Direct synthesis of amphiphilic block copolymers, consisting of poly(methyl methacrylate) and poly(sodium styrene sulfonate) blocks through atom transfer radical polymerization

Oikonomou, Evdokia K.; Pefkianakis, Elefterios K.; Bokias, Georgios; Kallitsis, Joannis K.

doi:10.1016/j.eurpolymj.2008.03.005

Cited by 25 publications

(20 citation statements)

References 31 publications

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“…The elaboration of PSS is often carried out by sulfonation of PS 37, 38. However, various authors have recently reported the advantages of polymerizing styrene sulfonate ester over the sulfonation way 25, 39–41. This method avoids incomplete and random sulfonation, crosslinking,42 and degradation, which may occur in the sulfonation of PS.…”

Section: Resultsmentioning

confidence: 99%

“…PSSS can be synthesized by nitroxide‐mediated polymerization (NMP),21 by reversible addition‐fragmentation chain‐transfer,22 or by ATRP 23, 24. This last technique was applied to synthesize block copolymers25 or for growing PSSS chains from organic26, 27 or inorganic surfaces 28–32. It was of interest to investigate the synthesis of PVDF‐ b ‐PSS block copolymers.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of poly(vinylidene fluoride)‐b‐poly(styrene sulfonate) block copolymers by controlled radical polymerizations

Laruelle

Nicol

Améduri

et al. 2011

J. Polym. Sci. A Polym. Chem.

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Block copolymers based on poly(vinylidene fluoride), PVDF, and a series of poly(aromatic sulfonate) sequences were synthesized from controlled radical polymerizations (CRPs). According to the aromatic monomers, appropriate techniques of CRP were chosen: either iodine transfer polymerization (ITP) or atom transfer radical polymerization (ATRP) from PVDF‐I macromolecular chain transfer agents (CTAs) or PVDF‐CCl3 macroinitiator, respectively. These precursors were produced either by ITP of VDF with C6F13I or by radical telomerization of VDF with chloroform, respectively. Poly(vinylidene fluoride)‐b‐poly(sodium styrene sulfonate), PVDF‐b‐PSSS, block copolymers were produced from both techniques via a direct polymerization of sodium styrene sulfonate (SSS) monomer or an indirect way with the use of styrene sulfonate ethyl ester (SSE) as a protected monomer. Although the reaction led to block copolymers, the kinetics of ITP of SSS showed that PVDF‐I macromolecular CTAs were not totally efficient because a limitation of the CTA consumption (56%) was observed. This was probably explained by both the low activity of the CTA (that contained inefficient PVDF‐CF2CH2I) and a fast propagation rate of the monomer. That behavior was also noted in the ITP of SSE. On the other hand, ATRP of SSS initiated by PVDF‐CCl3 was more controlled up to 50% of conversion leading to PVDF‐b‐PSSS block copolymer with an average number molar mass of 6000 g·mol−1. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of poly(vinylidene fluoride)‐b‐poly(styrene sulfonate) block copolymers by controlled radical polymerizations

Laruelle

Nicol

Améduri

et al. 2011

J. Polym. Sci. A Polym. Chem.

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“…Anionic monomers, such as sulfonate, carboxylic acid and phosphonic acid containing monomers, have all been polymerized using RAFT. Sulfonate65–68 and phosphonic acid69, 70 modified monomers have been polymerized in water, while carboxylic acid monomers have been polymerized in both water and organic media. Indeed, carboxylic acid monomers can present tunable hydrophilic/hydrophobic properties depending on the solution pH 71–73…”

Section: Raft Polymerizationmentioning

confidence: 99%

Characterization and electrical properties of methyl‐2‐hydroxyethyl cellulose doped with erbium nitrate salt

El‐Kader

Said

El-Naggar

et al. 2006

J of Applied Polymer Sci

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X-ray diffraction, infrared (IR), and electrical properties for pure and Er (NO 3 ) 3 -doped methyl-2-hydroxyethyl cellulose (MHEC) with concentrations of 0.5, 1, 2, 5, 7, and 10 wt % were studied. X-ray analysis indicates that the addition of Er (NO 3 ) 3 , which is a crystalline material, to MHEC at concentrations 10 and 13 wt % leads to the formation of crystalline phases in the amorphous polymeric matrix. The appearance of the bending mode n 2 and the combination mode (n 1 þ n 4 ) of Er (NO 3 ) 3 in the IR spectra of composite samples indicates the coordination of nitro group in the chains of MHEC. From the I-V characteristics, it was found that the charge transport mechanism in MHEC appears to be essentially space charge limited conduction, while the predominant mechanism in the composite samples is Poole-Frenkel. Values of both drift mobility (m) and the charge carrier density (n) has been reported. The temperature dependence conductivity data has been analyzed in terms of the Arrhenius and Mott's variable range hopping models. Different Mott's parameters such as the density of states, N(E F ), hopping distance (R), and average hopping energy (W) have been evaluated.

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“…1 H NMR spectra , and the terpolymers: P-1 (c), P-2 (d), and P-3 (e).This figure is available in colour online at wileyonlinelibrary.com/journal/pat and MMA were copolymerized with MPEG-Br, the signal of the phenyl protons from SSNa repeating units appeared at 6.50-7.80 ppm (f), [43,46] and the signal of the protons of -COOCH 3 from MMA repeating units appeared at 3.32-3.54 ppm (g) in the spectra of the random terpolymers [DMSO-d 6 , ppm from TMS]. [47][48][49] The peak observed at 1.5 ppm was assigned to the protons of SSNa; the multipeaks at the regions of 0.8-1.2 ppm and 1.5-2.1 ppm were attributed to the methyl and methylene groups of MMA, [50] respectively.…”

Section: Ftir Spectra Analysismentioning

confidence: 95%

“…[40,41] The peak at 1038 cm À1 was attributed to the SO 3 symmetric modes, and the peak at 1191 cm À1 was attributed to the SO 3 asymmetric modes. [42,43] The broad peak at 3450 cm À1 of MPEG-P(SSNaco-MMA) was caused by the O-H stretching vibration of the residual water and the -SO 3 H group, [44,45] , and the peak intensity was stronger than those of MPEG and MPEG-Br because of the existence of SSNa. Furthermore, the decreased peak intensities at 1038 cm À1 and 1191 cm À1 indicated that the contents of the SSNa in the terpolymers decreased from P-1 to P-3.…”

Section: Ftir Spectra Analysismentioning

confidence: 98%

Modification of polyethersulfone membranes using terpolymers engineered and integrated antifouling and anticoagulant properties

Nie

Zhao

et al. 2013

Polymers for Advanced Techs

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In this study, random terpolymers of methoxy poly(ethylene glycol)-poly(sodium styrene sulfonate-co-methyl methacrylate) (MPEG-P(SSNa-co-MMA)) integrated with antifouling and anticoagulant properties were synthesized by atom transfer radical polymerization (ATRP) for the first time and confirmed by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and gel permeation chromatography (GPC). The terpolymers with desired antifouling and anticoagulant segments were then used as amphiphilic additives to modify polyethersulfone membranes by an engineering blended approach. Water contact angle (WCA) results indicated that the surface hydrophilicity of the modified membranes enhanced. Protein ultrafiltration experiments showed that the antifouling ability of the modified membranes increased. In addition, the modified membranes showed decreased protein adsorption (bovine serum albumin, BSA), suppressed platelet adhesion, and prolonged activated partial thromboplastin time (APTT).

show abstract

Direct synthesis of amphiphilic block copolymers, consisting of poly(methyl methacrylate) and poly(sodium styrene sulfonate) blocks through atom transfer radical polymerization

Cited by 25 publications

References 31 publications

Synthesis of poly(vinylidene fluoride)‐b‐poly(styrene sulfonate) block copolymers by controlled radical polymerizations

Synthesis of poly(vinylidene fluoride)‐b‐poly(styrene sulfonate) block copolymers by controlled radical polymerizations

Characterization and electrical properties of methyl‐2‐hydroxyethyl cellulose doped with erbium nitrate salt

Modification of polyethersulfone membranes using terpolymers engineered and integrated antifouling and anticoagulant properties

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