Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m-Phthaloyl dichloride
Syntheses of Novel Macrocyclic Polyarylate Oligomers Based on Phenolphthalein and m Phthaloyl dichloride作者机构:Department of ChemistryJilin UniverstryChangchun 130023P.R.China Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130021P.R.China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:1999年第15卷第4期
页 面:350-353页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金:国家自然科学基金
主 题:macrocyclic oligomer pseudo high dilution technique polycondensation ring opening polymerization thermal behavior.
摘 要: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.