Hyperbranched Polyesters Terminated with Alkyl Chains of Different Length at the Air/Water Interface and on Solid Substrates

2014 ◽  
Vol 47 (15) ◽  
pp. 5256-5268 ◽  
Author(s):  
Anna Brzozowska ◽  
Jan Paczesny ◽  
Paweł Parzuchowski ◽  
Monika Kusznerczuk ◽  
Kostyantyn Nikiforov ◽  
...  
Keyword(s):  
Water Interface ◽  
Alkyl Chains ◽  
Hyperbranched Polyesters ◽  
Solid Substrates ◽  
Air Water Interface

The synthesis of dendrimers bearing alkyl chains and their behavior at air-water interface

1997 ◽  
Vol 38 (3) ◽  
pp. 257-264 ◽  
Author(s):  
Zhishan Bo ◽  
Xi Zhang ◽  
Xiaobin Yi ◽  
Meiling Yang ◽  
Jiacong Shen ◽  
...  
Keyword(s):  
Water Interface ◽  
Alkyl Chains ◽  
Air Water Interface

scholarly journals Self-Assembly Properties of Amphiphilic Iron(III) Spin Crossover Complexes in Water and at the Air–Water Interface

2018 ◽  
Vol 4 (4) ◽  
pp. 49 ◽  
Author(s):  
Paulo N. Martinho ◽  
Irina A. Kühne ◽  
Brendan Gildea ◽  
George McKerr ◽  
Barry O’Hagan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Self Assembly ◽  
Spin Crossover ◽  
Water Soluble ◽  
Water Interface ◽  
Nanoparticle Formation ◽  
Alkyl Chains ◽  
Transmission Electron ◽  
Air Water Interface ◽  
Magnetic Profile

The assembly properties of three known spin crossover iron(III) complexes 1–3, at the air–water interface, are reported. All three complexes are amphiphiles, each bearing a pair of Cn alkyl chains on the polyamino Schiff base sal2trien ligand (n = 6, 12, or 18). Complex 1 is water-soluble but complexes 2 and 3 form Langmuir films, and attempts were made to transfer the film of the C18 complex 3 to a glass surface. The nature of the assembly of more concentrated solutions of 3 in water was investigated by light scattering, cryo-SEM (scanning electron microscopy), and TEM (transmission electron microscopy), all of which indicated nanoparticle formation. Lyophilization of the assembly of complex 3 in water yielded a powder with a markedly different magnetic profile from the powder recovered from the initial synthesis, notably, the spin crossover was almost completely quenched, and the thermal behavior was predominantly low spin, suggesting that nanoparticle formation traps the system in one spin state.

Study by Infrared Spectroscopy of Ultrathin Films of Behenic Acid Methyl Ester on Solid Substrates and at the Air/Water Interface

2002 ◽  
Vol 106 (8) ◽  
pp. 1968-1976 ◽  
Author(s):  
Isabelle Pelletier ◽  
Hélène Bourque ◽  
Thierry Buffeteau ◽  
Daniel Blaudez ◽  
Bernard Desbat ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Methyl Ester ◽  
Ultrathin Films ◽  
Acid Methyl Ester ◽  
Behenic Acid ◽  
Water Interface ◽  
Acid Methyl ◽  
Solid Substrates ◽  
Air Water Interface
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