Effect of Chain Microstructure and Subphase pH on the Surface Properties and Aggregation Behavior of Amphiphilic Copolymers Based on Fluoroacrylates

2019 ◽  
Vol 816 ◽  
pp. 312-317
Author(s):  
Alexandra O. Grigoreva ◽  
E.Y. Polozov ◽  
S.D. Zaitsev
Keyword(s):  
Acrylic Acid ◽  
Surface Properties ◽  
Butyl Acrylate ◽  
Langmuir Monolayer ◽  
Aggregation Behavior ◽  
Reactivity Ratios ◽  
Water Interface ◽  
Amphiphilic Copolymers ◽  
Air Water Interface ◽  
Raft Agent

Copolymerization of 2,2,3,3,4,4,5,5-octafluoropentyl acrylate (OFPA) and acrylic acid (AA), OFPA and tert-butyl acrylate (t-BA) in presence ofdibenzylcarbonotrithioate (BTC) and polymeric RAFT-agents was studied, reactivity ratios were calculated. It was shown that type of RAFT-agent can influence on chain microstructure of obtained polymers. Aggregation behavior of obtained amphiphilic copolymers with different microstructures at the air/water interface was characterized by the Langmuir monolayer technique. The effect of the microstructureand subphase pH on the isotherm curves were shown.

Polystyrene-b-Poly(tert-butyl acrylate) and Polystyrene-b-Poly(acrylic acid) Dendrimer-Like Copolymers:  Two-Dimensional Self-Assembly at the Air−Water Interface

Langmuir ◽  
2007 ◽  
Vol 23 (5) ◽  
pp. 2531-2538 ◽  
Author(s):  
Thomas J. Joncheray ◽  
Sophie A. Bernard ◽  
Rachid Matmour ◽  
Bénédicte Lepoittevin ◽  
Rita J. El-Khouri ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Self Assembly ◽  
Butyl Acrylate ◽  
Water Interface ◽  
Two Dimensional ◽  
Tert Butyl ◽  
Air Water Interface ◽  
Poly Acrylic Acid

Aggregation behavior of polystyrene-b-poly(acrylic acid) at the air–water interface

Soft Matter ◽  
2013 ◽  
Vol 9 (2) ◽  
pp. 443-453 ◽  
Author(s):  
Xiaolu Wang ◽  
Xiaoyan Ma ◽  
Duyang Zang
Keyword(s):  
Acrylic Acid ◽  
Aggregation Behavior ◽  
Water Interface ◽  
Air Water Interface ◽  
Poly Acrylic Acid

scholarly journals Nanoparticle interaction with model lung surfactant monolayers

2009 ◽  
Vol 7 (suppl_1) ◽  
Author(s):  
Rakesh Kumar Harishchandra ◽  
Mohammed Saleem ◽  
Hans-Joachim Galla
Keyword(s):  
Surface Properties ◽  
Self Assembly ◽  
Current Knowledge ◽  
Surface Film ◽  
Lung Surfactant ◽  
Hydrophobic Surface ◽  
Surface Pattern ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface

One of the most important functions of the lung surfactant monolayer is to form the first line of defence against inhaled aerosols such as nanoparticles (NPs), which remains largely unexplored. We report here, for the first time, the interaction of polyorganosiloxane NPs (AmorSil20: 22 nm in diameter) with lipid monolayers characteristic of alveolar surfactant. To enable a better understanding, the current knowledge about an established model surface film that mimics the surface properties of the lung is reviewed and major results originating from our group are summarized. The pure lipid components dipalmitoylphosphatidylcholine and dipalmitoylphosphatidylglycerol have been used to study the biophysical behaviour of their monolayer films spread at the air–water interface in the presence of NPs. Film balance measurements combined with video-enhanced fluorescence microscopy have been used to investigate the formation of domain structures and the changes in the surface pattern induced by NPs. We are able to show that NPs are incorporated into lipid monolayers with a clear preference for defect structures at the fluid–crystalline interface leading to a considerable monolayer expansion and fluidization. NPs remain at the air–water interface probably by coating themselves with lipids in a self-assembly process, thereby exhibiting hydrophobic surface properties. We also show that the domain structure in lipid layers containing surfactant protein C, which is potentially responsible for the proper functioning of surfactant material, is considerably affected by NPs.

scholarly journals Synthesis of amphiphilic copolymers based on acrylic acid, fluoroalkyl acrylates and n-butyl acrylate in organic, aqueous–organic, and aqueous media via RAFT polymerization

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 24522-24536 ◽  
Author(s):  
N. S. Serkhacheva ◽  
O. I. Smirnov ◽  
A. V. Tolkachev ◽  
N. I. Prokopov ◽  
A. V. Plutalova ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Polyacrylic Acid ◽  
Self Assembly ◽  
Butyl Acrylate ◽  
Raft Polymerization ◽  
Aqueous Media ◽  
Amphiphilic Copolymers

Hydrophilic and amphiphilic polymeric trithiocarbonates based on polyacrylic acid are able to provide polymerization-induced self-assembly in copolymerization of butyl and fluoroalkyl acrylates.

Temperature-Dependent Aggregation Behavior of Symmetric Long-Chain Bolaamphiphiles at the Air−Water Interface

Langmuir ◽  
2006 ◽  
Vol 22 (6) ◽  
pp. 2668-2675 ◽  
Author(s):  
Karen Köhler ◽  
Annette Meister ◽  
Bodo Dobner ◽  
Simon Drescher ◽  
Friederike Ziethe ◽  
...  
Keyword(s):  
Aggregation Behavior ◽  
Water Interface ◽  
Temperature Dependent ◽  
Air Water Interface ◽  
Long Chain
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