ISSN:
0025-116X
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
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.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/macp.1993.021940216
Permalink
