Comparison of precursor polymer routes to and electronic properties of a new phenylacetylene derivatised poly[2-(2′-ethylhexyloxy)-1,4-phenylenevinylene]
作者:Shih-Chun Lo、Anna K. Sheridan、Ifor D. W. Samuel、Paul L. Burn
DOI:10.1039/a904274a
日期:——
We have prepared poly[2-(2â²-ethylhexyloxy)-5-phenylethynyl-1,4-phenylenevinylene] (PAPPV) 13via, S-methyl xanthate 10, chloro 11, and O-ethyl xanthate 12 precursor polymers. All three precursor polymers could be thermally converted to give films of 13. We found that the UVâVIS and photoluminescence (PL) spectra, and PL quantum yields (11â14%) were similar when 13 was prepared from either the S-methyl xanthate or chloro precursor polymers. In contrast, the UVâVIS and PL spectra of 13 prepared via the O-ethyl xanthate precursor polymer were observed to be blue-shifted and the PL quantum yield was much lower (2%).
我们制备了聚[2-(2â²-乙基己氧基)-5-苯乙炔基-1,4-苯乙烯](PAPPV)13via、S-甲基黄原酸盐 10、氯 11 和 O-乙基黄原酸盐 12 前体聚合物。所有这三种前体聚合物都可以通过热转化得到 13 的薄膜。我们发现,用 S-甲基黄原酸盐或氯前体聚合物制备 13 时,其紫外可见光谱和光致发光(PL)光谱以及 PL 量子产率(11%-14%)相似。相比之下,通过黄原酸 O-乙基前体聚合物制备的 13 的紫外可见光谱和光致发光光谱出现蓝移,光致发光量子产率也低得多(2%)。