{"title":"Dimerisation of ethylene catalyzed by nickel catalyst supported on porous polymers","authors":"","doi":"10.1016/0167-6989(88)90095-5","DOIUrl":"https://doi.org/10.1016/0167-6989(88)90095-5","url":null,"abstract":"","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Page 135"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90095-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138241547","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":"Polymer-supported 2,2′-dipyridylmethane and some derivatives thereof: Preparation, complexation with metal ions and catalytic activity of metal complexes in hydrogenations and oligomerisations","authors":"","doi":"10.1016/0167-6989(88)90100-6","DOIUrl":"https://doi.org/10.1016/0167-6989(88)90100-6","url":null,"abstract":"","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Pages 136-137"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90100-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138260680","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":"Polymer-supported bidentate phosphine ligands for metal complex catalysts","authors":"","doi":"10.1016/0167-6989(88)90085-2","DOIUrl":"https://doi.org/10.1016/0167-6989(88)90085-2","url":null,"abstract":"","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Page 131"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90085-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138302808","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":"Preparation of amino acid ester-selective cavities formed by non-covalent imprinting with a substrate in highly cross-linked polymers","authors":"Lars Andersson","doi":"10.1016/0167-6989(88)90047-5","DOIUrl":"10.1016/0167-6989(88)90047-5","url":null,"abstract":"<div><p>Methods explored in order to make molecular imprints with phenylalanine ethyl esters in styrene and acrylic polymers using a non-covalent imprinting technique are described. Amino acid ester-selective polymers were prepared after ion-pair association of substrate (print molecule) and carboxyl-containing monomers in the polymerization step. A high concentration of cross-linking agents (divinylbenzene or ethylene glycol dimethacrylate) was present in the polymerization mixtures in order to produce macroporous polymers of high rigidity. After polymerization, polymers were washed free from print molecules and the substrate-selective polymers formed were examined by incubation of the polymers with racemic mixtures of doubly radiolabelled phenylalanine ethyl ester. Binding experiments in batch and chromatographic procedures have been performed. It was found that separation factors determined for polymers prepared in the presence of <span>d</span>- or <span>l</span>-phenylalanine ethyl ester were different from one, indicating that the polymers formed were chiral. It was also found that the polymers interacted preferentially with the enantiomer of the print molecule present in the polymerization mixture. Finally, a synthetic procedure has been worked out for making new amino acid-based cross-linkers suitable for preparation of substrate-selective acrylic polymers. The method utilizes modification of aminoalcohols by acryloyl chloride substitution.</p></div>","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Pages 29-41"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90047-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79001091","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":"Polymer-bound crown ethers. II. Catalysis of several condensation reactions by polymer-bound dibenzo-18-crown-6","authors":"A. Zitsmanis, A. Roska, M. Klyavinsh","doi":"10.1016/0167-6989(88)90051-7","DOIUrl":"10.1016/0167-6989(88)90051-7","url":null,"abstract":"<div><p>Complexes of potassium and ammonium salts or hydroxides with poly(dibenzo-18-crown-6-co-formaldehyde) were used as catalysts in several condensation reactions of aromatic aldehydes with active methylene (methyl) compounds performed in two- and three-phase systems. Activities of uncomplexed and complexed catalysts were compared.</p></div>","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Pages 67-70"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90051-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79184035","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":"Characterization of methacrylate copolymers with strong-acid or base groups using 1H NMR spectra","authors":"J. Hradil, H. Pivcová, J. Spěváček, F. Švec","doi":"10.1016/0167-6989(88)90049-9","DOIUrl":"10.1016/0167-6989(88)90049-9","url":null,"abstract":"<div><p>The chemical shift and intensity of <sup>1</sup>H NMR bands of the hydroxylic group of a solvent (ethylene glycol, methyl alcohol) were investigated in the presence of methacrylate copolymers containing strong-acid sulfonic acid groups or strong-base tributyl ammonium groups. In addition to the OH band of the so-called “external” solvent, another OH band was detected which was due to the solvent present in the polymer bulk and bound by coordination with the functional groups just mentioned. The difference between the chemical shifts of OH protons of the “external” and “internal” solvent and the relative intensity of the “internal” OH band increase linearly with the concentration of acid functional groups; they also depend on the grain size, and to some extent on the morphology of the polymer. By using NMR spectra, it is also possible to characterize the swelling of polymers containing acid or base groups.</p></div>","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Pages 51-58"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90049-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85181222","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":"The use of modified acrylonitrile-divinylbenzene copolymers in phase transfer catalysis","authors":"","doi":"10.1016/0167-6989(88)90098-0","DOIUrl":"https://doi.org/10.1016/0167-6989(88)90098-0","url":null,"abstract":"","PeriodicalId":101060,"journal":{"name":"Reactive Polymers, Ion Exchangers, Sorbents","volume":"9 1","pages":"Pages 135-136"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-6989(88)90098-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138260647","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}