【摘 要】
：
A series of novel fluorene-carbazole-based copolymers with pyrazoline and benzothiazole units were synthesized successfully through Suzuki coupling reactions. T
【机 构】
：
College of Chemistry
论文部分内容阅读
A series of novel fluorene-carbazole-based copolymers with pyrazoline and benzothiazole units were synthesized successfully through Suzuki coupling reactions. The molecular structures and thermal properties of these polymers were characterized by FT-IR,1H NMR, DSC and TGA. GPC results indicated that the weight-average molecular weight (Mw) and polydispersity of these polymers were in range (12,000-14,000) and (1.8-2.0), respectively. The two resulting polymers have high photoluminescence quantum efficiency implying that they may be promising candidates for polymer light-emitting diodes (PLEDs).
其他文献
Using Jordan-Winger transformation and finite Fourier transformation, the Hamiltonian of ⅩⅩ chain can be transformed to the diagonal form. If the total qubits
The perturbation to Lie symmetry and adiabatic invariants are studied. Based on the concept of higherorder adiabatic invariants of mechanical systems with actio
Molecular dynamics simulation studies on crambin, BPTI (298 K, in vacuo) have been performed by ABEEM/MM method.Some structural properties were discussed. The r
The title compound N-phenyl-2-deoxy-D-ribopyranosylamine featuring a single conformation and pyranose-ring has been synthesized and characterized by NMR spectru
Synthesis of symmetrical diaryl sulfoxides from arenes and thionyl chloride in the presence of a catalytic amount of iodine at room temperature under solvent-fr
The title complex 1·THF has been synthesized by the reaction of [HO-4,6-di-tBu-C6H2-2-CH2{CH(iprNCHCHN)}]Cl with NdCl3 in a 2:1 molar ratio in THF, and charact
Optimized calculations of 75 PCDDs and their parent DD were carded out at the B3LYP/6-31G* level by density functional theory (DFT) method. The structural param
The positively charged single walled carbon nanotubes (SWNTs+) were prepared by conjugating with -CONH-C6H12-NH3+.The double strand DNA (dsDNA) chains were load
By using the exact diagonalization method, a system of three electrons confined in a parabolic quantum dot in zero magnetic field is studied. The ground-state e
The n-octanol/water partition coefficients (lgKow) of 18 substituted anilines were determined at 25 ℃ by shake-flask method. The geometrical optimization of su