Conductive polymer blends prepared by in situ polymerization of pyrrole: A review

Abstract

Electrically conductive polymer blends can be prepared by in situ polymerization of pyrrole within another polymer matrix. This may be accomplished using either electrochemical or chemical oxidative polymerization. This paper reviews the literature on this subject.

Highly Stretchable and Conductive Polymer Material Made from Poly(3,4‐ethylenedioxythiophene) and Polyurethane Elastomers

“…The threshold concentration for conductive polymers in blends to permit substantial conductance is often given as 16 vol % although lower values have been reported. [13,14] The threshold of 16 vol % corresponds to 23 wt % PEDOT in A highly elastic and stretchable conductive polymer material resulted from blending the conductive polymer poly(3,4-ethylenedioxythiophene):p-tosylate and an aliphatic polyurethane elastomer. The blend inherited advantageous properties from its constituents, namely high conductivity of 120 S cm -1 from its conductive polymer component, and elastomeric mechanical properties resembling those of the polyurethane, including good adhesion to various substrates.…”

“…This is in agreement with experimental results obtained for other kinds of conductive polymer blends. [13,14] Adlayers of the 40 % and 50 % PEDOT/PUR blends applied to a piece of PUR (without being sandwiched) exhibited optical changes after 50 % strain and relaxation with the surface layers becoming slightly opaque. This was most explicit for the 50 % PEDOT samples and to some extent the 40 % PEDOT samples, but not observed for the 33 % PEDOT samples.…”

A facile and novel approach toward synthetic polypyrrole oligomers functionalization of multi-walled carbon nanotubes as PtRu catalyst support for methanol electro-oxidation

“…The first step of the reaction is the protonation of pyrrole to form a radical cation, which then reacts with another monomer molecule to form a dimer [27]. The single charged dimer can then lose one protons to rearomatize and form a stable dimer, which is more easily protonation than the monomer and may participate in additional radical coupling reactions to form oligomers and eventually polymer.…”

Conducting Composites of Polyurethane Resin and Polypyrrole: Solvent‐Free Preparation, Electrical, and Mechanical Properties

“…[2] The polymers can be prepared by electrochemical [5] or chemical [6][7][8] oxidation of the corresponding monomers, the chemical oxidation being especially suited for in-situ preparation of conducting PUR composites. Though numerous composites of nonconducting and selfconducting polymers are known, [9][10][11][12][13][14] up to the present, the use of PUR as a nonconducting polymer matrix has rarely been described. [15][16][17] Although the preparation of composites with linear thermoplastic polyurethane (TPU) is easy and can be carried out using different methods with the aid of solvents, [2,[18][19][20][21][22][23][24][25][26][27][28][29] none of these methods is suitable for preparation of composites with cross-linked polyurethanes.…”