Properties of copper phthalocyanine microencapsulated in polystyrene by phase separation

Zhang, Tianyong; Fei, Xuening; Song, Jian; Zhou, Chunlong

doi:10.1016/s0143-7208(99)00047-9

Cited by 27 publications

(7 citation statements)

References 6 publications

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“…Throughout the past 10 years, one of the applications of the functional coatings which has been explored widely by the agricultural,3, 4 pharmaceutical,5–7 food,8, 9 and textile science and industry10–31 is microencapsulation technology. The process of surrounding micron‐sized particles of solids, droplets of liquids and gasses in an inert shell is defined as the microencapsulation process.…”

Section: Introductionmentioning

confidence: 99%

“…The developing application of microencapsulation in textiles is restricted to pigments,12, 13 dyes,14–29 fragrances,30 and phase‐change materials 31. Using of microencapsulation technology in textile has been limited because of two reasons: lack of awareness about this technology and being relatively expensive process.…”

Section: Introductionmentioning

confidence: 99%

“…Using of microencapsulation technology in textile has been limited because of two reasons: lack of awareness about this technology and being relatively expensive process. Microencapsulation of the pigments, such as microencapsulation of ultramarine12 and copper phthalocyanine13 has been previously reported. Microencapsulation of dyes, such as carbonless copy paper,14, 15 metal complex dyes in dyeing wool and wool blends16–21 and different class of dyes like disperse dyes,22–24 acidic dyes,25 and azo dyes26–28 are available.…”

Section: Introductionmentioning

confidence: 99%

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Microencapsulation of disperse dye particles with nano film coating through layer by layer technique

Zandi

Hashemi

Aminayi

et al. 2010

J of Applied Polymer Sci

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Throughout the past ten years, comprehensive understanding of fundamental and applied research has focused on functional coating and specifically on microencapsulaion. In this study, weak polycation poly(allylamine hydrochloride) and strong polyanion poly(sodium styrene sulfonate) were used for fabrication of nano film through layer by layer technique on the surface of disperse dye particles. Then micron-sized particles were surrounded by poly(urea formaldehyde) using in-situ polymerization. Chemical structure, surface morphology, and size distribution of these novel microcapsules were characterized by Fourier transform infrared spectrometry, differential scanning calorimetry, optical microscopy, and scanning electronic microscopy. Size and surface morphology of the microcapsules can be optimized by selecting proper weight ratio of urea to formaldehyde and core to shell material type, and amount of surfactant and agitation rate. This technology demonstrated good capability in several applications in textile industry, such as dying fabrics because of saving huge amount of water and showing slow-release property of dye without using dye assistant agents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microencapsulation of disperse dye particles with nano film coating through layer by layer technique

Zandi

Hashemi

Aminayi

et al. 2010

J of Applied Polymer Sci

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“…Solid microcapsules such as polystyrene microcapsules are known to have favorable mechanical strength and have been studied as the encapsulation support of polyelectrolyte solutions12, 13 and organic pigments,14 for example. However, there were no reports regarding the preparation and application of polystyrene microcapsules as a highly efficient immobilization support suitable for microbial cells.…”

Section: Introductionmentioning

confidence: 99%

Structural control of core/shell polystyrene microcapsule-immobilized microbial cells and their application to polymeric microbioreactors

Yoshida¹,

Mardriyati²,

Tenokuchi³

et al. 2003

J. Appl. Polym. Sci.

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Polystyrene microcapsules possessing a large single core and highly microporous wall were prepared as immobilization supports for microbial cells by a new method based on phase separation of polystyrene within a mixed organic solvent system in an oil-in-water (o/w) emulsion. The structures of core and micropore were controlled by changing the concentration of isooctane in the organic phase and the temperature of solvent evaporation. The immobilization of baker's yeast into the polystyrene microcapsules was carried out by entrapping the yeast into calcium alginate beads before encapsulating in the microcapsules and followed by removing the beads with HCl solution. The morphology of the microcapsules was observed by means of SEM, and the activity of the immobilized yeast was evaluated by using the microcapsules in ethanol fermentation. It was found that the formation of the core and wall pore was remarkably influenced by the isooctane concentration, and the diameter of the core was affected by the temperature of solvent evaporation. The yeast was successfully immobilized into the polystyrene microcapsules at a high density and a high catalyst activity by the proposed immobilization method. Furthermore, the polystyrene microcapsules exhibited a high operational stability in the repeated batchwise fermentation test.

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“…In addition, copper phthalocyanine was microencapsulated with polystyrene. The encapsulated pigment flowed more readily and was more easily dispersed …”

Section: Introductionmentioning

confidence: 99%

Influence of Microencapsulation on the Stability and Reactivity of 2,4,6-Triphenylpyrylium Tetrakis(pentafluorophenyl)gallate as a Cationic Photoinitiator

2002

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2,4,6-Triphenylpyrylium tetrakis(pentafluorophenyl)gallate (TPPGa) was synthesized and studied as a visible light cationic photoinitiator. TPPGa was encapsulated in polystyrene to increase thermal stability, and the microparticles obtained were characterized with scanning electron microscopy and laser scanning confocal microscopy. The properties of the microencapsulated initiator were investigated.

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Properties of copper phthalocyanine microencapsulated in polystyrene by phase separation

Cited by 27 publications

References 6 publications

Microencapsulation of disperse dye particles with nano film coating through layer by layer technique

Microencapsulation of disperse dye particles with nano film coating through layer by layer technique

Structural control of core/shell polystyrene microcapsule-immobilized microbial cells and their application to polymeric microbioreactors

Influence of Microencapsulation on the Stability and Reactivity of 2,4,6-Triphenylpyrylium Tetrakis(pentafluorophenyl)gallate as a Cationic Photoinitiator

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