Interaction of Plasma Proteins with Tri-quaternary Ammonium Salt Cationic Surfactant Studied by QCM-D

2015 ◽  
Vol 33 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Man Xi ◽  
Baoyan Zhang
Keyword(s):  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Plasma Proteins

Synthesis of biodegradable lauric acid ester quaternary ammonium salt cationic surfactant and its utilization as calico softener

2008 ◽  
Vol 62 (19) ◽  
pp. 3450-3452 ◽  
Author(s):  
Zongcheng Miao ◽  
Jianzhou Yang ◽  
Lei Wang ◽  
Yong Liu ◽  
Long Zhang ◽  
...  
Keyword(s):  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Lauric Acid ◽  
Quaternary Ammonium ◽  
Acid Ester ◽  
Quaternary Ammonium Salt

Preparation of Novel Gemini Quaternary Ammonium Salt Cationic Surfactant

2012 ◽  
Vol 174-177 ◽  
pp. 1433-1436 ◽  
Author(s):  
Zong Cheng Miao ◽  
Fang Wang ◽  
Deng Deng ◽  
Yong Ming Zhang ◽  
Xiao Ping Huo ◽  
...  
Keyword(s):  
Surface Tension ◽  
Ammonium Chloride ◽  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Foam Stability ◽  
High Surface ◽  
Amine Hydrochloride ◽  
Gemini Cationic Surfactant

In order to obtain some novel cationic surfactants with high surface activity, n-octadecyldimethylamine and epichlorohydrin were used to synthesize 2-hydroxy-1, 3-dis (chloride octadecyl dimethyl ammonium) propane, which was a kind of gemini quaternary ammonium salt. N-octadecyldimethylamine and epichlorohydrin were used to prepare active epoxy intermediate glycidyloctadecyldimethyl ammonium chlorided, and then glycidyloctadecyldimethyl ammonium chlorided was reacted with octadecyldimethyl amine hydrochloride to synthesize the gemini cationic surfactant. FTIR and 1H NMR were used to represent structure of the gemini cationic surfactant. The interface characteristics were studied in detail. The critical micellar concentration (CMC) was determined by surface tension test to obtain the values of CMC and surface tension at CMC. The foam ability and foam stability of the gemini cationic surfactant were also discussed through contrast octadecyltrimethyl ammonium chloride and cetyltrimethyl ammonium chloride.

Synthesis and Application Research of op-10/ Cationic Surfactant Composite Asphalt Emulsifier

2013 ◽  
Vol 364 ◽  
pp. 664-668 ◽  
Author(s):  
Su Rong Jin ◽  
Ke Zhang ◽  
Jin Xing Pang ◽  
Shan Shan Song
Keyword(s):  
Surface Activity ◽  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Application Research ◽  
Synthesis Conditions ◽  
Emulsifying Property

In this paper, the non-ionic intermediate was prepared by op-10 and epoxy chloropropane; the quaternary ammonium salt intermediate was prepared by triethylamine and epoxy chloropropane; the op-10/cationic surfactant composite asphalt emulsifier was synthesized by reacting with non-ionic intermediate, quaternary ammonium salt intermediate and N-octadecyl propylene diamine. The effect of synthesis conditions and the prescription on the emulsifying property, surface activity and using performance of emulsifier was studied, a new way for the preparation of the composite asphalt emulsifier was explored.

Synthesis of Quaternary Ammonium Salt Cationic Surfactant with Long-Chain Alkyl and Epoxy Groups

2012 ◽  
Vol 554-556 ◽  
pp. 864-867 ◽  
Author(s):  
Zong Cheng Miao ◽  
Fang Wang ◽  
Deng Deng ◽  
Lei Wang ◽  
Jian Zhou Yang
Keyword(s):  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Traditional Method ◽  
Raw Materials ◽  
Reaction Conditions ◽  
Important Intermediate ◽  
Epoxy Groups ◽  
Long Chain

The quaternary ammonium salt cationic surfactant with long-chain alkyl and epoxy groups is very important intermediate product to synthesis novel functional surfactants. In this paper, a kind of quaternary ammonium salt cationic surfactant with long-chain alkyl and epoxy groups was synthesized by traditional method with epichlorohydrin and N-octadecyldimethylamine as raw materials. During the synthesis, the best reaction conditions have been obtained, that the reaction temperature is 35 °C, the reaction time is 4 h and the best mol ratio of epichlorohydrin to timethylamine is 5:1. In addition, the synthesized intermediate with long-chain alkyl and epoxy groups plays a very important roles in the development of cationic surfactant.

Application of Diester Gemini Quaternary Ammonium Salt as Paper Softening Agent

2014 ◽  
Vol 1004-1005 ◽  
pp. 696-698
Author(s):  
Xiao Ping Huo ◽  
Jian Wei Ren ◽  
Zong Cheng Miao
Keyword(s):  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Raw Materials ◽  
Important Application ◽  
Important Paper ◽  
Softening Effect ◽  
Environment Friendly ◽  
Quaternary Ammonium Cationic Surfactants

Quaternary ammonium cationic surfactants have very important application in the papermaking industry, which is a series of important paper softening agents. In order to obtain an environment-friendly paper softening agent, a novel diester gemini quaternary ammonium salt cationic surfactant has been prepared. Dodecyldimethyl amine, epichlorohydrin and adipic acid were used as raw materials to synthesize the surfactant, and Fourier transform infrared spectroscopy was used to characterize the groups in reaction product. Moreover, the softening effect of the diester gemini quaternary ammonium salt cationic surfactant was studied in detail.

scholarly journals Synthesis of Branch Fluorinated Cationic Surfactant and Surface Properties

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Hongke Wu ◽  
Jiaqi Zhong ◽  
Haimin Shen ◽  
Hongxin Shi
Keyword(s):  
Surface Properties ◽  
Surface Activity ◽  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Effect Of Temperature ◽  
Surface Activities ◽  
H Nmr

A novel fluorinated quaternary ammonium salt cationic surfactant N,N,N-trimethyl-2-[[4-[[3,4,4,4-tetrafluoro-2-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-1,3-bis(tri-fluoromethyl)-1-buten-1-yl]oxy]-benzoyl]amino]-iodide (FQAS) was synthesized successfully, and its structure was characterized by FTIR,1H-NMR,19F-NMR, and MS. The surface activities of FQAS and the effect of temperature, electrolyte, and combination with hydrocarbon surfactant were investigated. The results showed that FQAS exhibited excellent surface activity and combination with hydrocarbon surfactant.

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