Article
Energy & Fuels
Chengxi Ye, LiQun Wang, Qihe Tan, Yiguo Ma, Qingsong Tong, Jingzheng Weng
Summary: A novel water-soluble cationic polyacrylamide/polyaniline (CPNi) conductive and mechanical robust binder is designed and fabricated, which exhibits a superior discharge capacity of 120 mAh g(-1) at 200(th) cycle under the current density of 1C and an excellent discharge capacity of 118 mAh g(-1) at 5C-rate. The effect of PANi is investigated via the electrochemical behaviors and mechanical properties, and the CPNi6 sample could balance electrochemical and mechanical properties.
Article
Nanoscience & Nanotechnology
Jing Cong, Zhiwei Fan, Shaoshan Pan, Jie Tian, Weizhen Lian, Shan Li, Sijie Wang, Dongchang Zheng, Chunguang Miao, Weiping Ding, Taolin Sun, Tianzhi Luo
Summary: This study successfully synthesized a type of conductive hydrogels with a double network structure, exhibiting excellent mechanical performance, conductivity, and freezing tolerance, suitable for flexible electronic sensors and showing outstanding performance at -20 degrees Celsius.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Xiao-Xiao Guo, Shi-Chang Hou, Hui-Juan Li, Jun Chen, Abdul Haleem, Wei-Dong He
Summary: Conductive composite cryogels were prepared by simultaneous oxidation coupling polymerization of aniline and radical polymerization of acrylamide, achieving the uniform distribution of PANI in the polymer matrix. The resulting cryogels showed adjustable electrical conductivity due to the acidic doping of PANI, making them suitable for resistive gas sensor electrodes. By adjusting the content of PANI, sheet thickness, and dry/wet state, the response sensitivity and recovery properties of the sensor could be influenced.
Article
Materials Science, Composites
Mohsen Peykari, Saeed Pourmahdian
Summary: Conductive hydrogels have gained attention for electronic applications due to their electrical conductivity, flexibility, and conformability. In this study, a polyaniline-based conductive hydrogel was successfully synthesized and carbon nanotubes were incorporated to enhance its electrical conductivity. The results showed that the method of incorporation affected the microstructure and electrical properties of the hydrogel.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Polymer Science
Xuejiao Tao, Zhao Dai, Yue Ma, Nan Li
Summary: Temperature-sensitive fluorescent poly-acrylamide nanofibers with excellent morphology and fluorescence performance were prepared in this study. The fibers undergo a color change under specific light sources, showing great potential for various applications.
Article
Chemistry, Physical
Ximan Dong, Jiachen Liang, Huan Li, Zhitan Wu, Lina Zhang, Yaqian Deng, Hongyuan Yu, Ying Tao, Quan-Hong Yang
Summary: The length matching strategy in fabricating asymmetric fiber supercapacitors is crucial in achieving high energy density, and the use of engineered activated carbon fiber resulted in exceptional energy density of the assembled device. This work provides a practical way to realize high-energy AFSCs with great promise for integration into wearable electronics using established weaving technology of carbon fibers.
Article
Polymer Science
Hatem A. A. Al-Aoh, Nacer Badi, Aashis S. S. Roy, Abdulrhman M. M. Alsharari, Salah Abd El Wanees, Abdulrahman Albaqami, Alex Ignatiev
Summary: Polyaniline fibers were nucleated in one dimension in an ice medium with the presence of anionic surfactant and compared to bulk polyaniline prepared at an optimum temperature. Structural analysis using Fourier-transform infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD) was conducted. The conductivity study revealed higher conductivity of polyaniline fibers compared to bulk polyaniline. Hydrogen storage measurements demonstrated the ability of polyaniline fibers to adsorb and desorb hydrogen at high capacity and lower temperatures.
Article
Materials Science, Multidisciplinary
R. Karthikeyan, R. Sridhar, R. Suresh
Summary: Polyaniline-coated natural fiber composites were developed to enhance their thermal properties. The coating of polyaniline resulted in a continuous conductive network, leading to a significant improvement in the thermal conductivity of the composites. This approach provides a cost-effective and efficient method to enhance the thermal properties of natural fiber composites.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Jeong-Gil Kim, Dong-Myung Lee, Jae Young Jung, Min Ji Kim, Myung-Seob Khil, Hyeon Su Jeong, Nam Dong Kim
Summary: The study introduces a PANI/CNTF composite structure utilizing CNTFs as electrodes, showing high electrical conductivity and flexibility for flexible supercapacitors. The optimized synthesis process produces PANI with good contact properties at the CNTF interface, exhibiting excellent capacitance performance and mechanical resilience, suitable for future flexible wearable applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Analytical
Z. Heidarnia, R. Parvizi, H. Khoshsima, H. Heidari
Summary: This study presents the first application of an absorptive silica-supported polyaniline molybdenum trioxide hybrid coating onto an optical fiber, integrating the concept of lossy mode resonance with molecular imprinting sensors. The coating exhibited unique optical properties and acted as a versatile optical transducer in the detection of pesticide residue in crops. Experimental and numerical analysis confirmed the excellent performance and sensitivity of the proposed sensing probe.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Zhe Zhang, Lei Feng, Panpan Jing, Xiaojiang Hou, Guoquan Suo, Xiaohui Ye, Li Zhang, Yanling Yang, Chenxi Zhai
Summary: This study utilized straight carbon nanotubes as nanoscale conductive skeletons on carbon fibers to support PANI/SnS2. The nanoflower-like features of SnS2 significantly increased specific capacitance and specific surface area, with PANI nanolayers on SnS2 petals enhancing secondary specific capacitance and inhibiting volume expansion of SnS2. The resulting hybrids exhibited high specific capacitance, high surface area, and excellent cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Nacer Badi, Aashis S. Roy, Hatem A. Al-Aoh, Mohamed S. Motawea, Saleh A. Alghamdi, Abdulrhman M. Alsharari, Abdulrahman S. Albaqami, Alex Ignatiev
Summary: Porous TiO2-doped polyaniline and polyaniline nanocomposite fibers prepared by in situ polymerization using anionic surfactant in an ice bath were studied. The structural and morphological characteristics of the nanocomposites were analyzed, and their electrical conductivity and hydrogen absorption capacity were measured. The results showed that the TiO2-doped polyaniline nanocomposites exhibited higher DC conductivity and hydrogen absorption capacity compared to other nanocomposites.
Article
Materials Science, Multidisciplinary
Weiwei Kong, Shuangqin Yi, Wenjin Sun, Ling Xu, Lichuan Jia, Dingxiang Yan, Zhongming Li
Summary: In this study, a mechanically enhanced CF/epoxy composite with highly efficient EMI shielding was fabricated through in-situ polymerization of PANI nanolayer. The composite exhibited improved interfacial adhesion, resulting in significant enhancements in interlaminar shear strength and EMI shielding effectiveness.
MATERIALS & DESIGN
(2022)
Article
Polymer Science
Stuti Jha, Rama Gaur, Syed Shahabuddin, Irfan Ahmad, Nanthini Sridewi
Summary: This study presents the potential of a low-cost adsorbent, prepared from waste coconut fibers and polyaniline, for the removal of hexavalent chromium. Kinetic and isothermal analysis revealed that the adsorption followed a pseudo second order model and a monolayer adsorption based on the Langmuir model.
Review
Materials Science, Textiles
Yu Wu, Sihao Zhou, Jie Yi, Dongsheng Wang, Wen Wu
Summary: In this paper, we report on the fabrication of continuous conductive alginate/polyaniline/graphene hydrogel fibers, which exhibit good flexibility, high water absorbability, and stable resistance changes. These fibers have the potential to be used as working strain sensors for wearable human movements monitors.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
(2022)
Article
Chemistry, Physical
Deng Wang, Wenjing Li, Tingting Zhang, Xuping Liu, Xiao Jin, Bing Xu, Dongyu Li, Zhen Huang, Qinghua Li, Zhang Lan, Jihuai Wu
Summary: It has been discovered that doping an appropriate amount of Zn(Ac)(2) in CsPbIBr2 perovskite solar cells can improve crystal quality, decrease trap density, and optimize charge recombination, resulting in an improved power conversion efficiency and long-term stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Lina Tan, Jihuai Wu, Yuqian Yang, Chunyan Deng, Guodong Li, Xuping Liu, Yitian Du, Minmin Yang, Weihai Sun
Summary: Perovskite solar cells (PSCs) have made significant progress in the past decade. The interface behavior between the perovskite active layer (PAL) and hole transport layer (HTL) plays a crucial role in the performance and stability of PSCs. In this study, a bifunctional modifier of 4-hydroxy-2,2,6,6-tetramethylpiperidine (HTMP) is introduced at the PAL/HTL interface. The HTMP molecule forms bi-directional hydrogen bonds to inhibit ion migration, reinforces the interface contact, and improves the stability of perovskite. Additionally, HTMP passivates interface defects, provides a suitable energy gradient arrangement, and reduces nonradiative recombination loss, leading to an increase in the power conversion efficiency of the PSC.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Mian Gao, Zhitao Shen, Gentian Yue, Chen Dong, Jihuai Wu, Yueyue Gao, Furui Tan
Summary: In this study, a novel synthesis method was developed to prepare efficient and economical non noble metal counter electrode (CE) electrocatalytic materials with good catalytic ability and stability for dye-sensitized solar cells (DSSCs). The resulting micro-nanostructured composite of CE showed high power conversion efficiency and a distinctive porous structure that facilitated fast charge transport.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Jingxu Tian, Jihuai Wu, Yuhe Lin, Jialian Geng, Jialiang Shi, Wenhui Lin, Wenxuan Hao, Chaoran Ke, Jinhui Yang, Weihai Sun, Zhang Lan
Summary: As a solution to the challenges of improving efficiency and stability in perovskite solar cells (PSCs), a cage polyamine molecule hexamethylenetramine (HMTA) is incorporated into the tin oxide electron transport layer (ETL). The introduction of HMTA improves electron extraction ability and energy-level alignment of functional layers. It also reduces defects and enhances stability, resulting in a PSC with a high power conversion efficiency of 22.37%. This research demonstrates the use of cage polyamines as an effective method for improving the performance and stability of PSCs.
Article
Chemistry, Physical
Chunyan Deng, Jihuai Wu, Yuqian Yang, Yitian Du, Ruoshui Li, Qi Chen, Yuan Xu, Weihai Sun, Zhang Lan, Peng Gao
Summary: By functionalizing the buried interface using DDSI2, the distribution and size of PbI2 clusters can be modulated, leading to improved performance of perovskite films. DDSI2 serves as a multifunctional modifier that optimizes the energy level of SnO2 and passivates buried interface defects. The hydrogen bonding and coordination between DDSI2 and perovskite reduce crystal growth rate and lattice stress, resulting in enhanced perovskite quality and modulated PbI2 distribution. The DDSI2-modified device exhibits a power conversion efficiency of 24.10% and a storage stability of 1800 h, demonstrating a unique strategy for the rational control of PbI2 in efficient and stable perovskite solar cells.
ACS ENERGY LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Zeyu Song, Zhongkai Hao, Xu Zhang, Jihuai Wu
Summary: In recent years, there has been an increase in the development and research of photocapacitors. They have the potential to address the intermittent output problem of solar cells but their efficiency is much lower than that of photovoltaic devices, limiting their usability. As an intersection of photovoltaic devices and supercapacitors, the development of photocapacitors is still in its early stages and faces numerous challenges. This review provides an introduction to the classification of photocapacitors, outlines the development process, and points out the problems that need to be solved.
FUNCTIONAL MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Anling Tong, Chenwei Zhu, Huiying Yan, Chunhong Zhang, Yinuo Jin, Yunjia Wu, Fengxian Cao, Jihuai Wu, Weihai Sun
Summary: Inorganic CsPbBr3-based perovskite solar cells have excellent humidity and thermal stability, but those without a hole transport layer suffer from serious carrier recombination. To solve this problem, a passivation layer of polymethyl methacrylate (PMMA) is used between the CsPbBr3 film and carbon electrode. This PMMA layer suppresses trap sites, facilitates faster carrier extraction and transportation, improves energy level alignment, and acts as a moisture protective layer. The modified device achieved a champion PCE of 9.60% with a high VOC of 1.58 V, and negligible PCE loss after 400 hours of aging.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yitian Du, Ying Wang, Jihuai Wu, Qi Chen, Chunyan Deng, Ran Ji, Liuxue Sun, Lina Tan, Xia Chen, Yiming Xie, Yunfang Huang, Yana Vaynzof, Peng Gao, Weihai Sun, Zhang Lan
Summary: Sodium bicarbonate is used as an additive in perovskite solar cells to improve the formation of perovskite film and enhance the crystallinity and grain structure, resulting in improved device efficiency and stability.
Article
Nanoscience & Nanotechnology
Wenhui Lin, Jihuai Wu, Jingxu Tian, Yuhe Lin, Puzhao Yang, Yongheng Huang, Xiaoyuan Jiang, Lin Gao, Ying Wang, Weihai Sun, Zhang Lan, Miaoliang Huang
Summary: The introduction of multifunctional additive TFMBI into perovskite films effectively repairs surface defects, improves the performance of perovskite solar cells, and enhances their environmental stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xuping Liu, Qinghua Li, Juanjuan Zheng, Jiewen Xu, Zixia Chen, Zimin Li, Jie Liu, Shengyong Liang, Deng Wang, Zhenghe Zhang, Xiao Jin, Jihuai Wu, Xingcai Zhang
Summary: The double-layer modification engineering strategy using spiderman NOBF4 significantly improves the power conversion efficiency (PCE) of perovskite solar cells (PSCs). The introduction of NO+ as the interfacial bonding layer passivates the oxygen vacancy in SnO2, while BF4- optimizes the defects in the perovskite material. The synergistic effect of NO+ and BF4- enhances carrier extraction efficiency, resulting in a PCE of 24.04% with high fill factor (FF) and long-term stability. This study highlights the effectiveness of multifunctional additives in improving interface contact and enhancing PSCs' PCE.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Pengxu Chen, Weichun Pan, Sijia Zhu, Fengxian Cao, Anling Tong, Ruowei He, Zhang Lan, Weihai Sun, Jihuai Wu
Summary: In this study, defects in the SnO2 electron transport layer and perovskite layer were effectively passivated by introducing a multifunctional molecule TMACl. The presence of TMACl suppressed the defects in SnO2 and passivated the defects in PVK, resulting in improved device performance of perovskite solar cells. The devices based on TMACl-doped SnO2 and TMACl-modified SnO2 electron transport layers achieved higher efficiencies compared to the pristine device, and the TMACl-modified SnO2 maintained 88% of its original efficiency after 35 days of storage in a humidity-controlled chamber.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Optics
Qinghua Li, Jinke Bai, Cuiying Bu, Zimei Cui, Jiyan Huang, Xuerong Nie, Xiao Jin, Bing Xu
Summary: Whole visible range emitting CuInS2/ZnS QDs were obtained with broad band-width and high luminous efficiency by altering the Cu/In ratio and coating ZnS layer. Thiol was used as a sulfur source in the ZnS coating process to improve the photoluminescence quantum yield. White light-emitting diodes (WLEDs) based on these CuInS2/ZnS QDs exhibited moderate luminous efficacy and high color qualities with warm white light.
Article
Chemistry, Inorganic & Nuclear
Weichun Pan, Pengxu Chen, Sijia Zhu, Ruowei He, Qingshui Zheng, Fengxian Cao, Zhang Lan, Jihuai Wu, Weihai Sun, Yunlong Li
Summary: The introduction of 6-amino-1-hexanol (HAL) with bilateral electron-donating groups between SnO2 and perovskite (PVK) optimizes the buried interfacial properties and improves the PVK film quality in perovskite solar cells. HAL acts as a molecular bridge to effectively passivate surface defects of SnO2 and stabilize the [PbI6](4)- octahedra at the buried interface. The HAL-modified device exhibits significantly enhanced photovoltaic performance and improved stability after storage.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jinbiao Jia, Beibei Shi, Jia Dong, Zhe Jiang, Shuaibing Guo, Jihuai Wu, Bingqiang Cao
Summary: By introducing 4-iodo-1H-imidazole into the perovskite precursor, defects in the perovskite films can be prevented, resulting in a significant increase in open-circuit voltage and decreased nonradiative recombination. As a result, the device efficiency is increased by 20% compared to the control device.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yuqian Yang, Qiu Xiong, Jihuai Wu, Yongguang Tu, Tianxiao Sun, Guixiang Li, Xuping Liu, Xiaobing Wang, Yitian Du, Chunyan Deng, Lina Tan, Yuelin Wei, Yu Lin, Yunfang Huang, Miaoliang Huang, Weihai Sun, Leqing Fan, Yiming Xie, Jianming Lin, Zhang Lan, Valerio Stacchinii, Artem Musiienko, Qin Hu, Peng Gao, Antonio Abate, Mohammad Khaja Nazeeruddin
Summary: This study introduces a novel strategy of spinodal decomposition to create a poly(3-hexylthiophene)/perovskite (P3HT/PVK) heterointerface, effectively reducing energy and carrier losses in perovskite solar cells (PSCs). The P3HT/PVK heterointerface improves energy alignment, reducing energy loss at the interface, and the interpenetrating structure bridges a transport channel, decreasing carrier loss at the interface. This innovative approach achieves a remarkable power conversion efficiency of 24.53% for PSCs.
ADVANCED MATERIALS
(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.
