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Incorporating different vegetable oils into an aqueous dispersion of hybrid organic nanoparticles

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Production of imidized styrene-maleic anhydride (SMI) nanoparticles and surface interactions with different substrates
Abstract
Different vegetable oils including soy oil, high-oleic sunflower oil, corn oil, castor oil (CO), rapeseed oil, and hydrogenated CO were added to the imidization reaction of poly(styrene-maleic anhydride) or SMA, with ammonium hydroxide in aqueous medium. The oils favorably reduce viscosity during ammonolysis of the anhydride moieties and increase the maximum solid content of the dispersed imidized SMA to at least 50 wt%, compared to a maximum of 35 wt% for pure imidized SMA. The viscosity of imidized SMA with polyunsaturated oils was generally larger than for monosaturated oils, but it was highest for COs due to high contents of hydroxyl groups. Depending on the oil reactivity, homogeneous or core-shell nanoparticles with 20-60 nm diameters formed. The interactions of oil and organic phase were studied by Fourier-transform infrared spectroscopy, indicating qualitative variances between different oils, the fraction imidized SMA and remaining fraction of ammonolyzed SMA without leakage of oil upon diluting the dispersion and precipitation at low pH. A quantitative analysis with calculation of imide contents, amounts of reacted oil and chemical interactions was made by Fourier-transform-Raman spectroscopy suggesting that most interactions take place around the unsaturated oil moieties and ammonolyzed anhydride.
Keywords
PHASE-CHANGE MATERIAL, VIRGIN OLIVE OIL, THERMAL-ENERGY STORAGE, STYRENE-MALEIC ANHYDRIDE, TRANSFORM RAMAN-SPECTROSCOPY, MINIEMULSION POLYMERIZATION, INTERFACIAL POLYCONDENSATION, RELEASE BEHAVIOR, BLOCK-COPOLYMER, FISH-OIL, Nanoparticles, Core-shell, Encapsulation, Copolymer, Vegetable oil

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Citation

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Chicago
Samyn, Pieter, Gustaaf Schoukens, Dirk Stanssens, Leo Vonck, and Henk Van den Abbeele. 2012. “Incorporating Different Vegetable Oils into an Aqueous Dispersion of Hybrid Organic Nanoparticles.” Journal of Nanoparticle Research 14 (8): 1–24.
APA
Samyn, Pieter, Schoukens, G., Stanssens, D., Vonck, L., & Van den Abbeele, H. (2012). Incorporating different vegetable oils into an aqueous dispersion of hybrid organic nanoparticles. JOURNAL OF NANOPARTICLE RESEARCH, 14(8), 1–24.
Vancouver
1.
Samyn P, Schoukens G, Stanssens D, Vonck L, Van den Abbeele H. Incorporating different vegetable oils into an aqueous dispersion of hybrid organic nanoparticles. JOURNAL OF NANOPARTICLE RESEARCH. Springer; 2012;14(8):1–24.
MLA
Samyn, Pieter, Gustaaf Schoukens, Dirk Stanssens, et al. “Incorporating Different Vegetable Oils into an Aqueous Dispersion of Hybrid Organic Nanoparticles.” JOURNAL OF NANOPARTICLE RESEARCH 14.8 (2012): 1–24. Print.
@article{3228584,
  abstract     = {Different vegetable oils including soy oil, high-oleic sunflower oil, corn oil, castor oil (CO), rapeseed oil, and hydrogenated CO were added to the imidization reaction of poly(styrene-maleic anhydride) or SMA, with ammonium hydroxide in aqueous medium. The oils favorably reduce viscosity during ammonolysis of the anhydride moieties and increase the maximum solid content of the dispersed imidized SMA to at least 50 wt\%, compared to a maximum of 35 wt\% for pure imidized SMA. The viscosity of imidized SMA with polyunsaturated oils was generally larger than for monosaturated oils, but it was highest for COs due to high contents of hydroxyl groups. Depending on the oil reactivity, homogeneous or core-shell nanoparticles with 20-60 nm diameters formed. The interactions of oil and organic phase were studied by Fourier-transform infrared spectroscopy, indicating qualitative variances between different oils, the fraction imidized SMA and remaining fraction of ammonolyzed SMA without leakage of oil upon diluting the dispersion and precipitation at low pH. A quantitative analysis with calculation of imide contents, amounts of reacted oil and chemical interactions was made by Fourier-transform-Raman spectroscopy suggesting that most interactions take place around the unsaturated oil moieties and ammonolyzed anhydride.},
  articleno    = {1075},
  author       = {Samyn, Pieter and Schoukens, Gustaaf and Stanssens, Dirk and Vonck, Leo and Van den Abbeele, Henk},
  issn         = {1388-0764},
  journal      = {JOURNAL OF NANOPARTICLE RESEARCH},
  keyword      = {PHASE-CHANGE MATERIAL,VIRGIN OLIVE OIL,THERMAL-ENERGY STORAGE,STYRENE-MALEIC ANHYDRIDE,TRANSFORM RAMAN-SPECTROSCOPY,MINIEMULSION POLYMERIZATION,INTERFACIAL POLYCONDENSATION,RELEASE BEHAVIOR,BLOCK-COPOLYMER,FISH-OIL,Nanoparticles,Core-shell,Encapsulation,Copolymer,Vegetable oil},
  language     = {eng},
  number       = {8},
  pages        = {1075:1--1075:24},
  publisher    = {Springer},
  title        = {Incorporating different vegetable oils into an aqueous dispersion of hybrid organic nanoparticles},
  url          = {http://dx.doi.org/10.1007/s11051-012-1075-2},
  volume       = {14},
  year         = {2012},
}

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