Synthesis of poly[1,3-diphenyl-5-(p-vinylphenyl)-2-pyrazoline]

Fujio Iinuma, Hiroshi Mikawa, Yasuhiko Shirota

doi:10.1007/bf01045417

Introduction Interest has been expanding in 1,3,5-triphenyl-2pyrazoline (TPP) and its derivatives. Recent studies have shown that these compounds possess some interesting physical and chemical properties. They are strongly fluorescent (LEAVER, RIVETT 1974; STRAHLE et al. 1976), for which the nearly planar conjugated n-system Ar-N-NZC-Ar in the pyrazoline ring is responsible. They are photoconductive, and readily form a glassy state at near or above room temperature which is kept for quite a long period of time (SANO et al. 1976). They have been used as fluorescent whitening agents for wool and certain synthetic fibers (WAGNER et al. 1966). Some derivatives of TPP have found a successful application for use in electrophotography (MELZ et al. 1977).

Synthesis of poly[1,3-diphenyl-5-(p-vinylphenyl)-2-pyrazoline]

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