| 摘要 |
PURPOSE:To provide a functional ionen polymer capable of functioning as photochromic, electrochromic, thermochromic material etc. and having excellent mechanical properties, which is represented by a particular structural formula. CONSTITUTION:A functional ionen polymer represented by the formula 1 (wherein X is a polyether residue; R is a satd. or unsatd. aliphatic hydrocarbon group; and n is an integer of 2 or more). A preferable example of the polyether residue includes one having a 2-4C ether unit, particularly poly oxytetramethylene. With respect to R, the aliphatic satd. hydrocarbon group is preferably a 1-3 alkylene group which may have a methyl group, while the aliphatic hydrocarbon group having an unsatd. bond is pref. alkenylene, alkadienylene, alkatrienylene, and alkynylene capable of forming a conjugated structure with a pyridine ring. The anion represented by the A is a monovalent or divalent anion. |
