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CC-BY - Uznanie autorstwaSynthesis of cross-linked poly(acrylic acid) nanogels in an aqueous environment using precipitation polymerization: Unusually high volume change
| cris.lastimport.scopus | 2024-02-12T20:47:18Z |
| dc.abstract.en | For the first time, by using precipitation polymerization in an aqueous solution, a cross-linked poly(acrylic acid)—(pAA) nanogel was synthesized. pAA was synthesized and crosslinked with N,N0-methylenebisacrylamide (BIS) at 70°C in an acidified environment (pH 2) and containing 0.7 M NaCl using potassium persulfate as the initiator. Ionized pAA was soluble in water. The use of sodium chloride at low pH caused a decrease in the solubility of pAA and led to its precipitation and formation of cross-linked pAA nanogel. By using electron microscopies and light scattering techniques, the morphology, pH sensitivity and zeta potential of the obtained p(AA-BIS) nanogel were evaluated. The polymerization in an aqueous environment resulted in a very big swelling/ shrinking coefficient (of approx. 4000) in response to pH and exhibited an unusually high negative zeta potential (of approx. −130 mV). These properties make the nanogel a very interesting sorbent and a construction material. |
| dc.affiliation | Uniwersytet Warszawski |
| dc.contributor.author | Stojek, Zbigniew |
| dc.contributor.author | Maćkiewicz, Marcin |
| dc.contributor.author | Karbarz, Marcin |
| dc.date.accessioned | 2024-01-26T09:26:48Z |
| dc.date.available | 2024-01-26T09:26:48Z |
| dc.date.issued | 2019 |
| dc.description.accesstime | AT_PUBLICATION |
| dc.description.finance | Nie dotyczy |
| dc.description.number | 11 |
| dc.description.version | FINAL_PUBLISHED |
| dc.description.volume | 6 |
| dc.identifier.doi | 10.1098/RSOS.190981 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/121307 |
| dc.language | eng |
| dc.pbn.affiliation | chemical sciences |
| dc.relation.ispartof | Royal Society Open Science |
| dc.relation.pages | art. no. 190981 |
| dc.rights | CC-BY |
| dc.sciencecloud | nosend |
| dc.subject.en | BIS |
| dc.subject.en | High swelling degree |
| dc.subject.en | Nanogel |
| dc.subject.en | PAA |
| dc.subject.en | PH sensitivity |
| dc.title | Synthesis of cross-linked poly(acrylic acid) nanogels in an aqueous environment using precipitation polymerization: Unusually high volume change |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |