Hydrophilic polymer supports grafted by poly(ethylene glycol) derivatives via atom transfer radical polymerization

Chen, Chih‐Ping; Ko, Bao‐Tsan; Lin, Shin-Lei; Hsu, Meei-Yu; Ting, Chou‐Chik

doi:10.1016/j.polymer.2006.07.012

Cited by 10 publications

(5 citation statements)

References 18 publications

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“…In line with the results obtained by Chen et al ,25 grafting with DMA resulted in a marked increase in the hydrophilic character, whatever the DMA percentage in the reaction medium (30⩽ θ ⩽45°). Probably because of its hydrophilic nature and its molecular volume being higher than AAc (Table 1), the penetration of DMA within the polymer bulk was restricted.…”

Section: Resultssupporting

confidence: 90%

Surface modification of polypropylene by radiation grafting of hydrophilic monomers: Physicochemical properties

Riquet¹,

Rohman²,

Guinault

et al. 2011

Surface Engineering

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1 - ArticleThe surface of polypropylene was modified by the post-irradiation grafting of acrylic acid (AAc), N,N-dimethylacrylamide (DMA) and mixtures of AAc (DMA) and a quaternary ammonium salt (QAS). The polypropylene sheets were activated by electron beam radiation before the grafting reaction. The degree of grafting was determined by weighing and the surface hydrophilicity was measured by measuring the water contact angles. The presence of oxygen and nitrogen was demonstrated by XPS. The surface charge and the isoelectric point were determined by the streaming potential method. The grafting of DMA, like that of AAc, depended on monomer availability, but the monomer did not permeate into the polypropylene bulk. For the same surface hydrophilicity, depending on the nature of the monomer or comonomer grafted, it is possible to modulate the physicochemical characteristics which determine the phenomena governing adhesion, and probably to adapt them to a given application

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Section: Resultssupporting

confidence: 90%

Surface modification of polypropylene by radiation grafting of hydrophilic monomers: Physicochemical properties

Riquet¹,

Rohman²,

Guinault

et al. 2011

Surface Engineering

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“…In line with the results obtained by Chen et al (2006) grafting with DMA resulted in a marked increase in hydrophilicity, whatever the DMA percentage in the reaction medium (30≤θ water≤411).…”

Section: Characterization Of Surface Propertiessupporting

confidence: 89%

Design of modified plastic surfaces for antimicrobial applications: Impact of ionizing radiation on the physical and mechanical properties of polypropylene

Riquet

Delattre

Vitrac

et al. 2013

Radiation Physics and Chemistry

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Surface modification of polypropylene (PP) sheets was carried out by radiation induced graft polymerization of hydrophilic functional molecules such as N,N-dimethylacrylamide (DMA) and [2-methacryloyloxy)ethyl] trimethylammonium chloride, which is a quaternary ammonium salt (QAS). Polypropylene sheets were activated prior to the grafting reaction by using electron beam radiation. The changes in morphology, crystallinity and tensile parameters like deformation and stress at yield and deformation at break of PP after irradiation were investigated. The results showed that a minor crystalline reorganization takes place during the irradiation of PP at 100 kGy.The grafting has been observed to be strongly dependent on the monomer dilution in the reaction medium. After grafting of QAS (40%) and DMA (20%) it was possible to develop highly hydrophilic surfaces (water contact angle comprised between 30 and 411). The surfaces of virgin, irradiated and grafted PP were studied using polarized optical microscopy (POM) and scanning electron microscopy (SEM). Spherical particles (i.e. polystyrene or silica beads) adhering to the modified samples were studied according to the surface parameters. Adhesion tests confirmed the strong influence of substrate type (mainly hydrophilicity and roughness) and to a lesser extent underlined the role of electrostatic interactions for the design of plastic surfaces for antimicrobial applications.

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“…In addition to inorganic materials such as silicon, metal, and carbon allotrope, organic polymer particles, films, and fibers can be now modified by surface-initiated living radical polymerization with a copper catalyst toward creation of novel surface-functionalized materials. The substrates are extended to wide variety of polymeric compounds, as shown in the following examples: (1) organic polymer particles polydivinylbenzene, divinylbenzene cross-linked polystyrene latex, polystyrene latex, Wang resin, Merrifield resin, and chitosan; (2) films nylon, poly(ethylene terephthalate), polyimide, polytetrafluoroethylene, poly(vinylidene fluoride), poly(vinyl chloride), and isotactic polypropylene; (3) fibers cellulose of filter paper. , Conveniently, the poly(vinylidene fluoride) and poly(vinyl chloride) films can directly initiate copper-catalyzed living radical polymerization without any extra introduction of initiating moieties. Thanks to the versatility of applicable monomers and solid surface substrates, metal-catalyzed system tremendously contributes new vistas to synthesis of surface-modified materials with unique functions.…”

Section: Precision Polymer Synthesismentioning

confidence: 99%

Transition Metal-Catalyzed Living Radical Polymerization: Toward Perfection in Catalysis and Precision Polymer Synthesis

2009

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Hydrophilic polymer supports grafted by poly(ethylene glycol) derivatives via atom transfer radical polymerization

Cited by 10 publications

References 18 publications

Surface modification of polypropylene by radiation grafting of hydrophilic monomers: Physicochemical properties

Surface modification of polypropylene by radiation grafting of hydrophilic monomers: Physicochemical properties

Design of modified plastic surfaces for antimicrobial applications: Impact of ionizing radiation on the physical and mechanical properties of polypropylene

Transition Metal-Catalyzed Living Radical Polymerization: Toward Perfection in Catalysis and Precision Polymer Synthesis

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