed and synthesized starting from a popular commercial penetrating agent, octyl/decyl polyethylene oxide (OEO). All the products present much better low‐foam performances than that of the precursor OEO. Statistically, multi‐OEO substituted products present the best low‐foam performance but a slightly weaker wetting ability. Except octyl/decyl polyethylene oxide trimethyl silicane, all the other five products maintain excellent wetting ability and show good hydrolysis resistance at neutral pH and ambient temperature. Di(octyl/decyl polyethylene oxide) dimethyl silicane is the preferred low‐foam penetrating agent based on its structure–performance and cost, which reduced the foam volume of OEO from 75 to 4 mL (on the 100 mL volume base) at neutral pH and ambient temperature with a similar wetting ability.