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Journal articles on the topic 'Cross-linked poly-4-vinylpyridine'

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Published: 5 June 2025

Last updated: 15 July 2025

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1

Suleymanova, R. H., N. А. Zeynalov, L. N. Qulubayova, А. R. Guliyeva, U. A. Mammadova, and E. H. Babayev. "METAL-POLYMER CATALYSTS IN THE REACTION OF BENZENE HYDROGENATION." Azerbaijan Chemical Journal, no. 3 (September 22, 2022): 93–98. http://dx.doi.org/10.32737/0005-2531-2022-3-93-98.

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Metal-polymer catalysts in the reaction of hydrogenation of benzene have been studied. Salts of nickel, palladium, and H2PtCl6·6H2O were used as metals, which were deposited on polymer carriers, in particular, on polyethylenepolyamine, poly-2-methyl-5-vinylpyridine, styrene copolymer with maleic anhyd¬ride, and poly-4-vinylpyridine. A number of polymer complexes were also synthesized, tuned to benzene hydrogenation products and cross-linked with N,N'-methylenebisacrylamide, a crosslinking agent. The temperature of the hydrogenation reaction was controlled within 20–600C. Hydrogenation was carried out in an autoclave. It has been established that complexes based on platinum and poly-4-vinylpyridine lead to a high yield of the product of incomplete hydrogenation of benzene, cyclohexene. Also, it has been established that the Pt-poly-2-methyl-5-vinylpyridine complex tuned to benzene and cyclohexene exhibits a higher catalytic activity

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2

Draye, M., M. Lemaire, R. Chevillotte, et al. "Use of a Cross-Linked Poly(4-Vinylpyridine) for Nuclear Waste Treatment." Separation Science and Technology 30, no. 7-9 (1995): 1245–57. http://dx.doi.org/10.1080/01496399508010344.

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3

Domb, A., and Y. Avny. "Reduction of Carbonyl Compounds by Cross-Linked Poly(4-vinylpyridine)-Borane in Acidic Media." Journal of Macromolecular Science: Part A - Chemistry 22, no. 2 (1985): 183–201. http://dx.doi.org/10.1080/00222338508063305.

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4

KOYAKUMARU, Takatoshi, Kenzou TABUCHI, and Mitsuo HIGUCHIM. "Cross-linked Poly(4-vinylpyridine)-Bromine Complexes as Preserving Agent for Fruit and Vegetables." NIPPON KAGAKU KAISHI, no. 11 (1997): 790–98. http://dx.doi.org/10.1246/nikkashi.1997.790.

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5

TAGIEV, D., U. MAMMADOVA, A. ISAZADE, et al. "IMMOBILIZATION OF A QUARTERIZED POLYMERWITH IMMOBILIZED TRANSITION METAL IONS." Digest Journal of Nanomaterials and Biostructures 15, no. 1 (2020): 275–80. http://dx.doi.org/10.15251/djnb.2020.151.275.

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Poly-4-vinylpyridine was almost quantitatively quaternized with benzyl chloride in an aqueous ethanol solution, followed by crosslinking before and after immobilization with transition metal ions (Ni, Mn). The obtained samples were studied by physicochemical methods (scanning electron microscope (SEM), x-ray phase (XPA), infrared spectroscopy (IR) analysis. The aim is to use quaternized, cross-linked and immobilized samples as an effective sorbents and catalysts in many chemical processes.

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6

SUGII, Atsushi, Naotake OGAWA, Kumiko HARADA, and Koichi NISHIMURA. "Metal sorption of macroreticular poly(4-vinylpyridine) resins cross-linked with oligo(ethylene glycol dimethacrylates)." Analytical Sciences 4, no. 4 (1988): 399–402. http://dx.doi.org/10.2116/analsci.4.399.

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7

Fujii, Syuji, Steven P. Armes, Bernard P. Binks, and Ryo Murakami. "Stimulus-Responsive Particulate Emulsifiers Based on Lightly Cross-Linked Poly(4-vinylpyridine)−Silica Nanocomposite Microgels." Langmuir 22, no. 16 (2006): 6818–25. http://dx.doi.org/10.1021/la060349l.

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8

Lee, Byoung Se, Suresh Mahajan, and Kim D. Janda. "Cross-linked poly(4-vinylpyridine/styrene) copolymers as a support for immobilization of ytterbium triflate." Tetrahedron 61, no. 12 (2005): 3081–86. http://dx.doi.org/10.1016/j.tet.2005.01.068.

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9

Bauer, Anna M., Erin E. Ramey, Kjersti G. Oberle, Gretchen A. Fata, Chloe D. Hutchison, and Christopher R. Turlington. "Cross-linked poly(4-vinylpyridine-N-oxide) as a polymer-supported oxygen atom transfer reagent." Tetrahedron Letters 60, no. 43 (2019): 151193. http://dx.doi.org/10.1016/j.tetlet.2019.151193.

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10

Douyère, Grégory, Loïc Leclercq, and Véronique Nardello-Rataj. "Cross-linked poly(4‐vinylpyridine) particles for pH- and ionic strength-responsive “on–off” Pickering emulsions." Colloids and Surfaces A: Physicochemical and Engineering Aspects 631 (December 2021): 127705. http://dx.doi.org/10.1016/j.colsurfa.2021.127705.

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11

Kawabata, Nariyoshi, Yuya Tsuchida, Yutaka Nakamori, and Mitsunobu Kitamura. "Adsorption of phenol on clustered micro-sphere porous beads made of cross-linked poly-4-vinylpyridine." Reactive and Functional Polymers 66, no. 12 (2006): 1641–48. http://dx.doi.org/10.1016/j.reactfunctpolym.2006.06.008.

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12

Lee, Jung Min, Prakash J. Saikia, Kangseok Lee, and Soonja Choe. "Mechanism of the Formation and Growth of the Cross-Linked Poly(divinylbenzene) Spheres Using Poly(styrene-block-4-vinylpyridine)." Macromolecules 41, no. 6 (2008): 2037–44. http://dx.doi.org/10.1021/ma071719v.

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13

Jumadilov, Talkybek, Ruslan Kondaurov, Aldan Imangazy, Nurbala Myrzakhmetova, and Indira Saparbekova. "Phenomenon of Remote Interaction and Sorption Ability of Rare Cross-linked Hydrogels of Polymethacrylic Acid and Poly-4-vinylpyridine in Relation to Erbium Ions." Chemistry & Chemical Technology 13, no. 4 (2019): 451–58. http://dx.doi.org/10.23939/chcht13.04.451.

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14

Shih, Ying, Annamalai Senthil Kumar, Jyh-Myng Zen, and Jaw-Cherng Hsu. "Detection of Hidden Mercury in Cosmetic Products by Partially Cross-Linked Poly(4-vinylpyridine)/Screen-Printed Electrode." Bulletin of the Chemical Society of Japan 78, no. 12 (2005): 2130–34. http://dx.doi.org/10.1246/bcsj.78.2130.

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15

Nitin, R. Patil, W. Kshirsagar Siddheshwar, and D. Samant Shriniwas. "Morita-Baylis-Hillman reaction of benzaldehydes with methyl vinyl ketone at ambient temperature using cross-linked poly-4-vinylpyridine as a solid heterogeneous base catalyst in the presence of hydrogen peroxide." Journal of Indian Chemical Society Vol. 90, Oct 2013 (2013): 1703–12. https://doi.org/10.5281/zenodo.5791836.

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Department of Chemistry, Institute of Chemical Technology, N. M. Parekh Road, Matunga, Mumbai-400 019, India <em>E-mail</em> : samantsd@yahoo.com    Fax : 91-22-24145614 <em>Manuscript received 25 June 2013, accepted 26 June 2013</em> Morita-Baylis-Hillman (MBH) reaction of various aromatic aldehydes and methyl vinyl ketone (MVK) is effectively catalyzed by cross-linked poly-4-vinylpyridine (CPVP), a solid heterogeneous polymer-based base catalyst, in the presence of hydrogen peroxide in an aqueous <em>tert-</em>BuOH medium at ambient temperature. The reaction in DMF gives a mixture of MBH adduct and the adduct of the reaction of MBH adduct with MVK. The reaction in aqueous <em>tert</em>-butanol gives selectively the MBH adduct in high yield and the catalyst is recyclable. This is the first report of the use of this combination of a solid polymeric base (CPVP) with hydrogen peroxide as a catalyst for MBH reaction.

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16

Kumaresan, R., K. N. Sabharwal, T. G. Srinivasan, P. R. Vasudeva Rao, and Gunesh Dhekane. "Studies on the Sorption of Palladium using Cross‐Linked Poly (4‐Vinylpyridine‐Divinylbenzene) Resins in Nitric Acid Medium." Solvent Extraction and Ion Exchange 26, no. 5 (2008): 643–71. http://dx.doi.org/10.1080/07366290802301465.

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17

Qin, Qi-Hu, Hui Na, Chunyu Zhang, Qizhou Yu, Xue-Quan Zhang, and He-Xin Zhang. "Preparation of Au Nanoparticles Immobilized Cross-Linked Poly(4-vinylpyridine) Nanofibers and Their Catalytic Application for the Reduction of 4-Nitrophenol." Journal of Nanoscience and Nanotechnology 15, no. 5 (2015): 3909–12. http://dx.doi.org/10.1166/jnn.2015.9515.

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18

Jumadilov, Talkybek, Zharylkasyn Abilov, Juozas Grazulevicius, et al. "MUTUAL ACTIVATION AND SORPTION ABILITY OF RARE CROSS-LINKED NETWORKS IN INTERGEL SYSTEM BASED ON POLYMETHACRYLIC ACID AND POLY-4-VINYLPYRIDINE HYDROGELS IN RELATION TO LANTHANUM IONS." Chemistry & Chemical Technology 11, no. 2 (2017): 188–94. http://dx.doi.org/10.23939/chcht11.02.188.

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19

Fusini, Graziano, Fabio Rizzo, Gaetano Angelici, Emanuela Pitzalis, Claudio Evangelisti, and Adriano Carpita. "Polyvinylpyridine-Supported Palladium Nanoparticles: An Efficient Catalyst for Suzuki–Miyaura Coupling Reactions." Catalysts 10, no. 3 (2020): 330. http://dx.doi.org/10.3390/catal10030330.

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Palladium nanoparticles (Pd NPs) synthesized by the metal vapor synthesis technique were supported on poly(4-vinylpyridine) 2% cross-linked with divinylbenzene (Pd/PVPy). Transmission electron microscopy revealed the presence of small metal nanoparticles (dm = 2.9 nm) highly dispersed on the PVPy. The Pd/PVPy system showed high catalytic efficiency in Suzuki-Miyaura carbon–carbon coupling reactions of both non-activated and deactivated aromatic iodides and bromides with aryl boronic acids, carried out under an air atmosphere. The high turnover of the catalyst and the ability of the PVPy resin to retain active Pd species are highlighted. By comparing the catalytic performances of Pd/PVPy with those observed by using commercially available Pd-based supported catalysts, the reported system showed higher selectivity and lower Pd leaching.

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20

Xu, Donghua, Bradley D. Olsen, and Stephen L. Craig. "Relaxation dynamics of supramolecular polymer networks with mixed cross-linkers." Journal of Rheology 66, no. 6 (2022): 1193–201. http://dx.doi.org/10.1122/8.0000421.

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The linear rheological properties of supramolecular polymer networks formed by mixtures of two different bis-Pd(II) cross-linkers with poly(4-vinylpyridine) in dimethyl sulfoxide are examined. The changes in storage and loss moduli of the networks with mixed cross-linkers are compared to those of samples with a single type of cross-linkers. While the plateau moduli, and presumably network topology, of the networks remain equal regardless of the cross-link distribution, the relaxation time contributed by the faster cross-linkers is increased (by a factor of about 1.5 for the specific samples used in this work) by the presence of the slower cross-linkers, while the reverse influences are not significant. This effect can be explained by the fact that a certain fraction of the elastically effective strands cross-linked with fast cross-linkers is pinned on one end by slow cross-linkers, reducing by half the rate of fast chain relaxation. This effect is anticipated to be general for gels with two well-separated relaxation times.

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21

Zarchi, Mohammad Ali Karimi, and Nahid Ebrahimi. "An Efficient and Simple Method for Diazotization-Thiocyanation of Aryl Amine using Cross-Linked Poly (4-Vinylpyridine) Supported Thiocyanate Ion." Phosphorus, Sulfur, and Silicon and the Related Elements 187, no. 10 (2012): 1226–35. http://dx.doi.org/10.1080/10426507.2012.681407.

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22

Ali, Mohammad, Karimi Zarchi, and Ali Tarabsaz. "A versatile and regioselective synthesis of vicinal azidoalcohols using cross-linked poly(4-vinylpyridine) supported azide ion under solvent-free conditions." Chinese Journal of Polymer Science 31, no. 12 (2013): 1660–69. http://dx.doi.org/10.1007/s10118-013-1362-0.

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23

Cao, Liqin, Yaodong Hu, Lijuan Zhang, Chuang Ma, Xiaohu Wang, and Jide Wang. "Synthesis of cross-linked poly(4-vinylpyridine) and its copolymer microgels using supercritical carbon dioxide: Application in the adsorption of copper(II)." Journal of Supercritical Fluids 58, no. 2 (2011): 233–38. http://dx.doi.org/10.1016/j.supflu.2011.05.013.

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24

Tian, Kesong, Ruifei Li, Haiyan Wang, et al. "Monomer Protonation-Dependent Surface Polymerization to Achieve One-Step Grafting Cross-Linked Poly(4-Vinylpyridine) Onto Core-Shell Fe3 O4 @SiO2 Nanoparticles." Macromolecular Rapid Communications 38, no. 22 (2017): 1700494. http://dx.doi.org/10.1002/marc.201700494.

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25

Karimi Zarchi, Mohammad Ali, and Fatemeh Nazem. "Cross-linked poly (4-vinylpyridine) supported azide ion as a versatile and recyclable polymeric reagent for synthesis of 1-substituted-1H-1,2,3,4-tetrazoles." Journal of the Iranian Chemical Society 11, no. 1 (2013): 91–99. http://dx.doi.org/10.1007/s13738-013-0279-4.

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26

Lee, Sang-Hyeup, and Santosh T. Kadam. "Cross-linked poly(4-vinylpyridine/styrene) copolymer-supported bismuth(III) triflate: an efficient heterogeneous catalyst for silylation of alcohols and phenols with HMDS." Applied Organometallic Chemistry 25, no. 8 (2011): 608–15. http://dx.doi.org/10.1002/aoc.1809.

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27

Charoensumran, Preeyarad, and Hiroharu Ajiro. "Cationic Moieties in Polystyrene Gels Swollen with d-Limonene Improved Transdermal Delivery System." Polymers 10, no. 11 (2018): 1200. http://dx.doi.org/10.3390/polym10111200.

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d-limonene, a terpene and natural compound, has been found to be an excellent penetration enhancer for transdermal drug delivery (TDD). It hence has been incorporated within various transdermal formulations. Herein, we report the application of polystyrene gel swollen with d-limonene and its derivatives for TDD. Poly(styrene-co-divinylbenzene) (PS gel), poly(styrene-co-divinylbenzene-co-4-vinylpyridine) (PS-4VP) gel and poly(styrene-co-divinylbenzene-co-(vinylbenzyl) trimethylammonium chloride) (PS-VBAC gel) were employed as chemical gels to improve the stability of the TDD substrates. The drug permeation properties from the PS gels swollen in limonene were examined, regarding the effect of its network density as well as their rheological properties. The lowest density of the network showed the highest steady flux of the permeation at 43.7 ± 0.3 μg/cm2. FT-IR spectra were confirmed for PS-4VP and PS-VBAC, bearing cationic moieties and they could control the release of ibuprofen by the electrostatic interaction at the interface of organogel and skin. The steady state flux of skin permeation got low values from 55.2 ± 0.8 to 11.6 ± 2.0 μg/cm2, when the cationic moieties were increased. Moreover, the chemical network of PS gel swollen in limonene showed high mechanical stability illustrated by elastic modulus (G’) of about 98 kPa for 10% cross-linked PS gel. The developed PS gels swollen in limonene show highly promising results, suggesting their possible application in TDD.

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28

Karimi Zarchi, Mohammad Ali, and Ali Tarabsaz. "Ring Opening of Epoxides by Using Cross-Linked Poly(4-Vinylpyridine)-Supported Thiocyanate in the Presence of Polymer-Supported Sulfuric Acid Under Solvent-Free Conditions." Phosphorus, Sulfur, and Silicon and the Related Elements 190, no. 4 (2015): 550–60. http://dx.doi.org/10.1080/10426507.2014.887079.

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29

Lee, Sang-Hyeup, and Santosh T. Kadam. "ChemInform Abstract: Cross-Linked Poly(4-vinylpyridine/styrene) Copolymer-Supported Bismuth(III) Triflate: An Efficient Heterogeneous Catalyst for Silylation of Alcohols and Phenols with HMDS." ChemInform 42, no. 52 (2011): no. http://dx.doi.org/10.1002/chin.201152033.

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30

Ali, Mohammad, Karimi Zarchi, and R. Banihashemi. "Green and Efficient Method for Thiocyanation of Aromatic and Heteroaromatic Compounds Using Cross-linked Poly (4-Vinylpyridine) Supported Thiocyanate Ion as Versatile Reagent and Oxone as Mild Oxidant." Phosphorus, Sulfur, and Silicon and the Related Elements 189, no. 9 (2014): 1378–90. http://dx.doi.org/10.1080/10426507.2013.865123.

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31

Karimi Zarchi, Mohammad Ali, and Nahid Ebrahimi. "Facile and one-pot synthesis of aryl azides via diazotization of aromatic amine using cross-linked poly(4-vinylpyridine)-supported nitrite ion and azidation by a Sandmeyer-type reaction." Iranian Polymer Journal 21, no. 9 (2012): 591–99. http://dx.doi.org/10.1007/s13726-012-0063-9.

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32

Zarchi, M. A. Karimi, and R. Banihashemi. "An efficient and regioselective thiocyanation of aromatic and heteroaromatic compounds using cross-linked poly (4-vinylpyridine)-supported thiocyanate as a versatile reagent and potassium peroxydisulfate as a strong oxidizing agent." Journal of Sulfur Chemistry 35, no. 4 (2014): 458–69. http://dx.doi.org/10.1080/17415993.2014.917375.

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33

Karimi Zarchi, Mohammad Ali, and Fatemeh Nazem. "One-pot three-component synthesis of 1,4-disubstituted 1H-1,2,3-triazoles using green and recyclable cross-linked poly(4-vinylpyridine)-supported copper sulfate/sodium ascorbate in water/t-BuOH system." Journal of the Iranian Chemical Society 11, no. 6 (2014): 1731–42. http://dx.doi.org/10.1007/s13738-014-0446-2.

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34

Patil, Nitin R., Siddheshwar W. Kshirsagar, and Shriniwas D. Samant. "ChemInform Abstract: Morita-Baylis-Hillman Reaction of Benzaldehydes with Methyl Vinyl Ketone at Ambient Temperature Using Cross-Linked Poly-4-vinylpyridine as a Solid Heterogeneous Base Catalyst in the Presence of Hydrogen Peroxide." ChemInform 45, no. 20 (2014): no. http://dx.doi.org/10.1002/chin.201420070.

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35

Okubo, Tsuneo, Syuji Fujii, Kodai Aono, Yoshinobu Nakamura, and Akira Tsuchida. "Colloidal crystallization of cationic gel spheres of lightly cross-linked poly(2-vinylpyridine) in the deionized aqueous suspension." Colloid and Polymer Science 291, no. 5 (2012): 1201–10. http://dx.doi.org/10.1007/s00396-012-2850-4.

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36

Kim, Min Sung. "Architectures of Bilayered Gold Nanoparticles on UV Cross-Linked Poly(4-vinylpyridine) Thin Films." Journal of Nanoscience and Nanotechnology 9, no. 12 (2009). http://dx.doi.org/10.1166/jnn.2009.1629.

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37

Korb, J. P., and C. Chachaty. "Fractal Structure of A Porous Cross-Linked Polymer Resin and Dynamical Behavior of Adsorbed Solvents." MRS Proceedings 367 (1994). http://dx.doi.org/10.1557/proc-367-215.

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AbstractThe fractal distribution of pore sizes in a poly-4-vinylpyridine resin cross-linked by diamagnetic (Cd2+) or paramagnetic (VO2+, Cu2+) divalent metallic ions has been characterized by small-angle-X-ray scattering, nuclear paramagnetic relaxation and proton-pulsed-field gradient. These complementary techniques show a continuity in the fractal distribution of pore sizes through the same surface fractal dimension, Df = 2.6, over four orders of magnitude between 3 nm to 50 μm. Electron spin resonance yields a direct estimate of the overall fraction of solvent into the adsorption shell of the cross-linked polymer network as well as the dynamics and local viscosity of the solvent in this disordered material.

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38

Lee, Byoung Se, Suresh Mahajan, and Kim D. Janda. "Cross-Linked Poly(4-vinylpyridine/styrene) Copolymers as a Support for Immobilization of Ytterbium Triflate." ChemInform 36, no. 31 (2005). http://dx.doi.org/10.1002/chin.200531026.

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39

Korb, J. P., and C. Chachaty. "Selective Formation of Radicals at Polymer-Solvent Interface. A Direct Determination of Solvent Penetration into a Porous Network." MRS Proceedings 248 (1991). http://dx.doi.org/10.1557/proc-248-447.

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AbstractThis work shows that, in studies on porous disordered organic material such as cross-linked resin of poly(4- vinylpyridine, one has to consider a possible interfacial adsorption of solvents. We propose the nuclear relaxation associated with ESR of y-ray induced radicals as an efficient method to estimate the extent of solvent penetration into the interface of the polymer network. This method is however limited to the case where free radicals resulting from solvent-substrate interactions can be selectively generated at interfaces.

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40

Zhao, Beijia, Di Ke, Zhejing Zhang, et al. "Poly(4-vinylpyridine) Based Semi-Interpenetrating Cross-Linked High Temperature Proton Exchange Membranes for Fuel Cells." ACS Applied Polymer Materials, May 9, 2024. http://dx.doi.org/10.1021/acsapm.4c00040.

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41

Abomuti, May Abdullah. "Chiral acidic molecularly imprinted polymer for enantio‐separation of norepinephrine racemate." Chirality 36, no. 2 (2024). http://dx.doi.org/10.1002/chir.23645.

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AbstractWe are looking into how well a copolymeric material made of poly (maleic acid–co‐4‐vinylpyridine) cross‐linked with divinylbenzene can separate L‐norepinephrine (L‐NEP) from (±)‐NEP. The initial step in this direction was the synthesis and subsequent analysis of L‐NEP‐maleimide chiral derivative. A 4‐vinylpyridine/divinylbenzene combination was copolymerized with the resultant chiral maleimide. After heating the polymer materials in a high‐alkaline environment to breakdown the connecting imide bonds, they were acidified in an HCl solution to eliminate the incorporated L‐NEP species. Fourier transform infrared spectroscopy (FTIR) and a scanning electron microscope were used to examine the imprinted L‐NEP‐imprinted materials. The manufactured L‐NEP‐imprinted materials exhibited selectivity characteristics that were over 11 times greater for L‐NEP than D‐norepinephrine. The highest capacity observed in Langmuir adsorption studies was 170 mg/g at a pH of 7. After optical separation using a column technique, it was determined that the enantiomeric excess levels of D‐norepinephrine and L‐NEP in the first feeding and subsequent recovery solutions were 95% and 81%, respectively.

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42

Alotaibi, Fatimah A. "Enantioselective separation of (±)‐epinephrine by chiral acidic molecularly imprinted polymer." Polymer International, April 3, 2024. http://dx.doi.org/10.1002/pi.6638.

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AbstractIn this study, we look into how poly(4‐styrenesulfonic acid‐co‐4‐vinylpyridine) cross‐linked with divinylbenzene can be used as a copolymeric material to effectively recognize L‐epinephrine (L‐EP) and chirally separate the (±)‐EP. It was first possible to synthesize and analyze L‐EP‐styrene‐4‐sulfonamide (L‐EP‐SSA). The resulting chiral sulfonamide was used to copolymerize with a 4‐vinylpyridine/divinylbenzene mixture. The integrated L‐EP species were removed by heating the polymer materials under strong alkaline conditions to degrade the sulfonamide links, followed by acidification in HCl solution. The imprinted L‐EP‐IP materials were analyzed using FTIR and a scanning electron microscope (SEM). The produced L‐EP‐IP displayed selectivity characteristics indicative of an affinity for L‐EP almost eleven times higher than those for D‐EP. At a pH of 7, Langmuir adsorption experiments demonstrated a maximal capacity of 165 mg/g. Following optical separation by means of a column method, enantiomeric excess levels of L‐ and D‐EP in the initial feeding and next recovering solutions were calculated to be 93% and 80%, respectively.This article is protected by copyright. All rights reserved.

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43

Alharbi, Hussam Y., Majed S. Aljohani, and M. Monier. "Designing of molecularly imprinted polymer with carboxylic acid functionality for chiral separation of (±)‐3,4‐methylenedioxymethamphetamine." Polymer International, August 28, 2023. http://dx.doi.org/10.1002/pi.6570.

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AbstractIn this work, we discuss the development of a long‐lasting enantioselective material for the effective enantio‐recognition of S‐3,4‐methylenedioxymethamphetamine (S‐MDMA) and chiral separation of the (±)‐MDMA racemate using a cross‐linked poly(acrylic acid‐4‐vinylpyridine) copolymer. The first step was the synthesis and characterization of an acryloyl‐S‐MDMA (Ac‐S‐MDMA) amide. After that, the free radical initiator AIBN was used to copolymerize the synthesized chiral amide with 4‐vinylpyridine and divinylbenzene. The incorporated S‐MDMA species were extracted from the polymeric particles by heating them with sodium hydroxide, followed by rinsing with hydrochloric acid. This developed the molecularly imprinted S‐MDMA‐IP particles, which were visualized with a scanning electron microscope (SEM) and FTIR spectra. The selectivity parameters indicated a higher affinity of the fabricated S‐MDMA‐IP toward S‐MDMA, around ten‐fold higher than that related to R‐MDMA. Results from Langmuir adsorption experiments at pH 6 demonstrated a maximal capacity of 142 mg/g. In addition, the values of enantiomeric excess were found to be 94.5% and 79.4% for R‐ and S‐MDMA in the loading and eluant solutions, respectively, after optical separation was done using the column technique.This article is protected by copyright. All rights reserved.

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44

"Applications of Cross-linked Poly(4-vinylpyridine/styrene) Copolymer supported Ytterbium(III) Triflate in Mannich-type Reaction:Three Component One-pot Synthesis of β-Aminoketones". Bulletin of the Korean Chemical Society 30, № 3 (2009): 551–55. http://dx.doi.org/10.5012/bkcs.2009.30.3.551.

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Lee, Sang-Hyeup, та Byoung Se Lee. "ChemInform Abstract: Applications of Cross-Linked Poly(4-vinylpyridine/styrene) Copolymer-Supported Ytterbium(III) Triflate in Mannich-Type Reaction: Three Component One-Pot Synthesis of β-Aminoketones." ChemInform 40, № 31 (2009). http://dx.doi.org/10.1002/chin.200931091.

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Karimi Zarchi, Mohammad Ali, та Ali Tarabsaz. "Versatile and efficient method for synthesis of β-halohydrins via regioselective ring opening reaction of epoxides using cross-linked poly (4-vinylpyridine) supported HCl and HBr under solvent-free conditions". Journal of Polymer Research 20, № 8 (2013). http://dx.doi.org/10.1007/s10965-013-0208-3.

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