Polyhydroxyalkanoate having amide group and sulfonic group, method of producing the same, charge controlling agent containing novel polyhydroxyalaknaote, toner binder, toner, and image forming apparatus using the toner

Abstract

A polyhydroxyalkanoate comprises a unit of formula (1): —(O—CH((CH)SASOR)CHC(═O))— wherein R is selected from the group consisting of OH, a halogen atom, ONa, OK, OCHand OCH; A represents a substituted or unsubstituted aliphatic hydrocarbon structure; m is an integer number selected from 1 to 8; and in the case where a plurality of units exist in the same molecule, R, A and m in one unit can be different from them in another unit respectively. A method of producing the polyhydroxyalkanoate comprises the step of reacting a polyhydroxyalkanoate comprising a unit of formula (18): —(O—CH((CH)Br)CHC(═O))—, wherein m is an integer number selected from 1 to 8, and in the case where a plurality of units exist in the same molecule, m in one unit can be different from that in another unit, with at least one type of compounds of formula (19): HS-A-SORwherein Ris selected from the group consisting of OH, a halogen atom, ONa, OK, OCHand OCHand Ais a substituted or unsubstituted aliphatic hydrocarbon structure, and in the case where a plurality of types of compounds exist in the same molecule, Rand Ain one unit can be different from them in another unit respectively.