ISSN:
0025-116X
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
The Friedel-Crafts acylation of various crosslinked polystyrenes, both microporous and macroporous, by ω-halogenoacyl chlorides, a reaction used by others to functionalise polystyrenes, was carefully investigated. As judged by elemental analyses, the desired reaction to give ω-halogenoacyl residues is always accompanied by side reactions. Infrared spectroscopy indicates that these include crosslinking and the introduction of carboxylic acid groups. The side reactions are less pronounced with the ω-chloro compounds and with the 2% crosslinked microporous polymer. For many applications these side reactions will not be important, but in some cases an awareness of their occurrence could be crucial.
Zusätzliches Material:
2 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/macp.1990.021910715
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