Synthesis and Optical Properties of Phthalonitrile Oligomers
โ Scribed by Tsai, ZoHong; Sandman, Daniel J.
- Book ID
- 111958364
- Publisher
- Cambridge University Press
- Year
- 1999
- Weight
- 111 KB
- Volume
- 598
- Category
- Article
- ISSN
- 0272-9172
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๐ SIMILAR VOLUMES
New conjugated oligomers were synthesized by reacting diphenylacetylene under high pressure of 0.13-0.76 GPa at 250 and 300ะC for 1-10 h. The numberaverage molecular weight M V n , and the weight-average molecular weight M V w increased with pressure, but those values were independent of temperature
Reducing sugars and sodium hydroxide react with phthalonitrile and 4-methoxyphthalonitrile to form mixtures of the phthalocyanine and oligomers. The oligomers, obtained in yields up to 54%, were deduced to have a structure that is predominantly polyazine with the o-cyanophenyl group as a substituent