高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (7): 1409.

• 研究论文 • 上一篇    下一篇

共轭/非共轭嵌段聚苯撑乙烯(PPV)类共聚物的合成与性能

张明, 唐杰丛, 李国文, 张瑞丰, 沈家骢   

  1. 吉林大学超分子结构与材料教育部重点实验室, 长春 130023
  • 收稿日期:2001-06-04 出版日期:2002-07-24 发布日期:2002-07-24
  • 通讯作者: 李国文(1945年出生),男,博士,教授,主要从事脂质体和有机聚合物材料研究.E-mail:lgw@mail.jlu.edu.cn E-mail:lgw@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20004004)

Synthesis and Properties of the Copolymers Containing Both Conjugated Block(PPV) and Nonconjugated Block(PS) Segments

ZHANG Ming, TANG Jie-Cong, LI Guo-Wen, ZHANG Rui-Feng, SHEN Jia-Cong   

  1. Key Laboratory for Supramolecular Structure and Material of Educational Ministry, Jilin University, Changchun 130023, China
  • Received:2001-06-04 Online:2002-07-24 Published:2002-07-24

PDF (PC)

被引次数

10

摘要： 用活性中间体直接引发共轭/非共轭单体聚合的新方法合成了3种PPV嵌段共聚物;用核磁共振谱和FTIR光谱确定了共聚物的结构.引入非共轭片段PS缩短了PPV共轭链的长度,改善了聚合物的溶解性和可加工性.荧光光谱结果表明,嵌段聚合物可使发射峰蓝移,发光的量子效率明显提高,进而调节了发光颜色.

关键词: 共聚物, 活性中间体, 共轭/非共轭, 聚亚苯基亚乙烯(PPV)

Abstract: Three kinks of poly( p-phenylenevinylene)(PPV) copolymers with a conjugated block and nonconjugated polystyrene(PS) were synthesized by p-quinomethane active intermediate. The chemical structure of the copolymers was determined and confirmed by 1H NMRand FTIR. The introduction of flexible segment PSin the PPVtype of polymer leads to the interruption of conjugation, which shortens the effective conjugated length and improves their solubility and processibility for LEDdevices. In comparison with PPV, the copolymers containing both conjugated and noncojugated segments result in light emission of blue shifting, enhancement of luminescence efficiency and tuning color of emission light. The experiment results indicate that the polymerization of conjugated segment and noncojugated segment by p-quinomethane intermediates is a new and effective synthetic route for the copolymers.

Key words: Copolymer, Active intermediate, Conjugated/nonconjugated, PPV

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