Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m-Phthaloyl-dichloride

Chemical Research in Chinese Universities ›› 1999, Vol. 15 ›› Issue (4): 350-353.

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Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m-Phthaloyl-dichloride

GAO Jun-bo¹, WANG Jun-zuo¹, SUN Hui¹, LI Ke¹, ZHANG Wan-jin¹, CHEN Chun-hai¹, WU Zhong-wen¹, JI Yi-ping²

1. Department of Chemistry, Jilin Universtry, Changchun 130023, P. R. China;
2. Chinese Academy of Sciences, Changchun 130021, P. R. China

Received:1999-01-06 Online:1999-12-24 Published:2011-08-17
Supported by:
Supported by the National Natural Science Foundation of China.

Abstract

Abstract: Novel macrocyclic oligomers were synthesized through the condensation of phenolphthalein and m-phthaloyl-dichloride with triethylamine as catalyst in the mixed solution of methylene chloride and THF via pseudo-high-dilution technique. The oligomers were characterized by IR, ¹H NMR, MS, WAXD, TGA and DSC. It was found that the 3∶3 adduct(molar ratio of phenolphthalein to m-phthaloyl-dichloride) and the 4∶4 adduct were the main products and there was a small amount of crystalline in the macrocyclic mixtures. When the mixtures were heated to 360 ℃, the crystalline disappeared.

Key words: macrocyclic oligomer, pseudo-high dilution technique, polycondensation, ring-opening polymerization, thermal behavior.

GAO Jun-bo, WANG Jun-zuo, SUN Hui, LI Ke, ZHANG Wan-jin, CHEN Chun-hai, WU Zhong-wen, JI Yi-ping . Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m-Phthaloyl-dichloride[J]. Chemical Research in Chinese Universities, 1999, 15(4): 350-353.

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Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m-Phthaloyl-dichloride

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