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Syntheses and properties of ethoxylated double-tail trisiloxane surfactants containing a propanetrioxy spacer

2011; Wiley; Volume: 25; Issue: 5 Linguagem: Inglês

10.1002/aoc.1775

1099-0739

Zhongli Peng, Jianfeng Huang, Fu‐Rong Chen, Qinghua Ye, Qiaoyu Li,

Environmental Chemistry and Analysis

Applied Organometallic ChemistryVolume 25, Issue 5 p. 383-389 Full Paper Syntheses and properties of ethoxylated double-tail trisiloxane surfactants containing a propanetrioxy spacer Zhongli Peng, Corresponding Author Zhongli Peng zsupzl@126.com Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaDepartment of Chemical Engineering, Huizhou University, Huizhou 516007, China.Search for more papers by this authorJianfeng Huang, Jianfeng Huang Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorFurong Chen, Furong Chen Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorQinghua Ye, Qinghua Ye Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorQiaoyu Li, Qiaoyu Li Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this author Zhongli Peng, Corresponding Author Zhongli Peng zsupzl@126.com Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaDepartment of Chemical Engineering, Huizhou University, Huizhou 516007, China.Search for more papers by this authorJianfeng Huang, Jianfeng Huang Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorFurong Chen, Furong Chen Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorQinghua Ye, Qinghua Ye Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this authorQiaoyu Li, Qiaoyu Li Department of Chemical Engineering, Huizhou University, Huizhou 516007, ChinaSearch for more papers by this author First published: 29 March 2011 https://doi.org/10.1002/aoc.1775Citations: 8Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract A new type of ethoxylated double-tail trisiloxane surfactants containing a propanetrioxy spacer of the general formula ROCH2CH(OR)CH2O(CH2CH2O)xCH3 [R = Me3SiOSiMe(CH2)3OSiMe3, x = 8.4, 12.9, 22] has been synthesized. Their structures were characterized by 1H-NMR, 13C-NMR and 29Si-NMR spectroscopy. The critical micelle concentration (CMC) values of these double-tail trisiloxane surfactants were at the level of 10−5 mol l−1, and the surface tension values of their aqueous solutions at CMC were in the range of 21-24.9 mN m−1. Only the double-tail trisiloxane surfactant with average ethoxy units of 8.4 (1P) possesseda good spreading ability (SA) value. Its SA values of aqueous solutions (5.0 × 10−3 mol l−1) on parafilm and Ficus microcarpa leaf surfaces were more than 15 (within 10 min) and 13 (within 3 min), respectively. The trisiloxane surfactant 1P was also found to have the strongest hydrolysis resistant ability among all of the double-tail trisiloxane surfactants prepared. Its aqueous solutions were stable for 130 days in an acidic environment (pH 4.0) and 59 days in an alkaline environment (pH 10.0) with surface tension values less than 23 mN m−1. It is suggested that this surfactant can be used as a wetting agent or spreading agent in certain extreme pH environments. Copyright © 2011 John Wiley & Sons, Ltd. Citing Literature Volume25, Issue5May 2011Pages 383-389 RelatedInformation