Preparation of colored latex containing oil-soluble dyes with high dye content by mini-emulsion polymerization

Takasu, Mayuko; Shiroya, Toshifumi; Takeshita, Kimiya; Sakamoto, Munehiro; Kawaguchi, Haruma

doi:10.1007/s00396-003-0902-5

Cited by 45 publications

(22 citation statements)

References 8 publications

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“…Quite few approaches have been briefly reported to prepare nanocolorants. For instance, copper phthalocyanine dye and styryl dye have been encapsulated into polystyrene latex using miniemulsion polymerization to get colored latex particles 28–30. A modified miniemulsion process was reported to prepare a nanocolorant by one‐step miniemulsion polymerization, see Figure 1,31 based on the architecture which originally was designed, and the practical performances of the obtained nanocolorant were well characterized.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

El-sayed

Kamel

Morsy

et al. 2012

J of Applied Polymer Sci

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Nanocolorant, nano Disperse Red 60, was successfully prepared via modified miniemulsion polymerization process. Transmission electron microscopy was employed to determine the droplet and particle sizes. The effects of the speed and the time of homogenization, the surfactant nature and its amount, the presence of dye, the initiator nature, and the presence of a crosslinker on the morphology and particle size of nanocolorant were studied. UV-vis absorption spectra of nanocolorant with respect to the commercial corresponding dye showed a hypsochromic shift confirming the decrease in particle size. Fourier transform infrared spectra proved the chemical composition of nanocolorant particles assisting the incorporation of the dye within the polystyrene particles.The monomer conversion, surface tension, and apparent sedimentation stability also were measured. The relative electrical conductivity of the suspension was used for determining the polymerization mechanism. The kinetic polymerization was investigated using a pseudofirst-order and it is found that the rate constant of polymerization equals 0.01358 min À1 . Zeta potential measurements were employed for miniemulsion which showed that it has good stability at all range of pH.Correspondence to: M. M. Kamel (mona_kamel_nrc@ yahoo.com).

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Section: Introductionmentioning

confidence: 99%

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

El-sayed

Kamel

Morsy

et al. 2012

J of Applied Polymer Sci

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“…The value of nitrogen content was 0.52% and the N source was attributed to AIBN. [35] After in situ graft polymerization, the value of nitrogen content increased to 1.78%, which also demonstrated that immobilization of poly[VBIM]Cl was realized and the bonding density on the surface of monolith was 0.75 mmol/m 2 for imidazole group. The morphology of monolithic columns was observed by SEM (Figure 3).…”

Section: Characterization Of the Developed Monolithmentioning

confidence: 77%

Facile Fabrication of Polymeric Ionic Liquid Grafted Porous Polymer Monolith for Mixed‐Mode High Performance Liquid Chromatography

Li¹,

Qi²,

Shen³

et al. 2014

Chin. J. Chem.

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A novel polymeric ionic liquid grafted porous polymer monolith has been facilely fabricated for mixed-mode chromatography. The column is prepared from poly (glycidyl methacrylate-co-ethylene dimethacrylate) monolith through hydrolyzation of the epoxy moieties into hydroxyl groups, followed by "grafting from" polymerization of ionic liquid of 1-vinyl-3-butylimidazolium chloride. Successful modification is characterized by scanning electron microscope, infrared spectroscopy, elemental analysis and mercury intrusion porosimetry. The HPLC performance of developed column is evaluated by separating acidic vitamin B analytes, neutral steroids and basic aromatic amines in mixed-mode chromatography on a single column, respectively. The ionic liquid affords the monolith with both enhanced separation ability and improved column efficiency.

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“…Miniemulsion polymerization is a versatile method to prepare composite particles with a diameter around or less than 100 nm 16. Materials that are included in the particle should be hydrophobic ones, e.g., organic dyes, carbon, hydrophobized metal and quantum dots, etc 17–21. In miniemulsion polymerization, such hydrophobic molecules and nanoparticles are dissolved or dispersed in monomers and then the solution or dispersion are poured into an aqueous solution of emulsifier.…”

Section: Experimental Partmentioning

confidence: 99%

Light‐Controlled On‐Off Switch of a Fluorescent Nanoparticle

Furukawa

Misu

Ando

et al. 2008

Macromol. Rapid Commun.

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A novel fluorescent nanoparticle with reversible on‐off switching properties has been synthesized. Three different wavelengths of light are used for switching‐on light, switching‐off light and excitation light, respectively. Thus, when this particle is used as a fluorescent probe by irradiation of the excitation light, the on‐off status can be maintained. We also showed that the on‐off status of the fluorescent particle even embedded in hydrogels can be remotely controlled by using two different wavelengths of light. These results promise that this kind of fluorescent particles will introduce a new concept and it will possibly be applied as a novel fluorescent probe, a photo memory, and a switching devise for photonics.magnified image

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Preparation of colored latex containing oil-soluble dyes with high dye content by mini-emulsion polymerization

Cited by 45 publications

References 8 publications

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

Facile Fabrication of Polymeric Ionic Liquid Grafted Porous Polymer Monolith for Mixed‐Mode High Performance Liquid Chromatography

Light‐Controlled On‐Off Switch of a Fluorescent Nanoparticle

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