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Citation: WANG Chunguang, YU Li, ZHANG Peilong, PANG Lifei, JIA Shouhua. Synthesis and Property Determination of Disilane Surfactant[J]. Chinese Journal of Applied Chemistry, ;2012, 29(10): 1130-1137. doi: 10.3724/SP.J.1095.2012.00516 shu

Synthesis and Property Determination of Disilane Surfactant

1.
College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China

Corresponding author: JIA Shouhua,
Received Date: 23 November 2011
Available Online: 21 February 2012

A novel organic silicon surfactant,polyether modified disilane,was prepared via a two-step reaction.The hydrogen-containing disilane was first prepared by(CH₃)₃SiCl and(CH₃)₂HSiCl based on Wurtz coupling method using sodium as the reductive coupling agent and xylene as the dissolvant,and the obtained product was characterized by IR,UV and GC.The optimum experiment conditions of the synthesis were as follows:n((CH₃)₃SiCl):n((CH₃)₂HSiCl)=1.2:1,the concentration of reactants with 1.8 mol/L,15-crown-5 dosage with 2% of the reaction materials,the reaction temperature and time were 80℃ and 11 h,respectively.The polyether modified disilane surfactant was then synthesized via hydrosilation of the obtained hydrogen-containing disilane and methoxy-terminated polyether polyols using Karstedt Pt as catalysts,the experiment conditions of the synthesis were as follows:the reaction temperature was 95℃ and the reaction time was 4 h.Experimental results showed that the critical micelle concentration(CMC) was 0.9 g/L and the surface tension was 22.49 mN/m.The hydrolytic stability of product was good under pH=6.94 and pH=4.12 conditions.
- organosilicone surfactant,
- hydrogen-containing disilane,
- polyether,
- hydrolytic stability
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