Polyaniline graft copolymers

Jung JW, Lee JU, Jo WH (2009) High-efficiency polymer solar cells with water-soluble and self-doped conducting polyaniline graft copolymer as hole transport layer. J Phys Chem C 114 633... 

Title Method of Making Novel Water-Soluble and Self-doped Polyaniline Graft Copolymers... 

Preparation of Self-doped Polyaniline Graft Copolymer... 

W. J. Bae, K. H. Kim, Y. H. Park, W. H. Jo, A novel water-soluble and self-doped conducting polyaniline graft copolymer, Chemical Communications 2003, 2768. 

Polyaniline has been grafted onto the poly(styrenesulfonic acid-co-aminostyrene) backbone using aniline, ammonium persulfate, and hydrochloric acid. The graft copolymer is water soluble and self-doping and can be used in electrical and marine anticorrosive applications. 

G. Abbati, E. Carone, L. D llario, A. Martinelli, Polyurethane-polyaniline conducting graft copolymer with improved mechanical properties, Journal of Applied Polymer Science 2003, 89, 2516. 

F. R. De Risi, L. D llario, A. Martinelli, Synthesis and characterization of epoxidized polybutadiene/polyaniline graft conducting copolymer, Journal of Polymer Science Part A — Polymer Chemistry 2004, 42, 3082. 

Other workers have prepared poly(Af-methyl-pyrrole)/poly(biphenol-A-carbonate) (PC) using this approach. The electrodes were dip-coated with the PC and then electropolymerization was induced. Thermogravimetic analysis verified that a graft copolymer was produced. A similar procedure has been used to prepare polyaniline composites with the same host polymer. The in situ electrochemical polymerization process has also been used to prepare polyacrylonitrile/PPy composite films. i... 

Water can be removed from methanol by a membrane of polyvinyl alcohol cross-linked with polyacrylic acid, with a separation factor of 465.204 A polymeric hydrazone of 2,6-pyridinedialdehyde has been used to dehydrate azeotropes of water with n- and /-propyl alcohol, s- and tort butyl alcohol, and tetrahydrofuran.205 The Clostridium acetobutylicum which is used to produce 1-butanol, is inhibited by it. Pervaporation through a poly(dimethyl-siloxane) membrane filled with cyclodextrins, zeolites, or oleyl alcohol kept the concentration in the broth lower than 1% and removed the inhibition.206 Acetic acid can be dehydrated with separation factors of 807 for poly(4-methyl-l-pentene) grafted with 4-vinylpyridine,207 150 for polyvinyl alcohol cross-linked with glutaraldehyde,208 more than 1300 for a doped polyaniline film (4.1 g/m2h),209 125 for a nylon-polyacrylic acid membrane (5400 g/m2h), and 72 for a polysulfone.210 Pyridine can be dehydrated with a membrane of a copolymer of acrylonitrile and 4-styrenesulfonic acid to give more than 99% pyridine.211 A hydrophobic silicone rubber membrane removes acetone selectively from water. A hydrophilic cross-linked polyvinyl alcohol membrane removes water selectively from acetone. Both are more selective than distillation.212... 

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