Han Peng;Jingdong Luo;Lin Cheng;Jacky W.Y. Lam;Kaitian Xu;Yuping Dong;Dezhen Zhang;Yi Huang;Zhongde Xu;本忠 唐
Hong Kong University of Science and Technology;East China University of Science and Technology;China Association for Science and Technology
发表时间:2003-1-1
期 刊:Optical Materials
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=0037210775&partnerID=8YFLogxK
High molecular weight, hyperbranched polyarylenes were synthesized in high isolation yields by the copolycyclotrimerizations of 2,5-diethynylthiophene (1), 4,4′-biphenyldiyne (2), and 2,7-diethynylfluorenes (3) with 1-heptyne (4) and 1-dodecyne (5) using TaCl5-Ph4Sn as the catalyst in toluene. The structures of the polymers were characterized by IR, NMR, TGA, and UV analyses. All the polymers exhibited outstanding thermal stability and emitted strong blue light, whose intensities are higher than that of poly(1-phenyl-1-octyne), a well-known highly emissive polyacetylene. Little red shift was observed in the photoluminescence of the polymer thin films. The polymers strongly attenuated intense pulses of 532 nm laser pulses.
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | 0.727 | 0.877 | |
2000 | 0.82 | 0.879 | |
2001 | 0.842 | 1.142 | |
2002 | 0.829 | 0.97 | |
2003 | 0.919 | 1.173 | |
2004 | 0.85 | 1.133 | |
2005 | 0.86 | 1.193 | |
2006 | 0.917 | 1.332 | |
2007 | 0.991 | 1.293 | |
2008 | 0.993 | 1.258 | |
2009 | 0.897 | 1.229 | |
2010 | 0.91 | 1.198 | |
2011 | 3 | 0.807 | 1.37 |
2012 | 3.4 | 0.82 | 1.154 |
2013 | 3.2 | 0.758 | 1.243 |
2014 | 3.8 | 0.721 | 1.204 |
2015 | 3.4 | 0.654 | 1.096 |
2016 | 3.8 | 0.636 | 1.058 |
2017 | 3.7 | 0.592 | 1.054 |
2018 | 3.9 | 0.59 | 1.025 |
2019 | 4.4 | 0.594 | 1.068 |
2020 | 4.4 |
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