✍ Scribed by Masaru Nakamura; Masato Sasaki; Hideko Takekuma; Toshie Minematsu; Shin-ichi Takekuma
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📜 SIMILAR VOLUMES
A series of phosphorous-containing aliphatic polyesters were synthesized by high-temperature solution condensation of 2-(6-oxido-6H-dibenz͗c,e͗͘1,2͘oxaphosphorin-6yl)-1,4-hydroxyethoxy phenylene (III) with various aromatic acid chlorides in o-dichlorobenzene. All polyesters are amorphous and readily
A series of polyester-amides that contain phosphorus were synthesized by low temperature solution condensation of 1,4-bis(3-aminobenzoyloxy)-2-(6-oxido-6H-dibenz͗c,e͗͘1,2͘oxaphosphorin-6-yl) phenylene (III) with various aromatic acid chlorides in N-methyl pyrrolidone (NMP). All polyester-amides are
Fifteen title compounds, e.g. (I)-(III), are prepared essentially as described previously. Evaluation of their absorption, emission and laser properties shows that N-allyl substituted derivatives (Ia) and (IIa) have high fluorescence quantum yields and laser efficiencies of 137 and 140%, respectivel