ICCAS OpenIR
Effect of hydrophobically modified polymer on salt-induced structural transition in microemulsions
Ma, XJ; Wang, XY; Wang, JB; Guo, DH; Wang, YL; Ye, JP; Wang, ZP; Yan, HK
2004-07-06
Source PublicationLANGMUIR
ISSN0743-7463
Volume20Issue:14Pages:5679-5682
AbstractThe phase boundaries of the middle-phase microemulsion for NaCl/SDS/H2O/1-heptane/1-pentanol systems in the absence of polymer and in the presence of unmodified poly(acrylamide) (PAM) and hydrophobically modified poly(acrylamide) (HMPAM) have been determined at varying salt concentrations. These three middle-phase microemulsions (with HMPAM, with PAM, and without polymer) were studied using interfacial tension measurement, steady-state fluorescence, and time-resolved fluorescence quenching. Compared to the polymer-free system and the system with PAM, the addition of HMPAM significantly enlarges the range of the salt concentrations for the formation of the middle-phase microemulison and causes both the excess oil and aqueous phases to increase in volume at the expense of the middle-phase microemulsion. For the middle-phase microemulsion with HMPAM, the interfacial tensions of the microemulsion phase with the excess oil phase and with the excess aqueous phase are all ultralow and exhibit higher values than those with PAM and without polymer. At the same salt concentration, the apparent surfactant aggregation number in the middle-phase microemulsion with HMPAM has the smallest value among these three systems. All results indicate that the strong interaction of surfactant with hydrophobically modified polymer has a large effect on the formation and properties of the middle-phase microemulsion.
DOI10.1021/la0359373
Indexed BySCI
Language英语
WOS IDWOS:000222429200010
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81942
Collection中国科学院化学研究所
Corresponding AuthorWang, YL
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Petro China, Res Inst Petr Explorat & Dev, Oilfield Chem Dept, Beijing 100083, Peoples R China
3.Harbin Engn Univ, Coll Chem, Harbin 150001, Peoples R China
Recommended Citation
GB/T 7714
Ma, XJ,Wang, XY,Wang, JB,et al. Effect of hydrophobically modified polymer on salt-induced structural transition in microemulsions[J]. LANGMUIR,2004,20(14):5679-5682.
APA Ma, XJ.,Wang, XY.,Wang, JB.,Guo, DH.,Wang, YL.,...&Yan, HK.(2004).Effect of hydrophobically modified polymer on salt-induced structural transition in microemulsions.LANGMUIR,20(14),5679-5682.
MLA Ma, XJ,et al."Effect of hydrophobically modified polymer on salt-induced structural transition in microemulsions".LANGMUIR 20.14(2004):5679-5682.
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