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Combining the structural characterization of solution crystals fabricated from thiophene-based conjugated polymers with different molecular structures and a theoretical investigation of the polymer conformational transformability leads to an interesting discovery of the relationship between the molecular structures and their crystallization behaviors. The chain folding or nonfolding behavior of thiophene-based...
A series of new π-conjugated poly(anthracene-alt-fluorene)s with X-shaped repeating units were synthesized. The polymers were easily soluble in common organic solvents and had good film-forming abilities. They showed high absolute PL quantum yields in the solid state. The electroluminescent devices based on the three X-shaped polymers with a configuration of ITO/PEDOT:PSS/polymer/LiF/Ca/Al emitted...
A new series of soluble 3,6-carbazole–fluorene–silole copolymers (PCz–F–S) with M w up to 52.1kDa were synthesized by Suzuki coupling reactions. Chemical structures and optoelectronic properties of the copolymers were characterized by elemental analysis, NMR, UV absorption, cyclic voltammetry, photoluminescence (PL), and electroluminescence (EL) spectra. The main absorption peaks of solutions...
A series of thermally responsive dendritic core–shell polymers were prepared based upon dendritic poly(ether-amide) (DPEA), modified with carboxyl end-capped linear poly(N-isopropylacrylamide) (PNIPAAm-COOH) or both PNIPAAm-COOH and carboxyl end-capped methoxy polyethylene glycol (PEG-COOH) in different ratios via an esterification process to obtain DPEA–PNIPAAm or DPEA–PNIPAAm–PEG. Their molecular...
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