Methods for microencapsulation of N-benzylmorpholine

Bukar, N. V.; Krasnobaeva, S. Yu.; Il’yushenko, E. V.; Avramenko, G. V.; Kienskaya, K. I.

doi:10.1134/s1070427208020225

Cited by 4 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AOT was chosen as surfactant to form reverse micelles. The cmc of AOT in hexane is 0.05 mM . Since PAN powder is insoluble in both water and hexane, lighter contaminants like dust particles are expected to be removed by frothing or by trapping them in micelles or reverse micelles.…”

Section: Resultsmentioning

confidence: 99%

Correlation between inhomogeneity in polyacrylonitrile spinning dopes and carbon fiber tensile strength

Raghavan

Gulgunje

Gupta

et al. 2018

Polymer Engineering & Sci

View full text Add to dashboard Cite

The nano-scale and micro-scale inhomogeneity of polyacrylonitrile (PAN) spinning dopes obtained from dynamic light scattering (DLS) experiment is correlated with the tensile strength of the resulting carbon fiber. The nanoscale inhomogeneity was estimated by calculating the diffusion coefficients from the slow relaxation mode of polymer solutions in DLS. The nanoscale inhomogeneity in the spinning dopes was found to be in the range of 1-45 nm. We also demonstrate mean of the count rate (MCR) obtained from DLS of PAN solution as a tool to detect the microscale inhomogeneity in the spinning dope for the first time. The MCR of spinning dopes varied from~10.0 to 77.5 kcps (kilo-counts per second). The tensile strength of carbon fibers from the precursor fiber spun from the spinning dopes in this study varied from 3 to 5.2 GPa. Correlation studies show that the microscale inhomogeneity in the spinning dope was a major contributor to the decrease in the tensile strength of carbon fibers in the range of 3-4.5 GPa. Contaminants causing microscale inhomogeneity in PAN powder were removed by using micelles, reverse micelles and frothing. The surfactant treated PAN polymer was characterized using a fourier transform infrared spectroscope, differential scanning calorimeter, and thermal gravimetic analyzer to demonstrate complete removal of surfactants. POLYM. ENG. SCI., 59:478-482, 2019.

show abstract

Section: Resultsmentioning

confidence: 99%

Correlation between inhomogeneity in polyacrylonitrile spinning dopes and carbon fiber tensile strength

Raghavan

Gulgunje

Gupta

et al. 2018

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…Microcapsules prepared by complex coacervation have been used in the pharmaceutical industry for: Control release, either for sustained or prolonged drug release Flavour masking – to mask the taste and unpleasant odour of some drugs in order to improve patient compliance Prevent the vapourisation of many volatile drugs Enhance the stability of formulations: increase the stability of a drug in the presence of light, heat and oxidising conditions, or transform liquid drug compounds into a free‐flowing powder Avoid undesirable incompatibilities and increase bioavailability Reduce toxicity and irritation of the gastrointestinal tract …”

Section: Applications Of Flavour and Essential Oil Microcapsulesmentioning

confidence: 99%

A review of the preparation and application of flavour and essential oils microcapsules based on complex coacervation technology

et al. 2013

View full text Add to dashboard Cite

This paper briefly introduces the preparation and application of flavour and essential oils microcapsules based on complex coacervation technology. The conventional encapsulating agents of oppositely charged proteins and polysaccharides that are used for microencapsulation of flavours and essential oils are reviewed along with the recent advances in complex coacervation methods. Proteins extracted from animal-derived products (gelatin, whey proteins, silk fibroin) and from vegetables (soy proteins, pea proteins), and polysaccharides such as gum Arabic, pectin, chitosan, agar, alginate, carrageenan and sodium carboxymethyl cellulose are described in depth. In recent decades, flavour and essential oils microcapsules have found numerous potential practical applications in food, textiles, agriculturals and pharmaceuticals. In this paper, the different coating materials and their application are discussed in detail. Consequently, the information obtained allows criteria to be established for selecting a method for the preparation of microcapsules according to their advantages, limitations and behaviours as carriers of flavours and essential oils.

show abstract

“…), N ‐benzylmorpholine (Bukar et al . ), indomethacin (Daniels and Mittermaier ), limonene and menthol powder (Leclercq et al . ), capsaicin (Xing et al .…”

Section: Introductionmentioning

confidence: 99%

“…A variety of materials have been packaged by micro-encapsulation. GE/GA-based microcapsules have been studied using several core materials such as vetiver oil (Prata et al 2008), shikonin (Huang et al 2007), camphor oil (Chang et al 2006), violet, lemon and peach perfumes (Ovez and Yuksel 2002), orange oil (Vahapzadeh et al 2004), paraffin oil (Mayya et al 2003;Onder et al 2008), N-benzylmorpholine (Bukar et al 2008), indomethacin (Daniels and Mittermaier 1995), limonene and menthol powder (Leclercq et al 2009), capsaicin (Xing et al 2004) and flavor oil (Yeo et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Micro-encapsulation of ozonated red pepper seed oil with antimicrobial activity and application to nonwoven fabric

Özyıldız

Karagönlü

Başal

et al. 2013

Lett Appl Microbiol

View full text Add to dashboard Cite

Significance and Impact of the Study: This is the first report on the antimicrobial action of RPSO after ozonation process. These findings suggest that ozonated red pepper seed oil (ORPSO) may be a useful and effective antimicrobial agent against the micro-organisms with antibiotic resistance. Therefore, as a natural product, RPSO represents a sustainable alternative to the use of synthetic antimicrobial agents. To our knowledge, this is also the first time that ORPSO has been micro-encapsulated for the preparation of functional textile material with significant antimicrobial activity.

show abstract

Methods for microencapsulation of N-benzylmorpholine

Cited by 4 publications

References 3 publications

Correlation between inhomogeneity in polyacrylonitrile spinning dopes and carbon fiber tensile strength

Correlation between inhomogeneity in polyacrylonitrile spinning dopes and carbon fiber tensile strength

A review of the preparation and application of flavour and essential oils microcapsules based on complex coacervation technology

Micro-encapsulation of ozonated red pepper seed oil with antimicrobial activity and application to nonwoven fabric

Contact Info

Product

Resources

About