1977
DOI: 10.1002/macp.1977.021780210
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Über die boronierung von polystyrol

Abstract: Boronic acid groups can be introduced in crosslinked and linear polystyrene by metalation with the complex butyllithium/N,N,N',N'-tetramethylethylenediamine and subsequent treatment with boric acid esters. Investigations of the photochemical boronation of polystyrene by boron tribromid show that the reaction is accompanied by strong chain degradation, whereas the former method leads to an increase in moleqular weight.

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Cited by 9 publications
(2 citation statements)
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“…In contrast, oxidations and reductions find only limited use in post‐polymerization modification, with examples being the reduction of poly( N ‐acetylethyleneimines) yielding poly( N ‐alkylethyleneimines)48 or the oxidation of poly(vinyl alcohol) with NaOCl yielding poly(enol‐ketone) 49. Functionalized polystyrenes have been prepared by various substitution reactions, which include amination and quaternization of chloromethylated polystyrene,50–52 Friedel‐Crafts reactions on polystyrene,53–55 sulfonation of polystyrene,56 as well as the lithiation of polystyrene 57–61. Other examples include the chlorination of cross‐linked polystyrene‐divinylbenzene beads10 as well as the modification of halogenated or lithiated poly(meth)acrylates 11, 12…”
Section: Mechanistic Considerationsmentioning
confidence: 99%
“…In contrast, oxidations and reductions find only limited use in post‐polymerization modification, with examples being the reduction of poly( N ‐acetylethyleneimines) yielding poly( N ‐alkylethyleneimines)48 or the oxidation of poly(vinyl alcohol) with NaOCl yielding poly(enol‐ketone) 49. Functionalized polystyrenes have been prepared by various substitution reactions, which include amination and quaternization of chloromethylated polystyrene,50–52 Friedel‐Crafts reactions on polystyrene,53–55 sulfonation of polystyrene,56 as well as the lithiation of polystyrene 57–61. Other examples include the chlorination of cross‐linked polystyrene‐divinylbenzene beads10 as well as the modification of halogenated or lithiated poly(meth)acrylates 11, 12…”
Section: Mechanistic Considerationsmentioning
confidence: 99%
“…[89]. Die in den IRSpektren der Polymere bei 800 cm-l auftretende CH- Zusamnienfassend kann festgestellt werden, da13 die Synthese und Anwendung mit Boronsaure modifizierter Polymere in den letzten Jahren einen betrachtlichen Fortschritt genommen hat.…”
Section: Zurunclassified