Use Of Polymers Research Articles

Analysis of the biocompatibility of perfluoropolyether dimethacrylate network using an organotypic method

In this work, we have investigated the potential of perfluoropolyether (PFPE) polymers for use in biomaterial applications, especially in cell culture and tissue engineering. PFPE substrates were synthesized by the photocuring of liquid PFPE urethane dimethacrylate. These surfaces were then modified by ECM protein coatings and microstructuration, to promote cell adhesion and migration. The surface properties of PFPE and PDMS (used as a reference) samples were studied by static contact angle measurements and AFM imaging. Both polymer surfaces were hydrophobic, having sessile air–water contact angles superior to 100°. Collagen and fibronectin coatings were found to change the wettability of PFPE and PDMS samples. The biological testing of substrates was done using a liver organotypic culture to evaluate the migration and density of liver cells. The results over seven days of culture demonstrated that the migration and density of cells cultured under untreated PFPE were higher than the migration and density of cells cultured under PDMS. ECM protein coatings enhanced cell migration from liver explants cultured on PFPE or PDMS. Furthermore, these coatings were more efficient in the case of a PFPE sample. From a second series of tests, in which the PFPE was microstructured, it was found that microstructures promoted the formation of a 3D cell layer. These results indicate that PFPE polymers have a potential for use in the development of biomaterials for tissue engineering and cell culture.

Synthesis of Monodisperse Silica Particles Grafted with Concentrated Ionic Liquid-Type Polymer Brushes by Surface-Initiated Atom Transfer Radical Polymerization for Use as a Solid State Polymer Electrolyte.

A polymerizable ionic liquid, N,N-diethyl-N-(2-methacryloylethyl)-N-methylammonium bis(trifluoromethylsulfonyl)imide (DEMM-TFSI), was polymerized via copper-mediated atom transfer radical polymerization (ATRP). The polymerization proceeded in a living manner producing well-defined poly(DEMM-TFSI) of target molecular weight up to about 400 K (including a polycation and an counter anion). The accurate molecular weight as determined by a GPC analysis combined with a light scattering measurement, and the molecular weight values obtained exhibited good agreement with the theoretical values calculated from the initial molar ratio of DEMM-TFSI and the monomer conversion. Surface-initiated ATRP on the surface of monodisperse silica particles (SiPs) with various diameters was successfully performed, producing SiPs grafted with well-defined poly(DEMM-TFSI) with a graft density as high as 0.15 chains/nm2. Since the composite film made from the silica-particle-decorated polymer brush and ionic liquid shows a relatively high ionic conductivity, we have evaluated the relationship between the grafted brush chain length and the ionic conductivity.

Synthesis and application of ramie fiber soft modifier comprised of carboxylate-containing polymer

In effort to improve the soft properties of ramie fiber, we synthesized a carboxylate-containing polymer for use as a modifying agent, and successfully modified the ramie fiber in a strong base with the carboxylate-containing polymer. We applied Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) to investigate the structures of the raw and modified ramie fibers, and further investigated the mechanical and dyeing properties of the raw and modified ramie fibers. The results showed that the surface of the ramie fiber underwent significant changes due to the grafting reaction of the carboxylate-containing polymer and fiber. After the chemical modification, the flexural strength and initial modulus of the modified ramie fiber decreased while tensile strength increased, indicating that the softness of the modified ramie fiber increased though its tensile resistance remained high. In addition, the fixation of reactive dyes on the modified ramie fiber was larger than that of the reactive dyes on the raw ramie fiber. Our observations of mechanical properties and dye fixation indicated that the carboxylate-containing polymer is an effective and efficient soft modifier.

Synthesis, Characterization and TFT Characteristics of Diketopyrrolopyrrole Based Copolymer.

A novel diketopyrrolopyrrole (DPP) based low band gap polymer, poly[4,8-bis(triisopropylsilylethynyl) benzo[1,2-b:4,5-b']dithiophene-2,6-diyl-alt-[2,5-di-hexyl-3,6-dithiophen-2-ylpyrrolo[3,4-c]pyrrole-1,4-dione] (PTIPSBDT-DPP) is synthesized by Stille polymerization for use in thin film transistor (TFTs). The new polymer contain extended aromatic π-conjugated segments alternating with the DPP units and are designed to increase the free energy for charge generation to overcome current limitations in photocurrent generation. In this study we describe the synthesis, thermal stability, optical, electrochemical properties and TFT characteristics.

A composite approach: adapting emulsion templated polymers for use in bone tissue engineering

Event Abstract Back to Event A composite approach: adapting emulsion templated polymers for use in bone tissue engineering Aaron Z. Lee1, 2, Caitlin R. Langford1, Luis M. Rodriguez-Lorenzo3, 4, Oliver Bissinger5, Helmut Thissen2 and Neil R. Cameron1 1 Monash University, Materials Science and Engineering, Australia 2 Commonwealth Scientific and Industrial Research Organisation, Manufacturing Flagship, Australia 3 ICTP-CSIC, Polymeric Nanomaterials and Biomaterials, Spain 4 CIBER-BBN, Polymeric biomateriaasl group, Spain 5 Technical University of Munich, Oral and Maxillofacial Surgery, Germany Introduction: Synthetic scaffolds are envisioned as potential medical devices capable of aiding in the repair and regeneration of host tissues. Templating based on high internal phase emulsions represents a versatile route to the creation of highly porous architectures capable of supporting cell in growth. Recent developments include the use of click chemistry and surface functionalisation to tailor the presented environment towards a given application[1]. The current work investigates the formation of a polymer composite material based on the combination of an emulsion templated polymer in conjunction with hydroxyapatite for use in bone tissue engineering. Fabricated materials were physically characterised and evaluated for biocompatibility through in vitro culture of MG63 osteosarcoma cells. Materials and Methods: A monomer mixture consisting of a trithiol [trimethylopropane tris(3-mercaptopropionate)] and a multifunctional acrylate [dipentaerythritol penta/hexa-acrylate] dissolved in 1,2-dichloroethane with Hypermer B246 as the surfactant was used to form the polymer network. Photoinitiator was added to the mixture before adding water dropwise to a total volume of 140mL. Hydroxyapatite nanoparticles were incorporated into the monomer phase and dispersed before the addition of water. Emulsions were subsequently cured by exposure to UV irradiation to form the polyHIPE. Materials were characterised by FTIR. In vitro cell culture was performed on 200μm thick sections against Alvetex® with an initial seeding density of 0.5x106 cells and cultured in DMEM + 10%FBS for up to 21 days. Samples were then fixed and stained using histological techniques. Results and Discussion: Comparison between the FTIR spectra of the polyHIPE materials allowed evaluation of the incorporation of hydroxyapatite. Notably, this is evinced through the appearance of the peaks at 568cm-1 and 1030cm-1 in the composite which correspond directly to key peaks in the spectra for hydroxyapatite. Alvetex® scaffolds, based on polystyrene, were used as control substrates to evaluate the suitability of the culture conditions. No significant adverse effects were observed on this substrate or the native polyHIPE, and both supported cell attachment and growth for the duration of the culture period. At early time points, von Kossa staining experiments showed staining of the polyHIPE + 5wt% hydroxyapatite scaffolds. Even staining was observed albeit with darker regions corresponding to particle agglomerates. After 21 days in culture, the staining pattern changed dramatically with intense clusters being observed in the space taken up by cells while the uptake of stain in the scaffold itself was diminished. Ergo, the hydroxyapatite incorporated into the polyHIPE is available for redistribution by cells, potentially accelerating mineralisation. Conclusion: By dispersing hydroxyapatite through the monomer phase, it was possible to generate composite polyHIPE materials which retained their morphology while modulating the biological response. This provides another avenue for the modular design of polyHIPEs for biomaterial applications. Monash University; CSIRO

Role of Polymers as Gelling Agents in the Formulation of Emulgels

Background: The present review focuses on the critical piece of different polymers as gelling experts in the enumerating of emulgels. The concentrate moreover accomplishes the novel procedure for availability and appraisal parameters of emulgels. Methods: Late advances for the conscious use of gelling administrators in arrangement of various emulgels are consolidated. A variety of new polymers are evolving these days which are showing multi works basically as thickening agents and emulsifying agents. The new polymers have remarkable property of gellation that is useful in the formulation of stable dispersed systems. Research and overview works of various specialists were altogether considered and joined into the present study. Findings: Types, uses, method of preparation and a few evaluation tests for emulgels are given in this review. The use of gelling agents either alone or in combination in various emulgel formulations were also represented. Conclusions: The application of various gelling agent polymers in emulgel preparation and their numerous advantages provides the formulation scientists the wide choice of polymers for use in other pharmaceutical formulations. The favourable physical and rheological properties of emulgels with greater shelf life and better patient compliance than other delivery systems are useful in the formulation of topical dosage forms

Side-chain conjugated polymers for use in the active layers of hybrid semiconducting polymer/quantum dot light emitting diodes

Three monomers,M1–M3, with modified carbazole cores and styrene functionality were polymerized by RAFT. The polymers were then used in the active layers of hybrid polymer/quantum dot light emitting diodes.

Synthesis and characterization of fluorine atom substituted new BDT-based polymers for use in organic solar cells

A series of benzo[1,2-b:4,5-b′]dithiophene (BDT)-based donor–acceptor conjugated polymers were synthesized using a Stille cross-coupling reaction. The new fluorinated polymer (PBDTFT-ttTPD) contained 3,4-difluoroalkylthienyl benzo[1,2-b:4,5-b′]dithiophene (BDTFT) donor units and thienothienylthieno[3,4-c]pyrrole-4,6-dione (ttTPD) as acceptor units. A nonfluorinated alkylthienyl-substituted BDT-based polymer (PBDTT-ttTPD) was synthesized and its optoelectronic and photovoltaic properties were compared with those of PBDTFT-ttTPD. The number-averaged molecular weights (Mn) of PBDTT-ttTPD and PBDTFT-ttTPD were found to be 22,500 and 24,100g/mol, with dispersities of 2.3 and 2.0, respectively. The band gap energies of PBDTT-ttTPD and PBDTFT-ttTPD were 1.87eV and 1.89eV, respectively. The HOMO levels of PBDTT-ttTPD and PBDTFT-ttTPD were −5.68eV and −5.78eV, respectively. These results indicated that the inclusion of 3,4-difluorothienyl-BDT units in the polymers provided a very effective approach to lowering the HOMO and LUMO energy levels. The field-effect mobilities of PBDTT-ttTPD and PBDTFT-ttTPD were determined to be 9.2×10−4cm2V−1s−1 and 2.7×10−4cm2V−1s−1, respectively. A polymer solar cell device prepared using PBDTFT-ttTPD as the active layer was found to exhibit a power conversion efficiency (PCE) of 3.27% with an open circuit voltage of 0.79V under AM 1.5G (100mW/cm2) conditions.

FTIR investigations on hydrolysis and condensation reactions of alkoxysilane terminated polymers for use in adhesives and sealants

Transmission FTIR was successfully applied to monitor the hydrolysis reaction of an alkoxysilane-terminated polybutadiene model polymer for a selection of catalytic and co-catalytic systems under controlled environmental conditions (23°C, 50% relative humidity). Monitoring of the condensation reaction of the model polymer via FTIR spectroscopy was limited to qualitative evaluation. The aim of this work was to find a new tin-free alkoxysilane crosslinking catalyst, active at room temperature as an alternative to dibutyltin dilaurate (DBTDL). Hydrolysis rates (k), hydrolysis turn overs, and tack free times were determined for the model system with added water and in the presence of different catalysts, such as DBTDL, diisobutoxy bis(ethylacetoacetato) titanate (Tyzor IBAY), 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), boron trifluoride monoethylamine (BF3-MEA) and tris(pentafluorophenyl)borane (BCF) in concentrations of 3mol%. For BCF a high catalytic activity was observed for both, the alkoxysilane hydrolysis and the condensation reaction. The simultaneous use of BCF and Tyzor IBAY was found to increase hydrolysis reaction׳s turn overs significantly. Thereby a highly efficient co-catalytic system was established, which was found to be active at room temperature showing potential as a new, tin-free alkoxysilane crosslinking catalyst.

Linear solubilizing side chain substituents enhance the photovoltaic properties of two-dimensional conjugated benzodithiophene-based polymers

In this study we synthesized medium-band gap, two-dimensional (2-D) conjugated polymers comprising electron-rich benzo[1,2-b:4,5-b′]dithiophene (BDT) units presenting conjugated thiophene (T) side chains and electron-deficient alkoxy-modified 2,1,3-benzooxadiazole (BO) moieties. We introduced various solubilizing substituents—linear alkyl, alkoxy, and alkythio units—on the thiophene side chains to obtain a series of 2-D conjugated D–π–A polymers: PBDTT-C-BO, PBDTT-O-BO, and PBDTT-S-BO. The solubilizing substituents of the BDT units altered the solubility, conformations, and electronic properties of the synthesized conjugated polymers, allowing tuning of the photovoltaic properties when blended with fullerenes. We investigated the effects of the different linear solubilizing substituents of the BDT units on the structural, optical, and electronic properties (e.g., band gap energies) of the resulting 2-D conjugated polymers, as determined from quantum-chemical calculations, UV–Vis absorption spectra, and grazing-incidence X-ray diffraction. Atomic force microscopy and transmission electron microscopy images revealed the morphologies of active layers comprising these 2-D conjugated polymers and the fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). Through rational structural modifications of the solubilizing substituents in the 2-D conjugated polymers with alkoxy, alkythio or alkyl units, the resulting PCEs varied from 5.4 to 7.5%. A polymer solar cell based on a blend of PBDTT-C-BO and PC71BM exhibited the best photovoltaic performance among our three studied systems, with a high short-circuit current density (Jsc) of 15.7 mA cm−2 and a power conversion efficiency of 7.5%, without the need for any processing additives or post-treatment processes, highlighting the importance of careful selection of appropriate solubilizing substituent that attached to the donor segments when designing efficient D–π–A polymers for use in solar cells.

Tensile properties, morphology, and electrical conductivity of (Poly[vinyl chloride])/(Poly[ethylene oxide])/Polyaniline conductive films

The effect of polyaniline (PAni) on the tensile properties, electrical conductivity, morphology, and thermal degradation of (poly[vinyl chloride])/(poly[ethylene oxide])/PAni (PVC/PEO/PAni) conductive films was studied. The tensile strength and modulus of elasticity of PVC/PEO/PAni conductive films decreased with an increase in the PAni loading. At high PAni content, the PVC/PEO/PAni conductive films exhibited higher electrical conductivity and thermal stability than lower filler loadings. A scanning electron micrograph morphology study showed that the PAni could significantly improve interaction at the interface of the filler into the PVC/PEO phase. The PVC/PEO/PAni conductive films are known to interact with chemical samples while maintaining good compatibility and good application of conductive polymer for use in gas sensors. J. VINYL ADDIT. TECHNOL., 24:44–49, 2018. © 2015 Society of Plastics Engineers

Branching structure and strain hardening of branched metallocene polyethylenes

There have been a number of studies of a series of branched metallocene polyethylenes (BMPs) made in a solution, continuous stirred tank reactor (CSTR) polymerization. The materials studied vary in branching level in a systematic way, and the most highly branched members of the series exhibit mild strain hardening. An outstanding question is which types of branched molecules are responsible for strain hardening in extension. This question is explored here by use of polymerization and rheological models along with new data on the extensional flow behavior of the most highly branched members of the set. After reviewing all that is known about the effects of various branching structures in homogeneous polymers and comparing this with the structures predicted to be present in BMPs, it is concluded that in spite of their very low concentration, treelike molecules with branch-on-branch structure provide a large number of deeply buried inner segments that are essential for strain hardening in these polymers.

Synthesis and photovoltaic properties of 2,6‐bis(2‐thienyl) benzobisazole and 4,8‐bis(thienyl)‐benzo[1,2‐B:4,5‐B′]dithiophene copolymers

ABSTRACTIn an effort to design efficient low‐cost polymers for use in organic photovoltaic cells the easily prepared donor–acceptor–donor triad of a either cis‐benzobisoxazole, trans‐benzobisoxazole or trans‐benzobisthiazole flanked by two thiophene rings was combined with the electron‐rich 4,8‐bis(5‐(2‐ethylhexyl)‐thien‐2‐yl)‐benzo[1,2‐b:4,5‐b′]dithiophene. The electrochemical, optical, morphological, charge transport, and photovoltaic properties of the resulting terpolymers were investigated. Although the polymers differed in the arrangement and/or nature of the chalcogens, they all had similar highest occupied molecular orbital energy levels (−5.2 to −5.3 eV) and optical band gaps (2.1–2.2 eV). However, the lowest unoccupied molecular orbital energy levels ranged from −3.1 to −3.5 eV. When the polymers were used as electron donors in bulk heterojunction photovoltaic devices with PC71BM ([6,6]‐phenyl C71‐butyric acid methyl ester) as the acceptor, the trans‐benzobisoxazole polymer had the best performance with a power conversion efficiency of 2.8%. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 316–324

Synthesis and evaluation of NA-PHEMAH polymer for use as a new stationary phase in high-temperature liquid chromatography

In order to develop more stable packing materials for high-temperature liquid chromatography (HTLC), a new stationary phase, 1-naphthyl attached poly(2-hydroxyethylmethacrylate-N-methacryloyl-(L)-histidine-methyl-ester) (NA-PHEMAH) polymer was synthesized in this work. The NA-PHEMAH polymer particles with 2.0–2.1μm in diameter were then evaluated for use as a stationary phase in high-temperature liquid chromatography. Separation of vanillin, ethyl vanillin, coumarin, 6-methylcoumarin, and 7-methylcoumarin was achieved on this NA-PHEMAH column using HTLC at 125–200°C with 2% or 5% methanol in the mobile phase. Successful separation of the test analytes was also obtained using subcritical water chromatography (SBWC) at 200°C. Evaluation of the long-term stability of the NA-PHEMAH stationary phase revealed that the column was stable for over 500h at 150°C. These results demonstrate that the new NA-PHEMAH stationary phase is suitable for high-temperature liquid chromatography separations due to its excellent stability at high temperatures.

Enhanced antibacterial activity of NR latex gloves with raspberry-like PMMA-N,N,N-trimethyl chitosan particles

Raspberry-like poly(methyl methacrylate) (PMMA) latex particles stabilized with silica nanoparticles (SiNPs) were prepared via the Pickering emulsion polymerization for use as substrate of N,N,N-trimethyl chitosan (TMC) adsorption. With the aims to simultaneously reduce the surface friction and improve the antibacterial activity of rubber gloves, the synthesized PMMA-SiNPs(TMC) particles were electrostatically deposited onto a sulphur prevulcanized natural rubber (SPNR) latex film. From SEM and AFM analyses, the results showed the highest surface coverage of PMMA-SiNPs(TMC) particles on the surface of SPNR film of 41% and the surface roughness of 69nm. The coated SPNR film exhibited effective antibacterial activity especially against S. aureus. Therefore, this investigation would be useful for fabrication of special gloves with antibacterial properties.

New amorphous perfluoro polymers: perfluorodioxolane polymers for use as plastic optical fibers and gas separation membranes

To address the need for perfluoro polymers with higher Tg, we have prepared and characterized various perfluorodioxolane monomers via direct fluorination of the hydrocarbon precursors. These monomers were readily polymerized in bulk or in solution initiated by perfluorodibenzoyl peroxide. The polymers obtained have relatively high Tg(~160°C) and exhibited low material dispersion. These polymers are completely amorphous and soluble in fluorinated solvents. The polymers are also chemically and thermally stable (Tg > 300°C). Thus, these perfluorodioxolane polymers may be used as plastic optical fiber material where high Tg is required, such as in automobile and aircraft application. These perfluorodioxolane polymers were also investigated for use as gas separation membrane. Among these polymers, the copolymer of perfluoro (2‐methylene‐1,3‐dioxolane) and perfluoro (2‐methylene‐4,5‐dimethyl dioxolane) showed superior gas separation performance compared with the commercial perfluoro polymers for a number of gas pair, including CO2/CH4, He/CH4, H2/CH4, and N2/CH4. Copyright © 2015 John Wiley & Sons, Ltd.

Utilization of a Non-Ionic Surfactant in the Fabrication of Water-Borne Polymeric Semiconductor Nanoparticles for High-Performance, Green Organic Electronics

We report a novel method for synthesizing water-borne nanoparticles of semiconducting polymers for use in environmentally benign processes involving organic electronics, without compromising the high charge carrier mobility of the polymeric semiconductors. Non-ionic surfactants were utilized as a key material to fabricate aqueous nanoparticles of semiconducting polymers via a miniemulsion process for the first time. To maximize the charge transport between polymer nanoparticles, the surface adsorption density and polarity of the non-ionic surfactant were carefully controlled. By introducing such non-ionic surfactants onto a donor-acceptor type polymeric semiconductor with an inherently high charge carrier mobility, we could realize a high-mobility (>0.5 cm2/Vs) water-borne polymer field effect transistor. Structural analyses based on X-ray diffraction showed that films consisting of polymer nanoparticles still maintained some degree of edge-on crystalline orientation, which was enough to render high charge carrier mobility.

염 환경 하에서 Bacillus sp. SH1RP8와 Polyacrylate Polymers가 작물 생장에 미치는 영향에 관한 연구

This study aimed to evaluate the potential plantgrowth promoting effects of potassium polyacrylate, a superabsorbent polymer, and Bacillus sp. SH1RP8, a family of plant-growth-promoting bacteria. Potassium polyacrylate was selected as the polymer for use due to its high molecular weight and its ability to retain and continuously supply moisture. Plant-growth-promoting rhizobacteria (PGPR) were isolated from the soil and applied to plants growing in dry environments, such as saline conditions. The moisture absorption and retention abilities of potassium polyacrylate were evaluated at a high temperature (50°C) and in a dry condition, during which time the polymer showed a water retention potential of 19606.07% after 29 days. To overcome the reaming problem in the soil environment, natural polymers (such as cellulose) were mixed with the potassium acrylate. The shoot growths of Peucedanum japonicum Thunb and Arundo donax were significantly enhanced when treated with the mixture of the isolated rhizosphere bacterium SH1RP8 and potassium polyacrylate (63.5 and 124.3%, respectively).

Eudragit FS 30D as a potential polymer for use in the technology of preparing matrix tablets contain metronidazole – an experimental and mathematical modeling study

Abstract The aim of this study was to examine the usefulness of a pH-dependent copolymer - Eudragit FS - for employment in the technology of preparing modified release metronidazole matrix tablets. In addition, in our work, Eudragit RL and Eudragit RS were included in the composition of some formulations, as well as sodium lauryl sulfate and polysorbate 80. As part of the study of the dissolution test, the similarity coefficient (f2) for the obtained profiles was calculated, and mathematic models were used to estimate the kinetics and mechanism of active substance release. In our work, it was observed that the inclusion of polymer Eudragit FS alone in the tablet composition ensured a modified release of the active substance for 10 h. After this time period, the amount of metronidazole determined in the acceptor fluid was 71% - 81% of the declared dose. Modification of the composition by the addition of surfactants resulted in an increased release of the active substance of up to 98%. This effect was dependent on the type of surfactant and its quantitative ratio to the Eudragit FS. Similar release profiles were obtained for tablets containing Eudragit RS and sodium lauryl sulfate, as well as Eudragit RS and polysorbate 80. Depending on the composition of tablets, metronidazole release proceeded in accordance with either first or second-order kinetics. We calculated as well, that the differing masses of Eudragit FS in the studied formulations correlates with the order of release kinetics (p < 0.002). Such an effect was validated using the Weibull model, wherein, in all the studied formulations, the release rate was seen as a decreasing function of time. An analysis of data according to the Ritger-Peppas model and the Peppas-Sahlin model for some formulations, indicated that the mechanism of active substance release from matrix tablets is diffusion.

Click Functionalization of Aromatic Polymers for Organic Electronic Device Applications

The [2 + 2] cycloaddition–retroelectrocyclization between electron‐rich alkynes and tetracyanoethylene (TCNE)/7,7,8,8‐tetracyanoquinodimethane (TCNQ), yielding the tetracyanated donor–acceptor (D–A) chromophores, is a new class of click chemistry reactions, due to the high efficiencies, no byproducts, and applicability to polymer syntheses. As compared to the conventional click reactions represented by the Cu(I)‐catalyzed azide–alkyne cycloaddition (CuAAC), these new click reactions provide fascinating optoelectronic properties originating from the D–A chromophore structures formed. A series of π‐conjugated aromatic polymers containing electron‐rich alkynes were successfully functionalized by these click reactions, producing novel organic or organometallic materials featuring conducting and photovoltaic properties in thin film electronic devices. This review article describes the recent results of the author's research group. The power of click chemistry is highlighted by the polymer synthesis using CuAAC. This is followed by the alkyne–TCNE/TCNQ postfunctionalization to produce high‐performance aromatic polymers for use as active components in organic electronic devices, such as thin film transistors, organic solar cells and polymer memory devices. image