Chemical deposition of conducting polymers

Research pertaining to conductive polymers has gained significant traction in recent years, and their applications range from optoelectronics to material science. For all intents and purposes, conductive polymers can be described as Nobel Prize-winning materials, given that their discoverers were awarded the Nobel Prize in Chemistry in 2000. In this review, we seek to describe the chemical forms and functionalities of the main types of conductive polymers, as well as their synthesis methods. We also present an in-depth analysis of composite conductive polymers that contain various nanomaterials such as graphene, fullerene, carbon nanotubes, and paramagnetic metal ions. Natural polymers such as collagen, chitosan, fibroin, and hydrogel that are structurally modified for them to be conductive are also briefly touched upon. Finally, we expound on the plethora of biomedical applications that harbor the potential to be revolutionized by conductive polymers, with a particular focus on tissue engineering, regene...

Conductive Polymers: Opportunities and Challenges in Biomedical Applications

Bacterial cellulose (BC) nanofiber-supported polyaniline (PANI) nanocomposites have been synthesized via in situ polymerization of aniline onto BC nanofibers scalfold. Optimized preparation conditi...

Bacterial Cellulose Nanofiber-Supported Polyaniline Nanocomposites with Flake-Shaped Morphology as Supercapacitor Electrodes

Heterogeneous preparation of cellulose–polyaniline conductive composites with cellulose activated by acids and its electrical properties

Conductimetric membrane strip immunosensor with polyaniline-bound gold colloids as signal generator.

Polypyrrole/crosslinked cellulose conductive composite films were prepared by vapor-phase polymerization of pyrrole on the silicon crosslinked cellulose network using anhydrous ferric chloride as oxidant. The properties of the composite film depend on their synthetic conditions such as the amount of ferric chloride and tetraethyl orthosilicate crosslinker, the reaction time, the solvent, etc. Interestingly, it was found that the conductivity was strongly affected by the nature of the solvents and their amount in pyrrole solution. When the weight ratio of methanol/pyrrole is 1 : 1, the conductivity was as high as 1.1 S/cm, increased by two orders of magnitude compared to that without solvent, and the mechanical properties was good. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1368–1373, 2001

Conducting composite film based on polypyrrole and crosslinked cellulose

Polyaniline/crosslinked cellulose conductive interpenetrating polymer networks (IPNs) were prepared by oxidative polymerization of aniline within the self-synthesized cellulose network using ammonium persulphate as oxidant. The conductivity of the IPN increases and then decreases with decrease in the aniline/(NH 4 ) 2 S 2 O 8 ratio, with increase in the HCl/aniline ratio, with increase in aniline content, as well as with increase in reaction time. In addition, the conductivity of the films strongly depends on the amount of tetraethyl orthosilicate crosslinker. In comparison with polyaniline/cellulose acetate composites, the conductivity increases by an order of one to two magnitudes in spite of the lower polyaniline content in this work.

Conducting IPN based on polyaniline and crosslinked cellulose

A new conducting composite of a secondary crosslinked interpenetrating polymer network (IPN) was first designed and synthesized by chemically incorporating a rigid conducting polymer within the flexible crosslinked network and forming the link between them. The new conducting composite produced with a low content of polypyrrole exhibited unusually good conductivity, processability, and mechanical properties, and the conductivity was not influenced by the formation of an IPN.

Design and synthesis of conducting secondary crosslinked interpenetrating polymer network

Silicon secondary crosslinked IPN based on poly(methyl acrylate-co-hydroxylethyl acrylate) and SiO2

Polypyrrole/crosslinked poly(styrene-butyl acrylate-hydroxyethyl acrylate) (PSBH) conductive composite films were designed to obtain high conductivity and good mechanical properties, and were prepared by vapor-phase polymerization of pyrrole within the silicon-crosslinked PSBH network using anhydrous ferric chloride as oxidant. The properties of the conducting composite film, such as conductivity, were strongly dependent on their synthetic conditions, such as the amount of ferric chloride and tetraethyl orthosilicate and the nature and weight ratio of the solvent in pyrrole solution. Above all, the most interesting point was the effect that solvent in pyrrole solution had on the conductivity. Using methanol as solvent, the conductivity was as high as 15 S/cm, increased by two orders of magnitude as compared with that without solvent. The conducting composite exhibited good mechanical properties (tensile strength, 10.3 MPa; Young's modulus, 178.9 MPa; elongation yield, 170%).

Tiren Gu

Papers

Conducting composite film based on polypyrrole and crosslinked cellulose

Conducting IPN based on polyaniline and crosslinked cellulose

Design and synthesis of conducting secondary crosslinked interpenetrating polymer network

Silicon secondary crosslinked IPN based on poly(methyl acrylate-co-hydroxylethyl acrylate) and SiO2

Conducting composite films based on polypyrrole and crosslinked poly(styrene‐butyl acrylate‐hydroxyethyl acrylate)