Using Suzuki polycondensation, we have synthesized polyhedral silsesquioxane-tethered polyfluorene copolymers, poly(9,9‘-dioctylfluorene- co -9,9‘-bis[4-( N, N -dipolysilsesquioxane)aminophenyl]fluorene) ( PFO – POSS ), that have well-defined architectures. This particular PFO – POSS molecular architecture increases the quantum yield of polyfluorene significantly by reducing the degree of interchain aggregation; in addition, these copolymers exhibit a purer and stronger blue light by preventing the formation of keto defects.
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Chou et al. (2005) studied this question.
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