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Molecular Aggregation Behavior in the Mixture of Amphiphilic Poly(amidoamine)-Based Dendrimer and Sodium Dodecyl Sulfate
Yang Hui1,2; Hu Min1,2; Chen Hui-Bo1; Yang Shi-Wei2; Wang Jin-Ben1
2010-03-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
Volume26Issue:3Pages:626-630
AbstractIn this paper, the interaction between a dendrimer, composed of G1 (generation 1.0) poly (amidoamine) (PAMAM) and branched with poly(propylene oxide) (PPO)-poly(ethylene oxide) (PEO). and sodium dodecyl sulfate (SDS) was investigated by turbidity titration, dynamic light scattering (DLS), transmission electron microscopy (TEM). and atomic force microscopy (AFM). Interestingly, at low concentrations of added SDS far from the critical micelle concentration (cmc), the system with the dendrimer at 1% (mass fraction) exhibited higher turbidity, indicating that the aggregates grew larger and this was confirmed by DLS, TEM, and AFM. It is mainly due to the strong interaction between the dendrimer and the SDS molecules, as well as the formation of a dendrimer-SDS complex. With a SDS concentration of more than 0.1 mmol . L-1 (about 1% of the cmc), the variation of turbidity value was not obvious mainly because the aggregate size tended to be constant observed from DLS, TEM, and AFM. As the concentration increased further (0.25 and 0.5 mol . L-1). self-aggregation of the SDS molecules or aggregation of the monomolecular dendrimer that interacted with the multimolecular SDS occurred in the system.
KeywordAggregation Behavior Dendrimer Turbidity Interaction Sodium Dodecyl Sulfate
DOI10.3866/PKU.WHXB20100327
Indexed BySCI
Language英语
WOS IDWOS:000275806300016
PublisherPEKING UNIV PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69246
Collection中国科学院化学研究所
Corresponding AuthorWang Jin-Ben
Affiliation1.Chinese Acad Sci, Inst Chem, Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China
2.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
Recommended Citation
GB/T 7714
Yang Hui,Hu Min,Chen Hui-Bo,et al. Molecular Aggregation Behavior in the Mixture of Amphiphilic Poly(amidoamine)-Based Dendrimer and Sodium Dodecyl Sulfate[J]. ACTA PHYSICO-CHIMICA SINICA,2010,26(3):626-630.
APA Yang Hui,Hu Min,Chen Hui-Bo,Yang Shi-Wei,&Wang Jin-Ben.(2010).Molecular Aggregation Behavior in the Mixture of Amphiphilic Poly(amidoamine)-Based Dendrimer and Sodium Dodecyl Sulfate.ACTA PHYSICO-CHIMICA SINICA,26(3),626-630.
MLA Yang Hui,et al."Molecular Aggregation Behavior in the Mixture of Amphiphilic Poly(amidoamine)-Based Dendrimer and Sodium Dodecyl Sulfate".ACTA PHYSICO-CHIMICA SINICA 26.3(2010):626-630.
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