Self-assembly structures of nonionic surfactants at graphite–solution interfaces. 2. Effect of polydispersity and alkyl chain branching

2000 ◽  
Vol 162 (1-3) ◽  
pp. 149-157 ◽  
Author(s):  
Heather N Patrick ◽  
Gregory G Warr
Keyword(s):  
Self Assembly ◽  
Nonionic Surfactants ◽  
Alkyl Chain ◽  
Chain Branching

Aggregation Behaviours of Surface-Active Ionic Liquids 1-Alkyl-3-methylimidazolium Bis(2-ethylhexyl)sulfosuccinate

2016 ◽  
Vol 69 (11) ◽  
pp. 1254 ◽  
Author(s):  
Jiequn Wu ◽  
Tianxiang Yin ◽  
Shaoxiong Shi ◽  
Weiguo Shen
Keyword(s):  
Ionic Liquids ◽  
Self Assembly ◽  
Alkyl Chain ◽  
Systematic Investigation ◽  
Bulk Solution ◽  
Free Energies ◽  
Imidazolium Cation ◽  
Structure Transition ◽  
Surface Active ◽  
Counter Ion Binding

The systematic investigation of the aggregation behaviours of newly synthesised surface-active ionic liquids 1-alkyl-3-methylimidazolium bis(2-ethylhexyl)sulfosuccinate ([Cnmim][AOT], n = 2, 3, 5, 6, 7) by various techniques is reported. The critical aggregation concentrations (CACs) and the standard Gibbs free energies of aggregation () were determined from measurements on conductivity, fluorescence, and surface tension, which suggested a stronger self-assembly ability in the bulk solution for [Cnmim][AOT] surfactants with longer alkyl chain cations. An interesting structure transition driven by the penetration of the imidazolium cation into the aggregate when n > 4 was found by analysis of the variations of the values of CAC, , the degree of counter ion binding (β), and the micropolarity (I1/I3) immediately after the CAC with changing alkyl chain length of the imidazolium cation, which was further confirmed by 1H NMR measurements.

scholarly journals Hydroxylated phosphines as ligands for chalcogenide clusters: self assembly, transformations and stabilization

2017 ◽  
Vol 89 (3) ◽  
pp. 379-392 ◽  
Author(s):  
Maxim N. Sokolov ◽  
Alexander V. Anyushin ◽  
Rita Hernandez-Molina ◽  
Rosa Llusar ◽  
Manuel G. Basallote
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Self Assembly ◽  
Structure Elucidation ◽  
Alkyl Chain ◽  
Chalcogenide Clusters ◽  
Recent Advances

AbstractThis contribution is a documentation of recent advances in the chemistry of chalcogenide polynuclear transition metal complexes coordinated with mono- and di-phosphines functionalized with hydroxo groups. A survey of complexes containing tris(hydroxymethyl)phosphine (THP) is presented. The influence of the alkyl chain in bidentate phosphines, bearing the P–(CH2)x–OH arms, is also analyzed. Finally, isolation and structure elucidation of the complexes with HP(OH)2, P(OH)3, As(OH)3, PhP(OH)2, stabilized by coordination to Ni(0) and Pd(0) centers embedded into chalcogenide clusters, is discussed.

Alkyl‐Chain Branching of Non‐Fullerene Acceptors Flanking Conjugated Side Groups toward Highly Efficient Organic Solar Cells

2021 ◽  
pp. 2102596
Author(s):  
Jianquan Zhang ◽  
Fujin Bai ◽  
Indunil Angunawela ◽  
Xiaoyun Xu ◽  
Siwei Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Alkyl Chain ◽  
Chain Branching ◽  
Highly Efficient

Conformational and aggregation properties of PffBT4T polymers: atomistic insight into the impact of alkyl-chain branching positions

2019 ◽  
Vol 7 (45) ◽  
pp. 14198-14204
Author(s):  
Lu Ning ◽  
Guangchao Han ◽  
Yuanping Yi
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Alkyl Chain ◽  
Temperature Dependent ◽  
Chain Branching ◽  
Alkyl Chains ◽  
Dynamics Simulations ◽  
The Impact ◽  
Insight Into

The impact of the branching positions of alkyl chains on temperature dependent aggregation is rationalized by atomistic molecular dynamics simulations.

scholarly journals Self-assembly of fluorescent diimidazolium salts: tailor properties of the aggregates changing alkyl chain features

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59502-59512 ◽  
Author(s):  
Floriana Billeci ◽  
Francesca D'Anna ◽  
Salvatore Marullo ◽  
Renato Noto
Keyword(s):  
Chain Length ◽  
Self Assembly ◽  
Alkyl Chain ◽  
Alkyl Chain Length

Self assembly of fluorescent diimidazolium NDI salts showed properties of aggregates changing with alkyl chain length, with an odd–even effect.

Self-Assembly Study of Polydisperse Ethylene Oxide-Based Nonionic Surfactants

Langmuir ◽  
2007 ◽  
Vol 23 (3) ◽  
pp. 1014-1017 ◽  
Author(s):  
Miklós Nagy ◽  
László Szöllösi ◽  
Sándor Kéki ◽  
Miklós Zsuga
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Nonionic Surfactants

The influence of alkyl chain branching on the properties of pyrrolidinium-based ionic electrolytes

2020 ◽  
Vol 22 (32) ◽  
pp. 18102-18113 ◽  
Author(s):  
Danah Al-Masri ◽  
Ruhamah Yunis ◽  
Anthony F. Hollenkamp ◽  
Cara M. Doherty ◽  
Jennifer M. Pringle
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Properties ◽  
Alkyl Chain ◽  
Chain Branching ◽  
Plastic Crystals ◽  
New Family

Introduction of a branched alkyl chain onto the widely used pyrrolidinium cation has produced a new family of ionic liquids and plastic crystals with advantageous physical, thermal and electrochemical properties.

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