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首页> 外文期刊>Journal of Applied Polymer Science >Novel 1,4-Diketo-3,6-diphenyl pyrrolo[3,4-c]pyrrole (DPP)-based Copolymers with Large Stokes Shift
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Novel 1,4-Diketo-3,6-diphenyl pyrrolo[3,4-c]pyrrole (DPP)-based Copolymers with Large Stokes Shift

机译：新型的具有大斯托克斯位移的1,4-二酮-3,6-二苯基吡咯并[3,4-c]吡咯（DPP）基共聚物

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摘要

Two novel alternating pi-conjugated copolymers, named PDPPDOPV and PDPPDOPE, constituted of 1,4-diketo-3,6-diphenyl pyrrolo[3,4-c]pyrrole (DPP) with 2,5-dioctyloxy-1,4-phenylenevinylene (DOPV) or 2,5-dioctyloxy-1,4-phenylenevinylene (DOPE), respectively, Were synthesized and characterized by UV-vis, FT-IR, and photoluminescence spectroscopy. They are dark red solid readily soluble in various common organic solvents including THF and chloroforim. The UV-vis absorption spectra of the polymiers show strong absorption bands, which correspond to the pi-pi* transition of pi-conjugated segments. Photoluminescence (PL) spectra show that both polymer films and solution have, large Stokes shifts. From their fluorescence behavior, Stokes shifts of 173 nm and 199 nm are derived for the films of PDPPDOPV and PDPPDOPE, respectively, which are the largest two values ever reported for DPP-containing,; polymers. (0 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 1976-1984, 2009
机译：由1,4-二酮-3,6-二苯基吡咯并[3,4-c]吡咯（DPP）与2,5-二辛氧基-1,4-亚苯基乙烯撑构成的两种新颖的交替pi共轭共聚共聚物，称为PDPPDOPV和PDPPDOPE。分别通过紫外可见光谱，傅立叶变换红外光谱和光致发光光谱法合成（DOPV）或2,5-二辛氧基-1,4-亚苯基亚乙烯基（DOPE）。它们是深红色固体，易溶于各种常见的有机溶剂，包括THF和氯甲酸。聚合物的UV-vis吸收光谱显示出强吸收带，其对应于π-共轭链段的π-π*跃迁。光致发光（PL）光谱表明，聚合物膜和溶液都具有较大的斯托克斯位移。根据它们的荧光行为，分别得出PDPPDOPV和PDPPDOPE膜的斯托克斯位移为173 nm和199 nm，这是有报道的含DPP的最大两个值。聚合物。 （0 2008 Wiley Periodicals，Inc.J Appl Polym Sci 111：1976-1984，2009

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