Article
Polymer Science
Nikruesong Tohluebaji, Chatchai Putson, Nantakan Muensit, Jureeporn Yuennan
Summary: This study investigates the electrostrictive and structural properties of P(VDF-HFP) nanofibers modified with conductive polymer polyaniline (PANI). The composite nanofibers showed uniform fibers without bead formation, with decreased water contact angle and increased dielectric properties and electromechanical response as the PANI content increased. The results suggest that P(VDF-HFP)/PANI composite nanofibers may offer a promising route for electrostrictive applications in actuation, MEMS, and sensors.
Article
Chemistry, Physical
Huijie Zhao, Zhao Wang, Yang Li, Mujie Yang
Summary: A new type of flexible humidity sensor with unique structure and good air permeability is studied in this work, which shows fast response and stability. The sensor can be used for real-time monitoring of human physiological activities, avoiding direct contact with human skin and offering great potential in practical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
B. Hermenegildo, C. Ribeiro, N. Perinka, P. Martins, M. Trchova, M. Hajna, J. Stejskal, S. Lanceros-Mendez
Summary: Electrospun membranes with an active response play an important role in tissue regeneration by improving the ability to mimic the cellular microenvironment. This study developed PVDF electrospun fibers coated with PANI and PPy, which showed increased surface electrical conductivity and hydrophilicity while remaining biocompatible, resulting in slight enhancement in metabolic activity of L929 fibroblasts.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Nanoscience & Nanotechnology
Jiale Fang, Chengqi Chen, Hongxing Qi, Jie Zhang, Xiaoxuan Hou, Likun Pan, Xianghui Wang
Summary: Developing flexible electromagnetic interference (EMI SE) shielding materials is crucial for protecting humans from harmful radiation. We designed and fabricated a flexible multilayer structure of PVDF/GNP-PVDF composite film, which exhibited high EMI SE performance (averaging 69.7 dB in X-band), excellent flexibility, and stability (98.85% retention after bending 1000 cycles at 60 degrees). The theoretical study indicates that the multiple reflection and absorption of electromagnetic waves between layers contribute to the high EMI SE performance of the PVDF/GNP-PVDF multilayer film.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Ponnan Sathiyanathan, Lixin Wu, Thomas Walter Schmidt, Tianyuan Li, Gunasekaran Harini Bhuvaneswari, Hongdoo Kim, Arun Anand Prabu, Kap Jin Kim
Summary: This study investigated the changes in beta-crystalline phase in nanofibers using varying content of sulfonated Poly(phenylidene sulfide) as a filler. Among the different samples, the 5 wt.-% sulfonated Poly(phenylidene sulfide) content exhibited the maximum increase in beta-crystallinity, showing a nucleating effect in the nanofibers.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Materials Science, Multidisciplinary
Jinsheng Fan, Brittany Newell, Jose Garcia, Richard M. Voyles, Robert A. Nawrocki
Summary: This study demonstrates the feasibility of a fully 3D-printed flexible temperature sensor using additive manufacturing. The sensor exhibits high sensitivity and stability in temperature measurement, and the printing parameters greatly affect the performance of the sensor. Dielectric polarization through the corona poling method improves the sensitivity at higher frequencies.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Chemistry, Physical
Dong Je Han, Seonwoo Kim, Hyeon Jun Heo, Chaewon Jin, Jin-young Kim, Hongsoo Choi, In Jun Park, Hong Suk Kang, Sang Goo Lee, Jong-Chan Lee, Eun-Ho Sohn
Summary: Antimicrobial PVDF-based polymers were prepared by grafting quaternary ammonium or quaternary pyridinium monomers to effectively kill bacteria and yeast. Adding these polymers to PVDF films through blending method enhanced both mechanical properties and antimicrobial performances, while maintaining biocompatibility.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Benjamin Cromwell, Mara Dubnicka, Lasanthi Sumathirathne, Angela Thach, William B. Euler
Summary: Membranes of PVDF and related polymers are used to decompose RhB under low power sonication, and the change in visible spectrum of RhB allows determination of rate constants for different polymer compositions and membrane thicknesses. The piezoelectric field generated by mechanical deformation of the polymer catalyzes the scission of the C-N bond in RhB. Doping PVDF with transition-metal nitrates increases the rate constants, but the analysis is complicated by concurrent RhB adsorption onto the membrane. A proposed mechanism suggests that the piezocatalytic effect of the membrane leads to heterolytic cleavage of the C-N bond followed by formation of a C-Cl bond on the new xanthene ring.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Ruru Wan, Xiaoli Sun, Zhongjie Ren, Haijun Wang, Huihui Li, Shouke Yan
Summary: Poly(vinylidene fluoride) (PVDF) films with polymorphic crystal structure were prepared and the effects of heat treatment on the crystal morphology and properties were studied. The results provide a useful way to induce the formation of polar PVDF phases.
Review
Polymer Science
Weiran Zhang, Guohua Wu, Hailan Zeng, Ziyu Li, Wei Wu, Haiyun Jiang, Weili Zhang, Ruomei Wu, Yiyang Huang, Zhiyong Lei
Summary: This review outlines the reasons for the wide use of poly(vinylidene fluoride) (PVDF) and PVDF-based polymers in sensors, actuators, energy harvesters, etc., including their biocompatibility, chemical stability, film-forming ability, cost-effectiveness, and excellent electroactive properties. The recent research progress on the PVDF phase structures and identification of different phases is summarized. Various approaches for obtaining the electroactive phase of PVDF and preparing PVDF-based nanocomposites are described. Furthermore, the potential applications of these materials in wearable sensors and human energy harvesters are discussed. Finally, some challenges and perspectives for improving the properties and boosting the applications of these materials are presented.
Article
Nanoscience & Nanotechnology
Qingqing Li, Jinghua Zhao, Baosheng He, Zhijun Hu
Summary: PVDF, a ferroelectric polymer with the polar beta-phase, has the highest dipolar moment and piezoelectric response. The development of flexible electronics highly requires effective methods for producing beta-PVDF.
Article
Chemistry, Physical
Seyed Mohsen Seraji, Xing Jin, Zhifeng Yi, Chunfang Feng, Nisa V. Salim
Summary: This study demonstrates the crystalline transformation of PVDF influences aerogel formation and compressible sensing properties of a graphene composite. The fabricated PVDF/graphene foams and aerogels show high sensitivity and improved compressive strength. The results provide new pathways for fabricating porous composites with lighter density and high mechanical and electrical properties.
Article
Materials Science, Characterization & Testing
Insun Woo, Jong In Lee, Dong Je Han, Dong-Heon Han, Seung-Ju Oh, Jae Uk Yoon, Soon-Mok Choi, Eun-Ho Sohn, Jin Woo Bae
Summary: To solve the problem of bacterial growth on PVDF surfaces, pyridinium group grafted-PVDF (Pyd-PVDF) was added to PVDF to prepare antibacterial materials. The antibacterial PVDF-based blends were prepared by melt-blending of PVDF and Pyd-PVDF, and their structural, thermal, mechanical, and antibacterial properties were characterized. The impact strengths and elongations of the blends increased with increasing Pyd-PVDF concentration, while the flexural moduli and tensile strengths slightly decreased.
Review
Polymer Science
Arun K. K. Nandi, Udayan Basak, Dhruba P. P. Chatterjee
Summary: Electroactive polymers (EAPs) possess the property of charge generation and flow, and can be tuned with optoelectronic properties through side chain incorporation. By modifying external stimuli such as pH, temperature, ions, surfactants, and light, exciting tunable optoelectronic properties can be achieved in graft copolymers of EAPs. This article focuses on the controlled grafting of stimuli-responsive polymers onto the backbone of polythiophene and PVDF, highlighting their optoelectronic properties for various applications.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2023)
Article
Materials Science, Coatings & Films
Fei Xiao, Hongxia Zhang, Wei Liu, Jiangbo Zhang, Taixin Liang, Jinghui Hu, Yongli Zhang, Peng Luo
Summary: Uniform coating of polyvinylidene fluoride (PVDF) on the surface of aluminum powder has been achieved by the self-assembly reaction of tannic acid (TA) and iron ions. The PVDF layer is uniformly coated on aluminum particles, improving their water corrosion resistance. Moreover, the combustion and ignition performance of the aluminum composite are significantly enhanced compared to pure aluminum powder.
SURFACE & COATINGS TECHNOLOGY
(2022)
Review
Engineering, Chemical
Yaroslav Kobzar, Kateryna Fatyeyeva, Corinne Chappey, Nicolas Desilles, Stephane Marais
Summary: Research on ion exchange membrane for fuel cell technology has increased significantly in recent years, particularly for low-temperature operation. Polyoxadiazoles (PODs), as a class of heterocyclic polymers, exhibit unique thermal, mechanical, and chemical properties that make them promising for fuel cell applications. Various methods of POD synthesis and the development of POD-based composite membranes have been discussed to understand the structure/properties relationship.
REVIEWS IN CHEMICAL ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Yuriy Noskov, Nikolay Ogurtsov, Valery Bliznyuk, Yuri Lvov, Iryna Myronyuk, Alexander Pud
Summary: This study examines the physico-chemical specificity of chemical oxidative aniline polymerization in the presence of HNTs, as well as the morphology, structure, and properties of HNT/PANI nanocomposites. Specific interactions between the PANI component and the HNT surface significantly improve the properties of the synthesized nanocomposites. The thermostability and sensing behavior of the nanocomposites are found to be best at lower contents of doped PANI, showing potential for gas sensing applications.
APPLIED NANOSCIENCE
(2022)
Article
Engineering, Biomedical
Aracelys Marcano, Kateryna Fatyeyeva, Malys Koun, Pascal Dubuis, Marc Grimme, Corinne Chappey, Stephane Marais
Summary: Increasing the thickness of the EVOH layer enhances the oxygen barrier properties of the PU/EVOH multilayered membranes, but microcracks may occur if the thickness exceeds 18 μm, leading to a significant decrease in barrier effectiveness. EVOH27 exhibits superior oxygen barrier effects compared to EVOH32 and EVOH44, while higher ethylene group percentages result in improved water barrier properties.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2022)
Article
Chemistry, Physical
Y. Prykhodko, A. Martin, H. Oulyadi, Ya L. Kobzar, S. Marais, K. Fatyeyeva
Summary: The thermal properties of imidazolium-based protic ionic liquids (PILs) with different perfluorinated anions were studied by synthesizing 21 PILs with various alkyl and fluorinated side chains. The results showed that an increase in the length of alkyl side chains led to a decrease in melting point temperature, while an increase in the amount of fluorine atoms in the cation chemical structure led to higher crystallinity and lower thermal stability. The best thermal stability was observed in monofluorinated- and butyl-TFSI PILs in liquid state, while the lowest thermal stability was found in trifluorinated- and vinyl-TFA PILs in solid state.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Nikolay A. Ogurtsov, Andrii Mamykin, Oleksandr L. Kukla, Alexey S. Pavluchenko, Mykola Borysenko, Yuri P. Piryatinski, Jean-Luc Wojkiewicz, Alexander A. Pud
Summary: This paper explores the structural, electronic, and sensing properties of different P3MT core-shell nanocomposites and compares their interactions with MWCNTs and PVDF components. The results show specific changes in the properties of P3MT in these nanocomposites, which can be used for detecting and recognizing simulants of chemical warfare agents.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Mohammad Ebrahimi, Wojciech Kujawski, Kateryna Fatyeyeva
Summary: Porous polyamide-6 membranes were fabricated using a non-solvent induced phase inversion method, and the effect of gelation time on membrane properties was investigated. Scanning electron microscopy and other analyses were conducted to evaluate the morphological and mechanical properties of the membranes. The results showed that increasing the gelation time led to a change in membrane morphology from isotropic to anisotropic, as well as a decrease in pore size and porosity. The tensile strength of the membranes increased with gelation time, while the wet and dry thickness and water uptake decreased. The M-0 membrane exhibited the highest hydrodynamic water flux among the tested membranes.
Article
Engineering, Environmental
Ferhat Sellami, Ounissa Kebiche-Senhadji, Stephane Marais, Kateryna Fatyeyeva
Summary: Polymer inclusion membranes (PIMs) based on PVC and poly(ethylene-co-vinyl acetate) (EVA) were prepared and investigated for Cr(VI) extraction from aqueous media. The composition of PIMs was optimized and the physical-chemical properties of the resulting membranes were analyzed. The results showed that PIMs containing EVA40 and PVC were more efficient for Cr(VI) extraction compared to those with only PVC. The addition of tetradecanol improved the water plasticizing effect and increased the stability of the membrane.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Yaroslav Kobzar, Kateryna Yu. Fatyeyeva
Summary: Polybenzoxazines (PBzs) are highly cross-linked thermostable resins with remarkable physical-chemical properties. However, their high brittleness limits their real-world applications. This study investigated the influence of the length of polypropylene glycol/polyethylene glycol blocks on the properties of PBz-based flexible films. The regulation of molecular weight provides freedom for polymer subchain movement and the formation of organized structures with tunable material properties, making the synthesized polymer resins attractive for industrial applications.
Article
Engineering, Chemical
Y. Prykhodko, A. Martin, H. Oulyadi, S. Marais, K. Fatyeyeva
Summary: New hydrolyzed EVA-OH membranes were synthesized for water/gas separation. The reaction conditions were optimized to achieve desired chemical structure. The change in EVA-OH composition significantly influenced membrane crystallinity.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Amelie Martin, Kateryna Fatyeyeva, Lina Truong, Adam Daich, Hassan Oulyadi
Summary: By studying the sulfonation process of polyvinylidene fluoride, the key reactions of chain dehydrofluorination and sequence formation were revealed, along with the importance of grafting sites in the sulfonation mechanism.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Quantum Science & Technology
A. Mamykin, O. L. Kukla, A. S. Pavluchenko, Z. Kazantseva, I. A. Koshets, A. A. Pud, N. A. Ogurtsov, Yu Noskov, V. L. Kalchenko
Summary: This work is dedicated to studying the detection sensitivity and selectivity of various simulants of gaseous poisonous substances using different types of sensors. The results show that both the quartz crystal microbalance and chemoresistive electrodes can detect volatile compounds within a concentration range of 10 to 1000 ppm. The response time for the sensors varies from 10 to 20 seconds for the quartz crystal microbalance and up to 1 minute for the chemoresistive electrodes. Additionally, the qualitative identification of poisonous substances in a wide concentration range is possible through statistical analysis of the sensor array data.
SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Tiantian Feng, Yihui Yuan, Xuran Chen, Shilei Zhao, Meng Cao, Lijuan Feng, Se Shi, Hui Wang, Tao Liu, Alexander Pud, Li Han, Roberto Scaffaro, Biao He, Ning Wang
Summary: Nuclear energy plays a significant role in the development of human society, but nuclear accidents can lead to nuclear pollution with serious hazards to the environment and human health. In this study, zirconium(IV) is used to enhance the oxidation of radioactive iodine (I-) in the environment, achieving an ultralow limit of detection. The method shows high specificity and reliability, making it a promising technique for practical I- detection.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Polymer Science
Sergiy Rogalsky, Oksana Tarasyuk, Natalia Babkina, Stanislav Makhno, Olexandra Pertko, Volodymyr Povazhnyi, Tetiana Cherniavska, Kateryna Fatyeyeva
Summary: A new proton conducting membrane was developed by impregnation of porous polyimide Matrimid (R) (PI) with hydrophobic protic ionic liquid triethylammonium bis(trifluoromethylsulfonyl)imide (TEA-TFSI). The mechanical properties of the membrane were improved by impregnating it with the solution of polyetheramine Jeffamine (R) D-400 in the TEA-TFSI. The resulting partially cross-linked PI showed promising performance as a polymer electrolyte membrane for fuel cells operating at elevated temperatures in water-free conditions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Mohammad Ebrahimi, Kateryna Fatyeyeva, Wojciech Kujawski
Summary: The use of ionic liquid-based membranes as polymer electrolyte membranes in fuel cell applications has increased significantly due to the excellent properties of ionic liquids. There are three main methods for introducing ionic liquids into the polymer membrane, but each method has its drawbacks. The incorporation of ionic liquids into a polymer solution is the most common method but leads to a reduction in mechanical stability and ionic liquid leakage. Cross-linking can improve mechanical stability but may decrease ionic mobility. This article presents the main approaches for ionic liquid introduction and discusses the latest results in correlation with the composite membrane structure. In addition, some promising new methods are described.
Review
Chemistry, Physical
Ya. Kobzar, H. Oulyadi, S. Marais, K. Fatyeyeva
Summary: Understanding molecular dynamics in solid-state proton conductive materials is important for creating materials with improved performance and efficiency. Nuclear magnetic resonance (NMR) spectroscopy offers atom-level sensitivity and has been widely used, especially solid-state NMR (ssNMR) spectroscopy, for characterizing electrolyte materials. This review highlights the applications of NMR and ssNMR spectroscopy for characterizing proton conductive materials, with selected case studies and potential developments discussed. Additionally, the conductivity results obtained from liquid and ssNMR analyses are compared with those from electrochemical impedance spectroscopy.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
