Characterization of self-doped conducting polyanilines bearing phosphonic acid and phosphonic acid monoester

Synthesis of phosphonic acid ring-substituted polyanilines via direct phosphonation to polymer main chains

“…This value is lower than that for PMAP. 28 This is consistent with the results of the ESR experiments. One of the major reasons is that the substitution ratio of the phosphonic acid moiety is low.…”

“…On the other hand, we have developed self-doped conducting PANIs, poly(2-methoxyaniline-5-phosphonic acid) (PMAP) 17,19 and poly(2-methoxyaniline-5-phosphonic acid monoethyl ester) (PMAPE), 18 which have phosphonic acid and phosphonic acid monoethyl ester, respectively, directly bonded to the main chain of PANI (Scheme 1b). 28 They were synthesized by oxidative polymerization of the corresponding monomers. These are the rst examples of PANI where phosphonic acid or phosphonic acid monoester directly attaches to the backbone.…”

Self-doped polyaniline derived from poly(2-methoxyaniline-5-phosphonic acid) and didodecyldimethylammonium salt

“…The presumption is given that the PMAP in PMAP-DDDMA is the halfoxidized form based on a previous report. 18 b See the ESI for details of the calculation.…”

“…Recently, we have successfully synthesized and characterized poly(2-methoxyaniline-5-phosphonic acid) (PMAP, Fig. 1a), [16][17][18] which is the rst example of polyaniline bearing phosphonic acid directly attached to its backbone. 16 Poly(2-methoxyaniline-5-phosphonic acid monoethyl ester) (PMAPE) was synthesized as well.…”

Polysulfonate-doped polyanilines—oxidation of ascorbic acid and dopamine in neutral solution

“…It is known that PANI doped with inorganic ions loses its conductivity for pH > 3 due to decrease of the number of protonated amine species. This drawback was overcome by two different strategies-so-called self-doping (i.e., chemical modification of the main polymer chain to obtain covalently bound acid moieties such as sulfonates or phosphonates) [6][7][8][9][10][11][12][13][14][15][16] and doping by monoorganic acid or poly(organic acid) anions that become steadily immobilized in the PANI structure [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34].…”