Surface morphology and wetting properties of surfaces coated with an amphiphilic diblock copolymer

Callewaert, Maïté; Gohy, Jean‐François; Dupont‐Gillain, Christine C.; Boulangé-Petermann, L.; Rouxhet, Paul

doi:10.1016/j.susc.2004.11.014

Cited by 20 publications

(21 citation statements)

References 31 publications

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“…In contrast, the rougher surfaces obtained by grafting PS-PAA with a higher PS/PAA molar ratio may originate from drying of the polymer solution. However, the influence of the length of PS is obviously greater than that of PAA, which does not agree with the results given by Callewaert [19]. This may be due to differences of the copolymer composition and block length, which need intensive study.…”

Section: Resultscontrasting

confidence: 67%

“…The advancing contact angle of the PE-anthranilate decreased from 110 • at pH 1 to 33 • at pH 12. Callewaert et al [19] constructed three PS-PAA diblock copolymer layers on glass and gold substrates. Dynamic wetting measurements showed that the coated layers were able to reorganize upon immersion-emersion in solutions with different pH values, due to the deprotonation and swelling of the PAA chain.…”

Section: Introductionmentioning

confidence: 99%

“…However, for a smart surface prepared on a flat surface, the responsive range is relatively narrow [21][22][23][24][25][26], which might have fatal limitations for applications. How to make a responsive surface, which switches in a wide range of wettability between hydrophilic and hydrophobic states, especially between superhydrophilic and superhydrophobic states, is still a challenge.…”

Section: Introductionmentioning

confidence: 99%

“…Both models indicate that surface roughness will make a hydrophilic surface more hydrophilic, and a hydrophobic surface more hydrophobic, which means the roughness effect is able to greatly enhance the responsive range of such a smart surface. For instance, gold microstructures have been successfully used to increase the responsive range of a smart surface [30][31][32]. Recently, other approaches to fabrication of rough surfaces have been also developed, such as electrospinning or electrospraying of PS [33], phase-separation micromolding of Hyflon [34], i-PP crystallized network structure [35], plasma depositing/etching polymer [36,37], chemical etching [38], artificial lotus leaf replicas [39], and wet chemical depositions [40,41].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Amphiphilic copolymer grafted “smart surface” enhanced by surface roughness

Zhu

Shi

et al. 2007

Journal of Colloid and Interface Science

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Section: Resultscontrasting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Amphiphilic copolymer grafted “smart surface” enhanced by surface roughness

Zhu

Shi

et al. 2007

Journal of Colloid and Interface Science

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“…8. Unlike in the linear modification system [31][32][33][34], the hydrophilicity of ACPS/ PVDF blend membranes increases and then stabilizes at a certain level. These data indicate the enrichment of PEO segments on membrane surface during the washing process.…”

Section: Membrane Filtration Property and Its Stabilitymentioning

confidence: 99%

Modification effects of amphiphilic comb-like polysiloxane containing polyether side chains on the PVDF membranes prepared via phase inversion process

et al. 2008

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Amphiphilic comb-like polysiloxane (ACPS) containing polyether side chains was used as the modification reagent in the preparation of hydrophilic porous poly (vinylidene fluoride) (PVDF) membranes via a phase inversion process. The effects of ACPS on morphology, crystallinity, mechanical properties, reservation of ACPS in the phase inversion process, chemical structure, hydrophilicity and filterability performance of porous PVDF membranes were discussed. It was found that the addition of ACPS would result in the delayed demixing which yields ''sponge-like'' sublayers and longer crystallization time during the membrane formation process. It was revealed that O/F ratios of the bulk membrane were almost the same as those of the corresponding casting solutions which obviously indicated the high reservation of ACPS in the membrane formation process. The fact that the O/F ratios in the membrane surface layers were much higher than those in the bulk membrane proved the enrichment of ACPS on the surface. The filterability experiments and water contact angle testing proved the hydrophilicity of the blend membranes. Through a schematic model, the mechanism relating the membrane structure and performance was interpreted. From the observed results, it can be concluded that ACPS acts as a potential candidate material for preparing PVDF membranes with extraordinary hydrophilicity and filterability.

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Synthesis, characterization, and application of novel amphiphilic poly(D‐gluconamidoethyl methacrylate)‐b‐polyurethane‐b‐ poly(D‐gluconamidoethyl methacrylate) triblock copolymers

Vishwakarma

Mishra

et al. 2012

J of Applied Polymer Sci

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Novel amphiphilic ABA-type poly(D-gluconamidoethyl methacrylate)-b-polyurethane-b-poly(D-gluconamidoethyl methacrylate) (PGAMA-b-PU-b-PGAMA) tri-block copolymers were successfully synthesized via the combination of the step-growth and coppercatalyzed atom transfer radical polymerization (ATRP). Dihydroxy polyurethane (HO-PU-OH) was synthesized by the step-growth polymerization of hexamethylene diisocyanate with poly(tetramethylene glycol). PGAMA-b-PU-b-PGAMA block copolymers were synthesized via copper-catalyzed ATRP of GAMA in N, N-dimethyl formamide at 20 C in the presence of 2, 2 0 -bipyridyl using Br-PU-Br as macroinitiator and characterized by 1 H-NMR spectroscopy and GPC. The resulting block copolymer forms spherical micelles in water as observed in TEM study, and also supported by 1 H NMR spectroscopy and light scattering. Miceller size increases with increase in hydrophilic PGAMA chain length as revealed by DLS study. The critical micellar concentration values of the resulting block copolymers increased with the increase of the chain length of the PGAMA block. Thermal properties of these block copolymers were studied by thermo-gravimetric analysis, and differential scanning calorimetric study. Spherical Ag-nanoparticles were successfully synthesized using these block copolymers as stabilizer. The dimension of Ag nanoparticle was tailored by altering the chain length of the hydrophilic block of the copolymer. A mechanism has been proposed for the formation of stable and regulated Ag nanoparticle using various chain length of hydrophilic PGAMA block of the tri-block copolymer.

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Surface morphology and wetting properties of surfaces coated with an amphiphilic diblock copolymer

Cited by 20 publications

References 31 publications

Amphiphilic copolymer grafted “smart surface” enhanced by surface roughness

Amphiphilic copolymer grafted “smart surface” enhanced by surface roughness

Modification effects of amphiphilic comb-like polysiloxane containing polyether side chains on the PVDF membranes prepared via phase inversion process

Synthesis, characterization, and application of novel amphiphilic poly(D‐gluconamidoethyl methacrylate)‐b‐polyurethane‐b‐ poly(D‐gluconamidoethyl methacrylate) triblock copolymers

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