Polypyrroles copolymers

Several simple substituted polypyrroles and polypyrrole copolymers have been prepared and studied <83MI 204-02,94H(37)2069). For example, poly(3-alkylpyrroles) have been prepared by electrochemical polymerization and found to have conductivities comparable to that of PPy itself <89CC475,... 

Figure 5.18 Synthesis of a water soluble self-doped polypyrrole copolymer, poly (pyrrole-co-AMP-co-APMA). (Reproduced from Journal of Applied Polymer Science, 2001, 79, 86. Reprinted with permission of John Wiley 6c Sons, Inc.)...

This chapter is divided into two main parts polythiophene copolymers and polypyrrole copolymers. Each part reviews the random copolymerization of the heterocyclic monomer and important derivatives, principally those with substituents at the 3-position of thiophene and at the 1- and 3-positions of pyrrole. Alternating, block and graft copolymers are covered in both segments. Because applications of conducting polymers are reviewed in Volume 4, only applications unique to specify copolymers are covered here. In addition, a few theoretical studies dealing with conducting copolymers are reviewed. 

Polypyrrole copolymers with perfectly alternating units of pyrrole with another single heterocycle are not known. Alternating copolymers of pyrrole with bithiophene are prepared by electrochemical polymerization of the three-membered oligomer, 2,5-di-2-(thienyl)-pyrrole [11,12]. Even the homopolymerization of 2-thienylpyrrole does not really lead to alternating units of pyrrole and thiophene because this monomer must dimerize after oxidation. What results is a copolymer of bipyrrole and bithiophene because of the different values for the oxidation potentials of pyrrole, thiophene, bithiophene, etc. 

Arslan A, Kiralp S, Toppare L, Yagd Y (2005) Immobilization of tyrosinase in polysiloxane/ polypyrrole copolymer matrices. Int J Biol Maraomol 35 163-167... 

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