ICCAS OpenIR
Influence of ethanol addition on the modification of montmorillonite by hexadecyl trimethylammonium bromide
Feng, Xiyan2; Hu, Guangjun2; Meng, Xiangfu2; Ding, Yanfen; Zhang, Shimin; Yang, Mingshu1
2009-08-01
Source PublicationAPPLIED CLAY SCIENCE
ISSN0169-1317
Volume45Issue:4Pages:239-243
AbstractAlthough modification of montmorillonite (MMT) with cationic surfactants has been studied extensively, the influence of the reaction medium has not been investigated systematically. The present paper reports the influence of ethanol on the modification of MMT using hexadecyl trimethylammonium bromide (HDTMA-Br). Wide angle X-ray diffraction (WAXD) and thermogravimetric analysis (TGA) were used to characterize the organically modified montmorillonite (OMMT). The addition of ethanol had little influence on the cation exchange, but affected greatly on the intercalation of the surfactant ion pairs into the interlayer space when HDTMA exceed the cation exchange capacity (CEC) of MMT. The increase of the ethanol/water ratio increased the critical micelle concentration (CMC) of HDTMA-Br solution. The intercalation of HDTMA ion pairs proceeded when the HDTMA concentration was above the CMC. It was confirmed that both of basal spacing and p organic fraction followed sigmoid functions for OMMT prepared with excess HDTMA-Br amount and various surfactant concentrations under different CMC. (C) 2009 Elsevier B.V. All rights reserved.
KeywordMontmorillonite Hexadecyl Trimethylammonium Bromide Ethanol Critical Micelle Concentration Organoclay
DOI10.1016/j.clay.2009.06.016
Indexed BySCI
Language英语
WOS IDWOS:000268798300009
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65984
Collection中国科学院化学研究所
Corresponding AuthorYang, Mingshu
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci,CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Feng, Xiyan,Hu, Guangjun,Meng, Xiangfu,et al. Influence of ethanol addition on the modification of montmorillonite by hexadecyl trimethylammonium bromide[J]. APPLIED CLAY SCIENCE,2009,45(4):239-243.
APA Feng, Xiyan,Hu, Guangjun,Meng, Xiangfu,Ding, Yanfen,Zhang, Shimin,&Yang, Mingshu.(2009).Influence of ethanol addition on the modification of montmorillonite by hexadecyl trimethylammonium bromide.APPLIED CLAY SCIENCE,45(4),239-243.
MLA Feng, Xiyan,et al."Influence of ethanol addition on the modification of montmorillonite by hexadecyl trimethylammonium bromide".APPLIED CLAY SCIENCE 45.4(2009):239-243.
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