Article
Materials Science, Ceramics
Kara L. Martin, Maria J. S. Parvulescu, Tulsi A. Patel, Pavel Mogilevsky, Thomas S. Key, Christina M. Thompson, Matthew B. Dickerson
Summary: Metal coordination chemistry is commonly used in biology and materials science to fine-tune material properties. This study demonstrates the control of material characteristics through metal ion coordination cross-linking in polymers, showing its significance in enhancing material performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
K. P. Sonu, Le Zhou, Santidan Biswas, John Klier, Anna C. Balazs, Todd Emrick, Shelly R. Peyton
Summary: Hydrogels are water-swollen networks that have various applications in biomaterials and biotechnology. This study successfully synthesized multifunctional polymers to create hydrogels with reversible and irreversible cross-links. These strain-stiffening hydrogels have potential applications as biomaterials, particularly in emerging fields like tissue engineering.
Article
Polymer Science
Manoj Kumar Maurya, James Wu, Manjesh Kumar Singh, Debashish Mukherji
Summary: Understanding the heat flow in polymers is crucial for designing advanced functional materials. Traditional approaches to increase the thermal conductivity involve semicrystallinity and cross-linking, but a combination of both effects does not always result in an increase of thermal conductivity. Instead, the tunability of thermal conductivity in polymer networks is determined by a delicate competition between lattice periodicity, cross-linker types, and bond density.
Article
Polymer Science
Yuto Inoue, Takahiro Ishida, Natsuhiro Sano, Tatsuo Yajima, Hiromitsu Sogawa, Fumio Sanda
Summary: Polymeric metal complexes were synthesized and polymerized from borane compounds with different ligands. The BH3 groups were removed from the formed polymers, resulting in polyacetylenes with -PPh2 ligands. These polymers were further coordinated with platinum to form polymeric metal complexes, which exhibited catalytic activity in the hydrosilylation reaction.
Article
Polymer Science
Ziyue Yang, Lidong Zhang
Summary: In this study, a non-cross-linking liquid-crystalline polymer film actuator with photoresponsive performance and diverse motion patterns was synthesized, showing great potential in various applications.
Article
Polymer Science
Baizhu Lin, Tianhang Lian, Shijie Sun, Mu Zhu, Yuanhua Che, Xueqing Sun, Xibin Wang, Daming Zhang
Summary: We have reported an ultra-broadband and compact TM-pass polarizer based on graphene-buried polymer waveguides. This polarizer demonstrates high extinction ratio, ultra-broadband, low cost, and easy integration with other polymer-based planar lightwave devices.
Article
Materials Science, Multidisciplinary
Ramin Rojaee, Samuel Plunkett, Md Golam Rasul, Meng Cheng, Vahid Jabbari, Reza Shahbazian-Yassar
Summary: This research successfully developed a solid-state Li battery with high current density capabilities, reducing the interfacial resistance across the electrode/electrolyte interfaces. By using in situ UV cross-linking technology, a uniform thickness of 20-40 μm polymer electrolyte was prepared to achieve promising cycling performance enhancement.
Article
Chemistry, Physical
Junming Ma, Lvpeng Yang, Yazhuo Xue, Yerun Gao, Haoyu Chen, Di Zhang, Zhenye Wang, Yunhui Kuang, Yu Yu, Ming Shao
Summary: The article presents a spatial cross-linking and photolithography strategy to improve the efficiency and stability of perovskite light-emitting diodes (PeLEDs). The addition of cross-linkers enhances the moisture resistance and device efficiency, while reducing nonradiative recombination. The optimized PeLEDs achieved a high external quantum efficiency and demonstrated good stability.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Wei-Hua Han, Qing-Yu Wang, Yuan-Yi Kang, Li-Rui Shi, Yu Long, Xin Zhou, Chun-Cheng Hao
Summary: This review comprehensively discusses the cross-linking electrospinning system for the first time, including cross-linking strategies, cross-linking mechanisms, and applications of cross-linked electrospun nanofibers. The significance of cross-linking electrospinning and the challenges in constructing this system are also highlighted.
Article
Materials Science, Multidisciplinary
Lei Zheng, Nils Keppler, Huajun Zhang, Peter Behrens, Bernhard Roth
Summary: An easily fabricated gas sensor based on planar polymer optical waveguides with an integrated zeolite imidazole framework-8 (ZIF-8) thin film is presented for carbon dioxide detection and sensing. The sensor exhibits high sensitivity, rapid response, and excellent reversibility, showing potential for developing flexible on-chip gas sensors in an inexpensive and reproducible manner.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Chen Zhang, Chenxi Liu, Wenxin He, Dian Jiao, Zhe Liu
Summary: The development of advanced biomaterials has greatly influenced diagnosis and treatment against diseases, with a novel bio-inspired polymer demonstrating size-tunability and enhanced drug loading mechanisms. This functional polymer has been successfully utilized for drug release and in vivo animal studies, proving its utility for precision assessment of drug deposition and targeting delivery.
APPLIED MATERIALS TODAY
(2021)
Article
Nanoscience & Nanotechnology
Yingtao Zhou, YingYing Xu, Gongjie Xu, Okihiro Sugihara, Bin Cai
Summary: This study proposes a sensing platform integrating an optical fiber-waveguide-fiber structure with a molecularly imprinted polymer (MIP) for ultrahigh sensitivity and selectivity. The MIP-OFWF sensing platform demonstrates highly selective monitoring of the absorption spectra of components in a mixture solution and possesses an extremely low detection limit.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Pooria Rahmani, Akbar Shojaei
Summary: In this study, superabsorbent and tough hydrophobic associated hydrogels were developed using terpolymerization of poly acrylic acid (PAA), polyacrylamide (PAM), and lauryl methacrylate (LMA) within the micelles formed by sodium dodecyl sulfate (SDS) surfactant. The hydrogels exhibited suitable mechanical properties and outstanding swelling ratio due to the multiple physical interactions inside the hydrogel. This fascinating feature could broaden the applications of hydrogels in various areas.
Article
Chemistry, Multidisciplinary
Jeonghyeon Lee, Myungeun Seo
Summary: The study successfully stabilized a structure with a pore size of 1.1 nm by maximizing cross-linking density and increasing the interaction parameter, using polymerization-induced microphase separation (PINS) combined with hyper-cross-linking as a strategy.
Article
Polymer Science
Trevor Gilbert, Matthew A. Campea, Nahieli Preciado Rivera, Michael Majcher, Richard Alsop, Mouhanad Babi, Thomas Kalab, Jose Moran-Mirabal, Maikel Rheinstadter, Todd Hoare
Summary: In this study, injectable PNIPAM/PVP interpenetrating polymer networks were fabricated and characterized. The results show that the internal structure of the injectable IPNs can be controlled by adjusting the PVP molecular weight and degree of thiolation. The PNIPAM gelation drives the formation of domains, with PNIPAM mainly located in the PVP-rich domains and PVP entrapped in the PNIPAM-rich domain. Additionally, the structural reconfiguration of the IPNs can be achieved by heating above the volume phase transition temperature of the PNIPAM phase, which is influenced by the molecular weight and thiolation degree of the PVP precursor polymers.
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.