Synthesis, characterization, and antibacterial activity of metal nanoparticles embedded into amphiphilic comb-type graft copolymers

Kalaycı, Özlem A.; Cömert, Füsun; Hazer, Baki; Atalay, Turgay; Cavicchi, Kevin A.; Çakmak, Mükerrem

doi:10.1007/s00289-009-0196-y

Cited by 85 publications

(56 citation statements)

References 47 publications

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“…The polymer was filtered, washed with water and dried under vacuum overnight. For the purification, it was redissolved in THF and reprecipitated in 200 ml of distilled water and then dried under vacuum overnight at 40 o C. A series of gold nanoparticles embedded PP-g-PEG amphiphilic graft copolymers were prepared by modifying a previously reported procedure developed [24]. In Table 1, the amounts of the reagents are shown.…”

Section: Synthesis Of Gold Nanoparticles Embedded Pp-g-peg Amphiphilimentioning

confidence: 99%

Solution electrospinning of polypropylene-based fibers and their application in catalysis

et al. 2016

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Since the dissolution of polyolefins is a chronic problem, melt processing has been tacitly accepted as an obligation. In this work, polypropylene (PP) was modified on molecular level incorporating poly(ethylene glycol) (PEG) as graft segment (PP-g-PEG) in a range of 6 to 9 mol%. Gold nanoparticles were nucleated in the presence of the copolymer chains via redox reaction. The dissolution of the amphiphilic comb-type graft copolymers containing gold nanoparticles (80 nm in diameter) was achieved in toluene and successfully electrospun from its solution. The diameter of composite fibers was in the range from 0.3 to 2.5 µm. The design of the structurally organized copolymer fiber mats provided a support medium for the nanoparticles enhancing the active surface area for the catalytic applications. The resulting composite fibers exhibited rapid catalytic reduction of methylene blue (MB) dye in the presence of sodium borohydride (NaBH 4 ) compared to corresponding composite cast film.

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Section: Synthesis Of Gold Nanoparticles Embedded Pp-g-peg Amphiphilimentioning

confidence: 99%

Solution electrospinning of polypropylene-based fibers and their application in catalysis

et al. 2016

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“…For example, antibacterial [12], antifouling [13] and hydrogen storage [14] properties of polypropylene were enhanced via surface-initiated atom transfer radical polymerization [15]. Chlorine atoms on the polymer chains both develop polarity and allow reactive sites for a series of monomer such as acrylates, methacrylates and styrenes [16][17][18][19]. Polymers containing chlorine atoms, such as chlorinated poly (vinyl chloride) (CPVC), poly(vinyl chloride) (PVC), chlorinated polyethylene and polypropylene exhibit high fire and cold resistance as well as plasticity.…”

Section: Introductionmentioning

confidence: 99%

Polypropylene-based graft copolymers via CuAAC click chemistry

Açık¹,

Sey²,

Taşdelen³

2018

Express Polym. Lett.

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Abstract. Graft copolymers from commercial chlorinated polypropylene (PP-Cl) possessing either poly(ethylene glycol) (PEG) or poly(ɛ-caprolactone) (PCL) grafts are synthesized by copper (I)-catalyzed azide-alkyne cycloaddition 'click' reaction (CuAAC). For this purpose, azido-functional polypropylene is prepared by nucleophilic substitution of chlorine groups of PP-Cl with azidotrimethylsilane-tetrabutylammonium fluoride. Whereas, the clickable alkyne end-functional PEG and PCL are independently synthesized by esterification reaction of poly(ethylene glycol) methyl ether with 4-pentyonic acid at room temperature and ring-opening polymerization of ε-caprolactone using stannous octoate as catalyst and propargyl alcohol as initiator. Finally, the corresponding graft copolymers, PP-g-PEG and PP-g-PCL, with different surface properties were successfully synthesized by CuAAC 'click' reaction under mild condition. Spectral, chromatographic and thermal analyses at various stages prove the formation of desired polypropylene-based graft copolymers with well-defined properties. Furthermore, the water contact angle values of PP-Cl, PP-g-PEG and PP-g-PCL are found as 90±1°, 78±1.8° and 83±2.1°, respectively.

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“…The synthesis of PP-g-PEG and Ag nanoparticles embedded PP-g-PEG was explained in our previous study in detail [18]. Briefly, the Williamson-ether-synthesis-like reaction between PEG and PP-Cl was performed in tetrahydrofuran (THF) solution in the presence of sodium hydride.…”

Section: Methodsmentioning

confidence: 99%

“…However, to obtain a wider medical application, nanoparticles can be embedded, and hydrophilic groups can be introduced into this polymer to overcome its hydrophobic character via postpolymerization reactions [2,18,21,22]. We have previously investigated the soft tissue response of polypropylene-grafted polyethylene glycol (PP-g-PEG) amphiphilic graft copolymer film and its nanocomposite version containing gold nanoparticles in rats, under the skin, and found out that these polymer patches have good soft tissue response [14].…”

Section: Introductionmentioning

confidence: 98%

The efficacy of silver-embedded polypropylene-grafted polyethylene glycol-coated ventricular catheters on prevention of shunt catheter infection in rats

Hazer

Mut

Dinçer³

et al. 2012

Childs Nerv Syst

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Synthesis, characterization, and antibacterial activity of metal nanoparticles embedded into amphiphilic comb-type graft copolymers

Cited by 85 publications

References 47 publications

Solution electrospinning of polypropylene-based fibers and their application in catalysis

Solution electrospinning of polypropylene-based fibers and their application in catalysis

Polypropylene-based graft copolymers via CuAAC click chemistry

The efficacy of silver-embedded polypropylene-grafted polyethylene glycol-coated ventricular catheters on prevention of shunt catheter infection in rats

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