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Based on 6(2)-O-tosyl celluloses and 6(2)-O-tosylcellulose derivatives, it has been possible to synthesize a novel soluble aminocellulose type, P-CH2-NH-(X)-NH2 (P=cellulose, (X)=alkylene, aryl, aralkylene or oligoamine) with diamine or oligoamine residues at C6 and solubilizing groups (S) such as acetate, benzoate, carbanilate, methoxy and/or tosylate groups at C2/C3 of the anhydroglucose unit (AGU)...
The energy density dependent fluorescence efficiency and fluorescence decay of neat films and solutions in 1,4-dioxane of poly[1,4-phenylene-1,2-di(4-phenoxyphenyl)vinylene] (DPOP-PPV), poly[1,4-phenylene-1,2-di(4-phenylthiophenyl)vinylene] (DPSP-PPV), poly[4,4'-diphenylene-1,2-di(4-phenoxyphenyl)vinylene] (DPOP-PDPV), and poly[4,4'-diphenylene-1,2-di(4-fluorophenyl)vinylene] (DFP-PDPV) are investigated...
Neat films and solutions of poly[1,4-phenylene-1,2-di(4-phenoxyphenyl)vinylene], poly[1,4-phenylene-1,2-di(phenthiophenyl)vinylene], poly[4,4′-diphenylene-1,2-di(4-phenoxyphenyl)vinylene] and poly[4,4′-diphenylene-1,2-di(4-fluorophenyl)vinylene] in 1,4-dioxane are investigated. The optical constants of the neat films are determined, absorption and fluorescence data are analysed, and picosecond laser...
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