ISSN:
0887-624X
Keywords:
poly(sulfonium salt)
;
poly(2-vinyldibenzothiophene)
;
5-methyl-2-vinyldibenzothiophenium tetrafluoroborate
;
sulfonium monomer
;
radical polymerization
;
polymer reaction
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A polymer having dibenzothiophenium salt moieties [poly(sulfonium salt), 2] was prepared by the reaction of poly(2-vinyldibenzothiophene) (1) with CH3I and AgBF4 in CH2ClCH2Cl at room temperature for 24 h. The obtained polymer 2 was found to contain 71% of the methyldibenzothiophenium tetrafluoroborate unit. A monomer carrying the sulfonium salt moiety, i.e., 5-methyl-2-vinyldibenzothiophenium tetrafluoroborate (4), was independently prepared and subjected to radical polymerization to give a polymer (5) in 88% yield (methyldibenzothiophenium tetrafluoroborate unit: 79%). The thermal decompositions of 2 and 5 took place in two steps; the first step involved the formation of polymer 1 by demethylation. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 1779-1784, 1998
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
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