Surface amination of PEEK film by selective wet-chemistry

Henneuse-Boxus, Catherine; Boxus, Thierry; Dulière, Eric; Pringalle, None Catherine; Tesolin, Lorenzo; Adriaensen, Yasmine; Marchand‐Brynaert, Jacqueline

doi:10.1016/s0032-3861(97)10216-6

Cited by 33 publications

(26 citation statements)

References 25 publications

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“…[19][20] There is a lack of studies on the bulk reduction of PEEK as here reported here. The 13 C NMR of solid samples, shown in Figure 9, show the presence of a peak at 62.55 ppm, related to the carbon linked to the hydroxyl group and a diminishing of the peak at 192 ppm, corresponding to the carbon of the carbonyl group.…”

Section: Preparation Of Peek-ohmentioning

confidence: 88%

Preparation and characterization of poly(ether ether ketone) derivatives

Conceição¹,

Bertolino²,

Barra³

et al. 2008

J. Braz. Chem. Soc.

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Neste trabalho, três derivados do poli(éter éter cetona) [PEEK] foram preparados em suspensão por meio da nitração, redução para o grupo amino e redução da carbonila. Os polímeros modificados foram caracterizados por espectroscopia de infravermelho (FTIR), Ressonância Magnética Nuclear (NMR), análise termogravimétrica (TGA) e apresentaram características interessantes para a preparação de membranas e compósitos, tais como, basicidade e solubilidade em solventes orgânicos, como DMF.In this study, three derivatives of poly(ether ether ketone) [PEEK] were prepared in suspension by nitration (NO 2 -PEEK), reduction to the amino group (NH 2 -PEEK) and carbonyl reduction (PEEK-OH). These modified polymers were characterized by NMR, IR spectroscopy and thermogravimetric analysis. They showed interesting characteristics, such as, basicity and higher solubility in organic solvents, like DMF, for use as membranes and composites in different applications.

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Section: Preparation Of Peek-ohmentioning

confidence: 88%

Preparation and characterization of poly(ether ether ketone) derivatives

Conceição¹,

Bertolino²,

Barra³

et al. 2008

J. Braz. Chem. Soc.

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show abstract

“…1 But most of the functionalizations of aryl polymers for membrane applications have been performed through chemical methods. 8,9 The blends 10,11 and composites [12][13][14][15] of PEEK with various materials have been used in membrane, structural, and biomedical applications. Generally PEEK is produced by stepgrowth polymerization by the dialkylation of bisphenolate salts as reported elsewhere.…”

Section: Introductionmentioning

confidence: 99%

“…3,[16][17][18] Few researchers have investigated to functionalize the PEEK for several applications. To the best of author's knowledge, the nitration, 19 amination, 9,10,19 sulfonation, 9,10 hydroxylation, 9,10,19,20 and pendant sulfonic acid phenyl groups 21 have been done to improve the performance of PEEK to date.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is known that the surface modification of PEEK by amine group significantly improves the membrane properties and the cellular adhesion properties for the biological applications. 9 The amine group can also be grafted with conventional polymer (sulfonated PEEKs) to improve the mechanical properties of the membrane materials. Further mechanical behavior as well as hydrophilic detrimental effect of amine functionalized polymers can be improved by making of composites with porous inorganic compounds (silicon based or calcium phosphate compounds) for membrane applications.…”

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confidence: 99%

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Functionalized poly(ether ether ketone): Improved mechanical property and acellular bioactivity

Pramanik

Kar

2011

J of Applied Polymer Sci

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Poly(ether ether ketone), PEEK, was functionalized by addition of pendant functional groups, that is, acetyl, carboxylic, acyl chloride, amide, and amine groups in the benzene ring of polymer backbone without substituting the parent (ether or ketonic) functional groups of polymer to improve the mechanical and surface adhesivity with acellular inorganic biomaterials. The functional groups of virgin PEEK and functionalized PEEK were identified by Fourier transform infrared spectroscopy and 13 C nuclear magnetic resonance. The crystallinity was studied by X-ray diffraction and further supported by differential scanning calorimetry (DSC) analysis. Similarly, the change in glass transition temperature was confirmed by the DSC and dynamic mechanical analysis (DMA). The improved mechanical property was also evaluated by DMA. The excellent surface adhesivity and bioactivity were revealed by acellular in vitro test using simulated body fluid.

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“…31 In the sample, PEEK-NHCO 2 Ph the carbamate function was visible at 1739 cm~1 ; this new band disappeared totally when the polymer was transformed into Finally, PEEK-PEEK-NH 2 .32 FMOC was characterized by the appearance of a broad band at 1742 cm~1 (carboxyl and carbamate functions), which signiÐcantly diminished after deprotection into PEEK-glutamine. 32 The XPS spectra of the various PEEK samples provided di †erent kinds of information. First of all, quantitative analyses of the atomic ratios allowed the Ðne determination of the levels of functionalization.…”

Section: Discussionmentioning

confidence: 99%