SYNTHESIS, CHARACTERIZATION AND OPTICAL PROPERTIES OF THE COPOLYMERS OF C60 AND 1-PHENYL-1-PROPYNE

• 来源期刊: 高分子科学（英文版）
• 年，卷（期）: 1999,（4）
• 页码范围: 391-395
• 页数: 5页
• 语种: 英文

摘要

While WCl6-Ph4Sn fails to polymerize 1-phenyl-1-propyne (PP) at room temperature, high molecular weight (Mw up to 410×103) polymers are obtained in high yields (up to 80%) when the polymerizations of PP are carried out in the presence of C60 using the W catalyst under the same conditions.The polymers are soluble in common organic solvents such as THF, chloroform, and toluene. Molecular structures of the polymers are characterized by FT-IR, UV, NMR, GPC and XRD, and it is found that C60 is copolymerized with PP. Thus C60 plays the dual roles of comonomer and cocatalyst in the polymerization reaction. C60 contents of the copolymers can be easily changed by varying the C60 amounts in the feed mixtures. The copolymers effectively limit strong 532 nm laser pulses, whose limiting performance is superior to that of parent C60.