Yu Chin-Yang, Kingsley James W, Lidzey David G, Turner Michael L
Organic Materials Innovation Centre, School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
Macromol Rapid Commun. 2009 Nov 19;30(22):1889-92. doi: 10.1002/marc.200900345. Epub 2009 Aug 14.
Fully conjugated block copolymers containing 1,4- and 1,3-phenylenevinylene repeating units can be prepared by the sequential ring opening metathesis polymerization of strained cyclophanedienes, initiated by ruthenium carbene complexes (Grubbs metathesis catalysts). The molecular weight of the constituent blocks can be tightly controlled by changing the catalyst to monomer ratio and the volume fraction of the block copolymers independently tailored by the ratio of the monomers employed. Extensive phase separation between the constituent blocks is observed in thin films of these polymers by atomic force microscopy and efficient energy transfer between blocks containing 1,4- and 1,3-phenylenevinylene units can be seen in the photoluminescence of these materials.
含有1,4 - 和1,3 - 亚苯基亚乙烯基重复单元的完全共轭嵌段共聚物可通过钌卡宾配合物（格拉布催化剂）引发的张力环戊二烯的顺序开环易位聚合来制备。通过改变催化剂与单体的比例，可以严格控制组成嵌段的分子量，并通过所用单体的比例独立定制嵌段共聚物的体积分数。通过原子力显微镜在这些聚合物的薄膜中观察到组成嵌段之间广泛的相分离，并且在这些材料的光致发光中可以看到含有1,4 - 和1,3 - 亚苯基亚乙烯基单元的嵌段之间有效的能量转移。
