Flexible electrically conductive films based on nanofibrillated cellulose and polythiophene prepared via oxidative polymerization.

Industrial ecology, sustainable manufacturing, and green chemistry have been considered platform-based approaches to the reduction of the environmental footprint. Recently, nanofibrillated cellulose (NFC) has gained significant interest due to its mechanical properties, biodegradability, and availability. These outstanding properties of NFC have encouraged the development of a more sustainable substrate for electronics. In this context, the combination of NFC and conductive polymers may create a new class of biocomposites to be used in place of conventional electronics which are not optimally designed for use in flexible and mechanically robust devices. In this study, polythiophene was grafted onto nanocellulose surface at appropriate reaction times to obtain a strong, flexible, foldable films with capacity for electrical conductivity. Nanocomposites films were synthesized by a one-step reaction in which a 3-methyl thiophene monomer was oxidatively polymerized onto nanocellulose backbone. The nature of the fabricated NFC films changed from insulator to semiconductor material upon oxidative polymerization.

[1]  Keita Sakakibara,et al.  Polythiophene-cellulose composites: synthesis, optical properties and homogeneous oxidative co-polymerization , 2011 .

[2]  S. K. Tiwari,et al.  Materials chemistry and the futurist eco-friendly applications of nanocellulose: Status and prospect , 2018, Journal of Saudi Chemical Society.

[3]  E. Rivera,et al.  Synthesis and Characterization of Novel Polythiophenes Containing Pyrene Chromophores: Thermal, Optical and Electrochemical Properties , 2016, Molecules.

[4]  R. Sugimoto,et al.  Surface functionalization of cellulose with poly(3-hexylthiophene) via novel oxidative polymerization. , 2018, Carbohydrate polymers.

[5]  J. Desbrières,et al.  Chitosan-graft-polyaniline-based hydrogels: elaboration and properties. , 2010, Biomacromolecules.

[6]  Ali Eftekhari,et al.  Nanostructured conductive polymers , 2010 .

[7]  S. Cartmell,et al.  Conductive polymers: towards a smart biomaterial for tissue engineering. , 2014, Acta biomaterialia.

[8]  Lele Peng,et al.  Nanostructured conductive polymers for advanced energy storage. , 2015, Chemical Society reviews.

[9]  Xueren Qian,et al.  Highly thermostable, flexible, and conductive films prepared from cellulose, graphite, and polypyrrole nanoparticles. , 2015, ACS applied materials & interfaces.

[10]  Jiawang Zhou,et al.  Exciton Conformational Dynamics of Poly(3-hexylthiophene) (P3HT) in Solution from Time-Resolved Resonant-Raman Spectroscopy. , 2012, The journal of physical chemistry letters.

[11]  A. J. Zattera,et al.  Effect of cellulose nanowhiskers functionalization with polyaniline for epoxy coatings , 2016 .

[12]  G. Barra,et al.  Structure and properties of polypyrrole/bacterial cellulose nanocomposites. , 2013, Carbohydrate polymers.

[13]  Hallen D. R. Calado,et al.  Electrochromic and spectroelectrochemical properties of polythiophene β-substituted with alkyl and alkoxy groups , 2018, Journal of Solid State Electrochemistry.

[14]  Fabiola Vilaseca,et al.  High electrical and electrochemical properties in bacterial cellulose/polypyrrole membranes , 2017 .

[15]  L. Segal',et al.  An Empirical Method for Estimating the Degree of Crystallinity of Native Cellulose Using the X-Ray Diffractometer , 1959 .

[16]  Y. Furukawa,et al.  Electronic and vibrational spectra of positive polarons and bipolarons in regioregular poly(3-hexylthiophene) doped with ferric chloride. , 2015, The journal of physical chemistry. B.

[17]  Biswajit Saha,et al.  Charge Transport through Polyaniline Incorporated Electrically Conducting Functional Paper , 2016 .

[18]  Gang Chen,et al.  Molecular engineered conjugated polymer with high thermal conductivity , 2018, Science Advances.

[19]  Weidong Zhou,et al.  High-performance green flexible electronics based on biodegradable cellulose nanofibril paper , 2015, Nature Communications.

[20]  J. T. López Navarrete,et al.  Quinoidal oligothiophenes: new properties behind an unconventional electronic structure. , 2012, Chemical Society reviews.

[21]  Yun Liu,et al.  Insights into the effects of γ-irradiation on the microstructure, thermal stability and irradiation-derived degradation components of microcrystalline cellulose (MCC) , 2015 .

[22]  J. Kennedy,et al.  Homogeneous modification of cellulose with succinic anhydride in ionic liquid using 4-dimethylaminopyridine as a catalyst , 2009 .

[23]  T. Someya,et al.  Organic transistors with high thermal stability for medical applications , 2012, Nature Communications.

[24]  R. Sugimoto,et al.  Surface modification of chitin and chitosan with poly(3-hexylthiophene) via oxidative polymerization , 2018 .

[25]  F. Vilaseca,et al.  Strong and electrically conductive nanopaper from cellulose nanofibers and polypyrrole. , 2016, Carbohydrate polymers.

[26]  K. Uetani,et al.  Thermal conductivity analysis and applications of nanocellulose materials , 2017, Science and technology of advanced materials.

[27]  S. Ralph,et al.  Estimation of cellulose crystallinity of lignocelluloses using near-IR FT-Raman spectroscopy and comparison of the Raman and Segal-WAXS methods. , 2013, Journal of agricultural and food chemistry.

[28]  R. Sugimoto,et al.  Synthesis and characterization of poly(3-hexylthiophene)-grafted polyvinyl alcohol , 2018, Synthetic Metals.

[29]  S. Fischer,et al.  New Method for Determining the Degree of Cellulose I Crystallinity by Means of FT Raman Spectroscopy , 2005 .

[30]  M. Sain,et al.  Preparation and Characterization of Cellulose Nanofibril Films from Wood Fibre and Their Thermoplastic Polycarbonate Composites , 2012 .

[31]  Harm-Anton Klok,et al.  Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. , 2017, Chemical reviews.

[32]  R. Sugimoto,et al.  Photoluminescence Control of Cellulose via Surface Functionalization Using Oxidative Polymerization. , 2017, Biomacromolecules.

[33]  O. Kukla,et al.  Poly(vinylidene fluoride)/poly(3-methylthiophene) core-shell nanocomposites with improved structural and electronic properties of the conducting polymer component. , 2018, Physical chemistry chemical physics : PCCP.

[34]  Han-Seung Yang,et al.  Mechanically enhanced electrically conductive films from polymerization of 3,4‐ethylenedioxythiophene with wood microfibers , 2017 .

[35]  Gang Sun,et al.  Preparation, Characterization, and Electrochromic Properties of Nanocellulose-Based Polyaniline Nanocomposite Films. , 2017, ACS applied materials & interfaces.

[36]  S. Hsu,et al.  Dioctylfluorene‐thiophene based conjugated copolymers for bulk heterojunction solar cells and enhanced power conversion efficiency via methanol treatment , 2015 .

[37]  Majid Rezayi,et al.  Synergy Effect of Nanocrystalline Cellulose for the Biosensing Detection of Glucose , 2015, Sensors.

[38]  Li Zhi Zhao,et al.  Fourier transform infrared spectroscopy analysis for hydrothermal transformation of microcrystalline cellulose on montmorillonite , 2014 .

[39]  R. Sun,et al.  Succinoylation of cellulose catalyzed with iodine in ionic liquid , 2010 .

[40]  F. Cacialli,et al.  Neutron Radiation Tolerance of Two Benchmark Thiophene-Based Conjugated Polymers: the Importance of Crystallinity for Organic Avionics , 2017, Scientific Reports.