Surface sulphonated highly crosslinked styrene‐divinylbenzene copolymers

Kolarz, Bożena N.; Trochimczuk, Andrzej W.; Wojaczyńska, Maria

doi:10.1002/apmc.1988.051620113

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…Polymer latexes are currently enjoying a fairly ample range of applications in many fields including among others biochemistry, colloid sciences, and medicine. − In particular, latexes containing functional groups, such as carboxyl, hydroxyl, and amino, exposed on the surfaces of the constituting particles can be used in immobilization by ionic or covalent bindings of biological molecules such as proteins, antibodies, and enzymes. − …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] In particular, latexes containing functional groups, such as carboxyl, hydroxyl, and amino, exposed on the surfaces of the constituting particles can be used in immobilization by ionic or covalent bindings of biological molecules such as proteins, antibodies, and enzymes. [6][7][8][9][10][11][12][13][14] Commonly the preparation of aminated latexes involves procedures requiring three reaction stages comprising styrene polymerization, nitration of polystyrene, and reduction of the nitro groups inserted on the aromatic rings in order to obtain aminated particles. 15 Other procedures usually are based on the grafting of appropriate functional polymers on the surface of the latexes previously prepared.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Aminated Polystyrene Latexes by Dispersion Polymerization

et al. 2000

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The preparation and characterization of aminated polystyrene-based latexes as attainable by dispersion polymerization technique are reported. Mixtures of Boc-p-aminostyrene and styrene monomers at various compositions were copolymerized under dispersion conditions in 2-propanol/water 3:1 by volume in the presence of alpha,alpha'-azobis(isobutyronitrile) as free radical initiator at 75 degrees C. Copolymer microspheres with uniform size distributions and average diameters comprised between 0.9 and 1.8 mu m were obtained. Aminated microspheres were obtained by the simple removal of the Boc protective group under acidic conditions followed by neutralization, thus leading to p-aminostyrene/styrene copolymers. These chemical treatments when carried out under mild conditions (room temperature and dilute acid and basic solutions), demonstrated to be efficient without causing any major alteration of the microspheres morphology. XPS analysis of the prepared microspheres showed an increase of NH2 groups with the increasing of the Boc-p-aminostyrene in the copolymer feed up to 10 mol %

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of Aminated Polystyrene Latexes by Dispersion Polymerization

et al. 2000

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Hyper‐crosslinked sorbents for hemoperfusion

Kolarz

Jermakowicz-Bartkowiak

1995

Angew. Makromol. Chem.

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Pore structure changes of swelling sorbents, which were obtained from styrene and divinylbenzene (DVB) by additional crosslinking with a,a'-dichloro-p-xylene in the presence of tin chloride catalyst and in dichloroethane solution, were examined. It was found that the amount of dichloroxylene influences the swelling decrease and the increase of sorption ability of sorbents for chemical compounds with low molecular weight. Hemocornpatibility was imparted to the sorbent and it was useful for hemoperfusion when a small amount of sulfonyl groups (about 0.2 mmol/g) had been introduced. ZUSAMMENFASSUNG:Veranderungen der Porenstruktur von quellbaren Sorbentien, hergestellt durch zusatzliche Vernetzung von Styrol-Divinylbenzol-Copolymeren mit a,a'-Dichlorxylol in Gegenwart eines Zinnkatalysators in Dichlorethan, wurden untersucht. Der Gehalt an Dichlorxylol beeinfluat die Abnahme der Quellbarkeit und die Zunahme der Sorptionsfahigkeit fur niedermolekulare Verbindungen. Die Sorbentien waren hamokompatibel und konnten nach Einfuhren geringer Mengen Sulfonylgruppen (ca. 0.2 mmol/g) zur Hamoperfusion eingesetzt werden.

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Surface functionalization of polymer networks. Sulfonation of the internal surface of macroporous styrene‐divinylbenzene copolymers

Struck

Widdecke

1996

Angew. Makromol. Chem.

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Surface functionalization of porous polymer networks was investigated using the sulfonation of macroporous styrene-divinylbenzene (S-DVB) copolymers as model reaction. Reaction conditions for the surface sulfonation were studied. Sulfonation with sulfuric acid in the presence of nitromethane was found to be a suitable method. Models and ideas of network structure are developed in order to estimate surface capacities and to show that surface-sulfonated networks were obtained. ZUSAMMENFASSUNG:Die Oberflachenfunktionalisierung polymerer Netzwerke wurde anhand der Sulfonierung makroporoser Styrol-Divinylbenzol-Copolymerer (S-DVB) als Modellreaktion untersucht. Die Bedingungen fur eine Oberflachensulfonierung wurden untersucht. Es wurde gefunden, daB die Sulfonierung mit Schwefelsaure in Gegenwart von Nitromethan eine geeignete Methode ist. Modelle und Vorstellungen uber die Struktur der Netzwerke werden entwickelt, um Oberflachenkapazitaten abzuschatzen und um zu zeigen, daB oberflachensulfonierte Netzwerke erhalten wurden.

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Surface sulphonated highly crosslinked styrene‐divinylbenzene copolymers

Cited by 11 publications

References 10 publications

Preparation of Aminated Polystyrene Latexes by Dispersion Polymerization

Preparation of Aminated Polystyrene Latexes by Dispersion Polymerization

Hyper‐crosslinked sorbents for hemoperfusion

Surface functionalization of polymer networks. Sulfonation of the internal surface of macroporous styrene‐divinylbenzene copolymers

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