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A new type of deaggregators, the bolaamphiphilic DeAgrs. Observations of the dependence of deaggregating ability on aggregator concentration and solvent aggregating power
其他题名A new type of deaggregators, the bolaamphiphilic DeAgrs. Observations of the dependence of deaggregating ability on aggregator concentration and solvent aggregating power
Zhou QZ(周其中); Shi JL(史济良); Jiang XK(蒋锡夔); Li ZT(黎占亭)
2002
发表期刊Chin. J. Chem.
ISSN1001-604X
卷号20期号:11页码:1279-1286
摘要Four new amphiphilic molecules, i.e., the bolaamphiphiles ω-trimethylamino n-hexadecanoate deAgr 16), n-dodecanoate (deAgr 12), n-undecanoate (deAgr 11), and n-octanoate (deAgr 8) were synthesized. Their ability as deaggregators to break up the aggregating systems of hexadecyl β-naphthoate (a16) and dodecyl β-naphthoate (A12) in dioxanewater binary solvent systems was investigated in a number of solvent systems and at different A16 and A12 concentrations. The results reveal that this new type of bolaamphiphilic molecules appears to be one of the most efficient deaggregators reported, which, at very low concentrations, can effectively break up the aggregating systems of highly concentrated A16 and A12. It is also found that bolaamphiphiles with longer aliphatic chains possess greater deaggregating ability. However, when the overall concentrations of A16 and A12 are very low but still above their critical aggregating concentration, these bolaamphiphilic molecules lose their deaggregating power and tend to coaggregate with the aggregated A16 or A12 molecules. The quite efficient deaggregating abilityof the longchain bolaamphiphiles (deAgr 16 and deAgr 12), as compared to the short-chain deAgr 8, has been ascribed to their dynamic switch-on/switch-off behavior involving coiled-up and uncoiled conformations of their long aliphatic chains.
学科领域物理有机化学
部门归属中国科学院上海有机化学研究所物理有机化学实验室
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收录类别SCI
语种英语
WOS记录号WOS:000179210800022
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/12622
专题物理有机化学研究室
通讯作者Li ZT(黎占亭)
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GB/T 7714
Zhou QZ,Shi JL,Jiang XK,et al. A new type of deaggregators, the bolaamphiphilic DeAgrs. Observations of the dependence of deaggregating ability on aggregator concentration and solvent aggregating power[J]. Chin. J. Chem.,2002,20(11):1279-1286.
APA 周其中,史济良,蒋锡夔,&黎占亭.(2002).A new type of deaggregators, the bolaamphiphilic DeAgrs. Observations of the dependence of deaggregating ability on aggregator concentration and solvent aggregating power.Chin. J. Chem.,20(11),1279-1286.
MLA 周其中,et al."A new type of deaggregators, the bolaamphiphilic DeAgrs. Observations of the dependence of deaggregating ability on aggregator concentration and solvent aggregating power".Chin. J. Chem. 20.11(2002):1279-1286.
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