【摘 要】
:
Two novel copolymers based on squaraine and fluorine units have been synthesized through palladium catalyzed Suzuki coupling reaction and Sonogashira coupling r
【机 构】
:
College of Chemistry
论文部分内容阅读
Two novel copolymers based on squaraine and fluorine units have been synthesized through palladium catalyzed Suzuki coupling reaction and Sonogashira coupling reaction, respectively. The structures and properties of the two copolymers were characterized by FT-IR, NMR, UV-vis absorbance (Abs), gel permeation chromatography (GPC), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC) and cyclic voltammetry (CV). The solution absorption spectrums of P1 and P2 show two distinct absorption bands, one locates at 300-500 nm and the other at 600-800 nm. The absorption spectrums of P1 and P2 in films are broadened obviously and the spectral responses are extended up to 900 nm. Thermal gravimetric analysis demonstrates that the polymers are stable. Cyclic voltammetry experiment shows that the band gaps of the copolymers are 1.65 eV and 1.67 eV, respectively, suggesting their potential for applications as solar cells materials.
其他文献
We report herein the use of p-dodecylbenzenesulfonic acid (DBSA) as a catalyst for a one-pot Biginelli reaction to afford 3,4-dihydropyrimidinone derivatives in
A new 3-(3,4-methylenedioxyphenyl)-propane-l,2-diol glycoside, named cinnamomdiol A (1), together with two known compounds, 3-(3,4-methylenedioxyphenyl)-propane
A novel and efficient procedure for the synthesis of alkyl phosphonates through one pot condensation of alkyl halide and trialkyl /aryl phosphite in the presenc
A series of novel 5-benzylidene-3-(3-fluoro-4-yl-morpholin-4-yl-phenylimino)thiazolidin-4-one derivatives were synthesized using [bmIm]OH as a catalyst and were
Treatment of chiral N-tert-butyl sulfinylimines with ethyl bromofluoroacetate in the presence of activated Zn dust in THF afforded the α-fluoro-β-amino acid d
The fabrication of poly (2,6-pyridinedicarboxylic acid)/MWNTs modified glass electrode (PPDA/MWNTs/GCE) was proposed and used for individual or simultaneous det
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
Tetrabutyl ammonium fluoride (TBAF) was found to be capable of catalyzing the intramolecular hydroalkoxylation of 6-hydroxyhex-2-ynoates and 7-hydroxyhept-2-yno
The interaction of lysozyme (Lys) and gold nanoparticles was investigated via UV-vis absorption and resonance light-scattering method. There are some changes of
Background Although some studies have reported that aquaporin-4 (AQP4) plays a role in the post-ischemic edema formation and diffusion-weighted imaging (DWI), l