用原子转移自由基聚合法合成末端含碳笼烯-60的窄分子量分布聚苯乙烯

• 作 者: 周鹏 陈广强 洪瀚 杜福胜 李子臣 李福绵
• 机 构: 北京大学化学学院!北京100871,北京大学化学学院!北京100871,北京大学化学学院!北京100871,北京大学化学学院!北京100871,北京大学化学学院!北京100871,北京大学化学学院!北
• 出 处: 高分子学报
• 发表日期: 1999年06期
• 关键词: 分子量分布 氨基乙氰标记 封端 溴原子 聚合管 高分子链 可控自由基聚合 阳离子聚合 活性自由基聚合 聚合物处理

C-{60}|end|bonded polystryrenes(PS|C-{60}|Br) with narrow molecular weight polydispersity were prepared by atom transfer radical polymerization (ATRP) in good yield.GPC results show that the polydispersities of these fullerene polymeric derivatives were between 1.1 and 1.3.The brown color of the solution indicates that C-{60} has been bonded into the polymer,which was confirm by UV|vis.Furthermore,2|amino|acetonictrile was used as an IR label to react with PS|C-{60}|Br,and the product show the characteristic absorption of CN group at 2369cm+{-1}.These results reinforce the conclusion that C-{60} has been covalently bonded into the polymer.A possible mechanism of the formation of C-{60}|end|bonded PSt was deduced tentatively.

C - {60 } | end | bonded polystryrenes (PS | C - {60 } | Br) with narrow molecular weight polydispersity were prepared by atom transfer radical polymerization (ATRP) in good yield. GPC results show that the polydispersities of these fullerene polymeric derivatives were between 1.1 and 1.3. The brown color of the solution indicates that C - {60 } has been bonded into the polymer, which was confirm by UV | vis.Furthermore, 2 | amino | acetonictrile was used as an IR label to react with PS | C - {60 } | Br, and the product show the characteristic absorption of CN group at 2369cm + {- 1 }. These results reinforce the conclusion that C - {60 } has been covalently bonded into the polymer.A possible mechanism of the formation of C - {60 } | end | bonded PSt was deducted tentatively.