ISSN:
0887-624X
Schlagwort(e):
Friedel-Crafts polymerization
;
poly(arylene methylene)s
;
synthesis
;
polymers of naphthalene
;
anthracene
;
phenanthrene
;
IR
;
1H and 13C-NMR
;
soluble
;
insoluble
;
thermal stability
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The conversion of naphthalene, anthracene, and phenanthrene to polymeric material via Friedel-Crafts chemistry was investigated. Synthesis of the polymers was accomplished by: (1) self-condensation of the chloromethylated aromatic substrate in the presence of AlCl3 or SnCl4 or (2) treatment with chloromethyl ethyl ether (CMEE) and SnCl4, producing the chloromethylated substrate in situ, followed by self-condensation polymerization. Soluble or insoluble polymers were preferentially produced by varying the stoichiometry, time, or temperature of the reaction. The resulting polymers consisted of the polycyclic aromatic nuclei bridged by methylene groups. The regiochemistry of the polymer linkages was determined through the use of IR, 1H- and 13C-NMR. The polymers showed relatively high thermal and thermo-oxidative stabilities (380-495°C). © 1992 John Wiley & Sons, Inc.
Zusätzliches Material:
4 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pola.1992.080300930
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