Preparation of polyacrylate/paraffin microcapsules and its application in prolonged release of fragrance

Zhang, Yu; Song, Jia; Chen, Hongling

doi:10.1002/app.44136

Cited by 12 publications

(5 citation statements)

References 33 publications

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“…formaldehyde-free microcapsules, e.g. polyurea and polyacrylate microcapsules, , are still made from petroleum-based monomers and suffer from poor biodegradability and toxicity (Figure ).…”

Section: Introductionmentioning

confidence: 99%

Sustainable Chemistry Considerations for the Encapsulation of Volatile Compounds in Laundry-Type Applications

Bruyninckx

Dusselier

2019

ACS Sustainable Chem. Eng.

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Microencapsulation of volatile compounds in fabric care products has brought extra value in a variety of laundrytype applications, allowing clothes to release pleasant scents for weeks after their last wash with minimal amounts of fragrance used. Melamine−formaldehyde is the industry standard in this regard, while polyacrylate and polyurea shells are promising candidates for use in commercial laundry-type applications. Harsh storage conditions and demanding release characteristics have limited the number of viable shell wall materials and chemistries for these kinds of applications. This renders nano-and microencapsulation of volatile compounds for laundry-type applications one of the most challenging areas in the encapsulation field. The largest drawback of the current technology is the limited biodegradability of the produced microcapsules, e.g. when leaking via wastewater. This review summarizes the search toward viable, high-performant and sustainable alternatives for the current technology. First, various techniques to encapsulate volatile compounds in this context are overviewed. Recent relevant encapsulation reports using natural and synthetic shell walls are discussed, while controlled release data are included where possible. Finally, a perspective containing insights toward sustainability in the engineering of alternative capsule chemistries is offered.

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“…formaldehyde-free microcapsules, e.g. polyurea and polyacrylate microcapsules, , are still made from petroleum-based monomers and suffer from poor biodegradability and toxicity (Figure ).…”

Section: Introductionmentioning

confidence: 99%

Sustainable Chemistry Considerations for the Encapsulation of Volatile Compounds in Laundry-Type Applications

Bruyninckx

Dusselier

2019

ACS Sustainable Chem. Eng.

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“…The resulting microcapsules also showed excellent cargo retention with minimal loss over 3 months of exposure to air. [85] Hofmeister et al prepared pH-responsive nanocapsules containing 𝛼-pinene with encapsulation efficiencies of more than 90%. This was achieved using a mixture of MMA, BMA, MMA, and the cross-linker 1,4-butanediol dimethacrylate in a miniemulsion polymerization.…”

Section: Chemical Encapsulation Methodsmentioning

confidence: 99%

“…The resulting microcapsules also showed excellent cargo retention with minimal loss over 3 months of exposure to air. [ 85 ] Hofmeister et al. prepared pH‐responsive nanocapsules containing α ‐pinene with encapsulation efficiencies of more than 90%.…”

Section: Fragrance Encapsulationmentioning

confidence: 99%

Encapsulation of Fragrances in Micro‐ and Nano‐Capsules, Polymeric Micelles, and Polymersomes

Russell

Bruns

2023

Macromol. Rapid Commun.

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Fragrances are ubiquitously and extensively used in everyday life and several industrial applications, including perfumes, textiles, laundry formulations, hygiene household products, and food products. However, the intrinsic volatility of these small organic molecules leaves them particularly susceptible to fast depletion from a product or from the surface they have been applied to. Encapsulation is a very effective method to limit the loss of fragrance during their use and to sustain their release. This review gives an overview of the different materials and techniques used for the encapsulation of fragrances, scents, and aromas, as well as the methods used to characterize the resulting encapsulation systems, with a particular focus on cyclodextrins, polymer microcapsules, inorganic microcapsules, block copolymer micelles, and polymersomes for fragrance encapsulation, sustained release, and controlled release.

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“…Moreover, the addition of calcium chloride(CaCl2) improved the encapsulation efficiency of aroma. Yoon‐Yeo et al studied the encapsulation of aroma oil using gelatin and gum Arabic in complex coacervation to improve the appeal of frozen baked foods upon heating, in which Nile Red was applied as oil for series of characterization. Sari et al employed emulsion polymerization to manufacture microcapsules with n‐nonadecane and MMA as core and shell, respectively, which obtained the capsules with different encapsulation efficiency by adjusting the mass ratio of MMA and n‐nonadecane.…”

Section: Introductionmentioning

confidence: 99%

Preparation of aroma microcapsules with sodium alginate and tetradecylallyldimethylammonium bromide (TADAB) and its potential applications in cosmetics

Song

Chen

2017

Flavour & Fragrance J

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The formation of apple aroma microcapsules was achieved by sodium alginate (SA) and tetradecylallydimethylammonium bromide (TADAB) as shells based on complex coacervation‐emulsion polymerization. Alkyl alcohol polyoxyethylene ether was employed as emulsifier. Pentaerythritol tetraacrylate (PETRA) was used as a crosslinking agent and methyl methacrylate (MMA) was applied as comonomer to copolymerize with TADAB. The aroma microcapsules were characterized by scanning electron microscopy (SEM). Results showed that the aroma microcapsules prepared under optimal conditions were core‐shell structure. The aroma microcapsules were sphere‐like shape with particle size between 20 to 50 μm. FT‐IR analysis results showed that the electrostatic interactions and polymerization occurred assuredly. TG‐DTA study indicated that the thermal stability of the aroma microcapsules crosslinked with MMA shell was improved, and the thermal resistant temperature was up to 110°C. Moreover, the encapsulation efficiency of aroma microcapsules was measured by ultraviolet–visible near‐infrared spectrophotometer. In the surfactant solution, the release of aroma was quick during the first 8 hours, losing ca. 10.8% aroma encapsulated, however, there was no more else aroma dissolving out from the 9th hour. In open conditions, the encapsulation efficiency of the aroma microcapsules kept 66.57% after 48 hours, compared with the encapsulation efficiency going down alone if the microcapsules were milled.

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Preparation of polyacrylate/paraffin microcapsules and its application in prolonged release of fragrance

Cited by 12 publications

References 33 publications

Sustainable Chemistry Considerations for the Encapsulation of Volatile Compounds in Laundry-Type Applications

Sustainable Chemistry Considerations for the Encapsulation of Volatile Compounds in Laundry-Type Applications

Encapsulation of Fragrances in Micro‐ and Nano‐Capsules, Polymeric Micelles, and Polymersomes

Preparation of aroma microcapsules with sodium alginate and tetradecylallyldimethylammonium bromide (TADAB) and its potential applications in cosmetics

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