Reactive PolymersPub Date : 1994-10-01Epub Date: 2003-06-11DOI: 10.1016/0923-1137(94)90002-7
B.N. Kolarz , J. Jezierska , D. Bartkowiak , A. Gontarczyk
{"title":"Acrylic resins with complexes of guanidyl groups and copper(II)","authors":"B.N. Kolarz , J. Jezierska , D. Bartkowiak , A. Gontarczyk","doi":"10.1016/0923-1137(94)90002-7","DOIUrl":"10.1016/0923-1137(94)90002-7","url":null,"abstract":"<div><p>Heating of acrylonitrile, vinyl acetate and divinylbenzene porous copolymers (AN-VA-DVB) with aminoguanidine salts in alkaline medium leads to aminolysis and hydrolysis of the nitrile groups and hydrolysis of acetyl groups. As a result, an amphoteric chelating resin with guanidyl and carboxyl groups at a concentration of <em>ca</em>. 13and 2–4 mmol/g, respectively, is obtained. The resin possesses a porous structure with a mean pore radius of 5.6 nm in swollen state. The sorption of Cu(II) ions increases with increasing content of functional groups, and reaches 120–170 mg/g at pH 5. The equilibrium sorption is attained after 300 min. The infrared (IR) spectra of resins confirm that both guanidyl and carboxyl groups form complexes with Cu(II) ions. From analysis of the sorption degree of Cu(II) ions it can be concluded that statistically two groups (carboxyl or/and guanidyl) participate in the complexation. Electron paramagnetic resonance (EPR) spectra of the resins suggest that at low pH the complexes of Cu(II) ions with carboxyl groups dominate. At the pH range 3–8 the formation of Cu(II) complexes with carboxyl and guanidyl groups is evident. At pH > 9 three or four nitrogen atoms participate in coordination sphere around Cu(II).</p></div>","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"23 2","pages":"Pages 53-61"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-1137(94)90002-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73578454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Functional metallomacrocycles and their polymers. Part 31. Autoxidation of thiol by temperature-sensitive polymer catalyst containing cobalt(II) phthalocyanine complex","authors":"Mutsumi Kimura, Tadayoshi Nishigaki, Toshiki Koyama, Kenji Hanabusa, Hirofusa Shirai","doi":"10.1016/0923-1137(94)90021-3","DOIUrl":"https://doi.org/10.1016/0923-1137(94)90021-3","url":null,"abstract":"<div><p>Copolymers (I-IV) of 2-acryloylamino-9,16,23-tri(<em>t</em>-butyl)phthalocyanine (APc(<em>t</em>-Bu)<sub>3</sub>) and acrylamide derivatives were prepared and their catalytic activity for oxidation of 2-mercaptoethanol was examined. Copolymers (II and IV) of APc(<em>t</em>-Bu)<sub>3</sub> and <em>N</em>-isopropylacrylamide revealed a lower critical solution temperature phenomenon at 29°C in carbonate buffer, that is to say, the copolymers dissolving in buffer solution below 29°C separated out as precipitate above 29°C. The catalytic activity of polymer IV, which was prepared by metalation of copolymer II, markedly changed around 29°C. Copolymer IV served as a homogeneous catalyst of autoxidation of 2-mercaptoethanol below 29°C. In contrast, the catalytic activity drastically decreased above 29°C because of separation as precipitate.</p></div>","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"23 2","pages":"Pages 195-200"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-1137(94)90021-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90013932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and preliminary evaluation of chelating resins containing α-aminoalkylphosphonic groups","authors":"Laurent Ménard, Laurent Fontaine, Jean-Claude Brosse","doi":"10.1016/0923-1137(94)90022-1","DOIUrl":"https://doi.org/10.1016/0923-1137(94)90022-1","url":null,"abstract":"<div><p>Chelating polymers containing an α-aminobenzylphosphonic acid group or an α-aminopyridylphosphonic acid group have been prepared starting with a crosslinked polyaminomethylstyrene. Chemical modification was achieved via the addition of diethyl phosphonate followed by hydrolysis (Kabachnick-Fields reaction) or by the addition of phosphorous acid onto the corresponding polyimines. Preliminary evaluation of the sorption capacities towards Ca<sup>2+</sup> and Co<sup>2+</sup> have shown that the prepared polymers exhibit similar or slightly greater chelating properties than a commercial resin (Duolite ES 467). It was also found that polymers containing an α-aminopyridylphosphonic acid group displayed a significant affinity towards Co<sup>2+</sup> contrary to resins containing an α-aminobenzylphosphonic acid group.</p></div>","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"23 2","pages":"Pages 201-212"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-1137(94)90022-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90013933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reactive PolymersPub Date : 1994-10-01Epub Date: 2003-06-11DOI: 10.1016/0923-1137(94)90004-3
Mario Casolaro
{"title":"Thermodynamics of multiple stimuli-responsive polyelectrolytes with complexing ability towards the copper(II) ion","authors":"Mario Casolaro","doi":"10.1016/0923-1137(94)90004-3","DOIUrl":"10.1016/0923-1137(94)90004-3","url":null,"abstract":"<div><p>The thermodynamics of protonation of carboxylate groups in polymers containing amido and isopropyl moieties was studied in 0.1 <em>M</em> NaCl at different temperatures. Compared with polymers with the <span>l</span>-leucine moiety, poly(N-acryloyl-<span>l</span>-valine) showed a wider decreasing linearity of the basicity constant (log <em>K</em>) in relation to the degree of protonation (α), with a minimum at <em>α</em> = 0.65. Under these conditions, a sharp endothermic peak revealed the presence of hydrophobic interactions as the macromolecule assumed a compact coil conformation and water molecules were released with an increase in entropy. The graft polymers on the surface of a polyurethane film displayed larger potentiometric hysteresis loops with respect to the cellulose support, as the nature of the polymer was similar to that of the hydrophobic substrate. The reversible configuration of the graft polymer chains instantly responded to changes in pH and temperature, modifying the rate of water filtration through the membrane pores. As the temperature approached 31°C an abrupt increase in water permeation was observed even though the graft polymer was in the uncharged and coiled state. The polyelectrolyte formed a hydroxo-complex species, involving two monomer units (L<sup>−</sup>) of the polymer, with the Cu(II) ion. Electron paramagnetic resonance (EPR) spectra, supported by conductometric data, revealed Cu(OH)<sub>2</sub>L<sub>2</sub><sup>2−</sup> stoichiometry in solution. The potentiometric data showed a good fit when processed by the Superfit program and a decreasing pattern of log β in relation to pH.</p></div>","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"23 2","pages":"Pages 71-83"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-1137(94)90004-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75278959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reactive PolymersPub Date : 1994-10-01DOI: 10.1016/0923-1137(94)90020-5
I. Shim, Kee-Sook Kim, Sinwoo Kim, Won-Suk Oh, Seok-Jong Oh, Yong-Sik Yang, Hwan-Kyu Suh, Sangkyu Lee
{"title":"Preparation of Pd-containing polysulfone film and the reaction chemistry of Pd complex in polysulfone","authors":"I. Shim, Kee-Sook Kim, Sinwoo Kim, Won-Suk Oh, Seok-Jong Oh, Yong-Sik Yang, Hwan-Kyu Suh, Sangkyu Lee","doi":"10.1016/0923-1137(94)90020-5","DOIUrl":"https://doi.org/10.1016/0923-1137(94)90020-5","url":null,"abstract":"","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"35 1","pages":"187-194"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76609761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reactive PolymersPub Date : 1994-10-01DOI: 10.1016/0923-1137(94)90017-5
Chen Yiyong, Yuan Xingzhong
{"title":"Synthesis and properties of 1-(2-aminoethyl)piperazine resin used in the sorption of the platinum group and gold ions","authors":"Chen Yiyong, Yuan Xingzhong","doi":"10.1016/0923-1137(94)90017-5","DOIUrl":"https://doi.org/10.1016/0923-1137(94)90017-5","url":null,"abstract":"","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"45 1","pages":"165-172"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79335897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reactive PolymersPub Date : 1994-10-01Epub Date: 2003-06-11DOI: 10.1016/0923-1137(94)90013-2
Jukka Lehto, Airi Paajanen, Risto Harjula, Heikki Leinonen
{"title":"Hydrolysis and H+Na+ exchange by Chelex 100 chelating resin","authors":"Jukka Lehto, Airi Paajanen, Risto Harjula, Heikki Leinonen","doi":"10.1016/0923-1137(94)90013-2","DOIUrl":"https://doi.org/10.1016/0923-1137(94)90013-2","url":null,"abstract":"<div><p>Chelex 100 chelating resin, as supplied (mixed sodium/hydrogen form 43% /57%), was found to be readily hydrolyzable through hydronium ion exchange from water. Contact with deionized water in solution volume to exchanger weight ratios of 10–4000 brought sodium ions into solution with concentrations of 0.05–1.5 mM and increased the pH from 6.1 to 8.7–10.0. In addition to sodium and hydroxide, the exchanger was found to release chloride and carbonate ions. The two acetate groups vary substantially in their selectivities to hydronium ions, the corrected selectivity coefficients being 1.3 × 10<sup>9</sup> and 1.4 × 10<sup>3</sup>, respectively.</p></div>","PeriodicalId":20864,"journal":{"name":"Reactive Polymers","volume":"23 2","pages":"Pages 135-140"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-1137(94)90013-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91675830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}