On the rigidity of polynorbornenes with dipolar pendant groups

被引:61
作者
Lin, WY
Murugesh, MG
Sudhakar, S
Yang, HC
Tai, HC
Chang, CS
Liu, YH
Wang, Y
Chen, IWP
Chen, CH
Luh, TY [1 ]
机构
[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Taipei 106, Taiwan
[3] Acad Sinica, Inst Phys, Taipei 115, Taiwan
[4] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan
关键词
atomic force microscopy; EFISH; poly(norbornene)s; polymerization; rigid rod polymers; ring-opening metathesis;
D O I
10.1002/chem.200500770
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A range of polynorbornenes (PNBs) with fused dipolar pendant groups at C-5,6 positions was synthesized by ring-opening metathesis polymerization catalyzed by a ruthenium carbene complex (Grubbs 1). Photo-physical studies, EFISH measurements, and atomic force microscopy images have been used to investigate the structures and morphology of these polymers. These results suggest that the polymers may adopt rigid rod-like structures. The presence of the double bonds in PNBs appeared to be indispensable for the rigidity of the polymers. Interaction between unsaturated pendant groups may result in coherent alignment leading to a rod-like structure.
引用
收藏
页码:324 / 330
页数:7
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