ICCAS OpenIR
A titration microcalorimeter and the vesicle of mixed surfactants
Bai, GY; Wang, YJ; Wang, JB; Yang, GY; Han, BX; Yan, HK
2000-12-01
Source PublicationSCIENCE IN CHINA SERIES B-CHEMISTRY
ISSN1006-9291
Volume43Issue:6Pages:617-624
AbstractA titration microcalorimeter with the sample cells of 1 mL and 3 mL volume was constructed by combining LKB-2107 ampule microcalorimeter with an improved Thermometric titration microcalorimeter. Its sensitivity and precision were tested with the baseline noise and stability, the measurement of energy equivalent, and the linear relation of electric energy and integral area as the function of voltage (V)-time (t). its accuracy was demonstrated by measuring the dilution enthalpy of a concentrated sucrose solution and the micelle-forming enthalpy of sodium dodecyl sulfate (SDS) in aqueous solution respectively. At the same time, the enthalpy of interaction between SDS and didodecyldimethylammonium bromide (DDAB) was measured by using the titration microcalorimeter, and the phase behavior of SDS-DDAB aqueous mixture was discussed. The microcalorimetric results show that the enthalpy of interaction between SDS and DDAB micelles is -29.53 kJ/mol, the enthalpy of formation of 1:1 SDS-DDAB salt is -125.8 kJ/mol, the vesicle-forming enthalpy of SDS-DDAB is 41.23 kJ/mol, and the enthalpy of phase transition from vesicles to SDS rich micelle is 32.10 kJ/mol.
KeywordTitration Microcalorimeter Surfactant Molecular Self-assemble Vesicle
Indexed BySCI
Language英语
WOS IDWOS:000166664000007
PublisherSCIENCE PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76182
Collection中国科学院化学研究所
Corresponding AuthorYan, HK
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Bai, GY,Wang, YJ,Wang, JB,et al. A titration microcalorimeter and the vesicle of mixed surfactants[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2000,43(6):617-624.
APA Bai, GY,Wang, YJ,Wang, JB,Yang, GY,Han, BX,&Yan, HK.(2000).A titration microcalorimeter and the vesicle of mixed surfactants.SCIENCE IN CHINA SERIES B-CHEMISTRY,43(6),617-624.
MLA Bai, GY,et al."A titration microcalorimeter and the vesicle of mixed surfactants".SCIENCE IN CHINA SERIES B-CHEMISTRY 43.6(2000):617-624.
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