Novel polyhydroxyalkanoate, its production method, charge control agent containing the polyhydroxyalkanoate, toner binder and toner, and image forming method and image forming apparatus using the toner

摘要

The present invention provides a novel PHA comprising a unit containing thioether with high reactivity, and its production method. The present invention also provides polyhydroxyalkanoate (PHA) comprising units having defined chemical formulas (1) and (2), and at least one of four units having defined chemical formulas (3), (4), (5) and (6); its production method; a charge control agent containing the PHA; a toner binder containing the charge control agent; an electrostatic latent image developing toner; and an image forming method and an image forming apparatus using the electrostatic latent image developing toner.