Quaternary poly(iso) quinolinediyl and preparation thereof
AssigneeTokyo Institute of Technology
InventorsTakakazu Yamamoto, Takaki Kanbara
Life of this patent
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Abstract
A quaternary (iso)quinolinediyl polymer having a degree of polymerization of at least 5 is produced from an (iso)quinoline polymer by reacting with an alkyl halide and quaternizing the nitrogen atom in ring. Since it is soluble in water and organic solvents, this polymer can be shaped by a dry-process into fibers, films or the like, and had clear change of its color by chemical and electrochemical oxidation reduction.
Claims4
A quaternary (iso)quinolinediyl polymer comprising, as a recurring structural unit, a divalent group represented by the following chemical formula (1) or (2):
- ##STR10## wherein m+n is an integer of at least 5 R represents an alkyl group, and X represents a halogen atom, and which divalent group is derived from a condensed heterocyclic compound in which nitrogen atom in ring is alkylated, quaternary (iso)quinoline by eliminating two hydrogen atoms at arbitrary positions thereof.
A process for preparing a quaternary (iso)quinolinediyl polymer comprising, as a recurring structural unit, a divalent group represented by the following chemical formula (1) or (2):
- ##STR11## wherein m+n is an integer of at least 5, R represents an alkyl group and X represents a halogen atom, which process comprises reacting an (iso)quinoline polymer comprising, as a recurring structural unit, a divalent group represented by the following general formula (3) or (4):
- ##STR12## wherein x or y is an integer of over 5, and which divalent group is derived from (iso)quinoline, by eliminating two hydrogen atoms at arbitrary positions thereof, with an alkyl-halide.
A fiber or film composed of a quaternary (iso)quinolinediyl polymer comprising, as a recurring structural unit, a divalent group represented by the following chemical formula (1) or (2):
- ##STR13## wherein m+n is an integer of at least 5 R represents an alkyl group and x represents a halogen atom, and which divalent group is derived from a condensed heterocyclic compound in which nitrogen atom in ring is alkylated, quaternary (iso)quinoline by eliminating two hydrogen atoms at arbitrary positions thereof.
An electrochromic element comprising a quaternary (iso)quinolinediyl polymer comprising, as a recurring structural unit, a divalent group represented by the following chemical formula (1) or (2):
- ##STR14## wherein m+n is an integer of at least 5 R represents an alkyl group and X represents a halogen atom, and which divalent group is derived from a condensed heterocyclic compound in which nitrogen atom in ring is alkylated, quaternary (iso)quinoline by eliminating two hydrogen atoms at arbitrary positions thereof.
Dependencies are inferred from the claim text.