ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The behaviour of poly(3,3-phthalidylidene-4,4′-biphenylylene) (PPB) in acidic media was studied. In solvents with high acidity e.g. concentrated sulfuric acid, chlorosulfonic acid or PCl5, the phthalide groups of PPB were transformed into anthracen-9-one groups. Exposure time, solvent and temperature were found to affect the rearrangement of 3,3-diphenylphthalide and PPB in the presence of PCl5. The resulted polymers are soluble in common organic solvents and contain either 10-chloro-10-aryl-anthracen-9-one, or after hydrolysis, 10-hydroxy-10-arylanthracen-9-one units. Flexible and transparent polymer films were prepared by casting from the solution.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021940216
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