Article
Polymer Science
Jihyeon Moon, Kyutae Seo, Hyo Kang
Summary: This study demonstrates the vertical liquid crystal alignment behavior on the surface of phytochemical-based and renewable chavicol-modified polystyrene via polymer modification reactions. There is a correlation between the vertical alignment of LC molecules and the polar surface energy value of the polymer films. The chavicol-substituted polymer system can produce an eco-friendly and sustainable LC alignment layer for next-generation applications.
Article
Polymer Science
Xuejun Pan, Muhammad Waqas Ishaq, Muhammad Waqas Ali, Jinxian Yang, Lianwei Li, Yougen Chen
Summary: In this study, a library of comb-like polymers with varied grafting densities was prepared and their conformational properties in solution were investigated. PEtOx-N-3 was synthesized as the grafting side chain and grafted onto PPA backbone to obtain comb-like PPA(Nb)-g-PEtOx(47)-sigma(g) samples with different grafting densities. The molecular parameters of these comb-like polymers were extracted using a Quadruple-detection size-exclusion chromatography system. The study revealed a transition in polymer shape from starlike to comb-like, and further to branched comb-like structure as the backbone length increases.
Article
Chemistry, Physical
Jin-Wook Choi, Jongil An, Seung-Rak Son, Soyern Kim, Jisung Park, Chan Beom Park, Jun Hyup Lee
Summary: A hierarchical self-assembled nanoarchitecture based on the unique self-assembly of block copolymers has been developed for the nanofabrication of functionally versatile materials with a wide range of potential applications. The ultrafast responsive and highly reliable self-constructed polymer nanolayer was fabricated using template-assisted interfacial self-assembly, enabling automatic molecular alignment control. This approach demonstrated improved electro-optical switching speed and alignment stability compared to commercial polyimide layers.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Jin-Wook Choi, Sang Hee Kim, Gyu Jin Shin, Jin-Wook Kim, Do Hyun Kim, Jun Hyup Lee
Summary: A facile and effective fabrication strategy was proposed to create a hierarchically constructed self-alignment layer for vertical molecular orientation of liquid crystals. The self-constructed alignment layer showed better performance in terms of vertical alignment ability and device characteristics compared to the conventional polyimide layer.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Juri Kim, Yun-Seok Choi, Geonhyeong Park, Mingeun Kim, Jin Suk Myung, Woo Jin Choi, Soon Mo Park, Dong Ki Yoon
Summary: This article introduces a method for fabricating anisotropic DNA hydrogels and demonstrates the potential of directionally controlled DNA hydrogels as smart materials.
Article
Polymer Science
DaEun Yang, Kyutae Seo, Hyo Kang
Summary: The vertical liquid crystal alignment on polymer films is influenced by the position and structure of the terminal moiety of the polymer side group. Different side groups lead to different liquid crystal alignments, and the alignment is affected by the surface energy of the polymer films.
Article
Materials Science, Multidisciplinary
Chi Yen Huang, Mareena Antony, Pravinraj Selvaraj, Che Ju Hsu
Summary: The suspension of nanoparticles in the alignment layer improves the performance of liquid crystal devices. The blend alignment layer enhances the dynamic response and operation voltage, and prevents the aggregation of nanoparticles.
Article
Chemistry, Multidisciplinary
Zi-Yun Zhang, Jiang-Tao Sun, Chun-Yang Li, Ya-Ping Liu, Zhong-Xin Ge, Ying-Gang Jia, Mei Tian, Dan-Shu Yao
Summary: In this study, two azo liquid crystal monomers and a chiral liquid crystal monomer were synthesized to prepare liquid crystalline polymers. The synthesized polymers exhibited good liquid crystal properties and thermal stability, making them suitable for applications in liquid crystal materials.
Article
Polymer Science
Mark Clyde Staub, Shichen Yu, Christopher Yuren Li
Summary: This study reports the fabrication of polymer crystalsomes formed by 1D polymer crystals. P3HT crystalsomes were successfully prepared using a miniemulsion solution crystallization method, and their properties were examined through microscopy and diffraction experiments. The results reveal curvature-dependent structural, thermal, and electro-optical properties of P3HT crystalsomes.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mizuho Kondo, Taku Yamoto, Motoki Tada, Nobuhiro Kawatsuki
Summary: The study successfully manipulated the molecular alignment of a liquid-crystalline MCL compound to achieve changes in luminescent color in response to mechanical stimuli, evaluating the influence of mechanical force on the photoluminescent behavior.
Article
Chemistry, Physical
Young Jin Lim, Jun Hyeok Lee, Gwan Yong Lee, Mira Jo, Eun Ji Kim, Tae Hyung Kim, Minsu Kim, Myong-Hoon Lee, Seung Hee Lee
Summary: This study demonstrates a novel liquid crystal alignment technique that can achieve vertical alignment and precise modulation of pretilt without additives. By utilizing a two-step polymerization process, the research successfully overcomes common challenges in liquid crystal alignment, providing a new approach for improving material synthesis, fabrication processes, and electro-optic properties.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Composites
Ning Zhang, Yong Pang, Zhaohui Li, Chuanhui Yang, Lu Zong, Hongsheng Yang, Hao Wu, Yongxin Duan, Jianming Zhang
Summary: In this study, biodegradable PVA-based elastomers with excellent solvent barrier property and high elasticity were fabricated. The water-soluble resin PAE was used as a crosslinker to effectively crosslink carboxyl PVA chains. The collaborative triple networks in the prepared PVA composites contribute to their excellent elastomer behavior. Furthermore, these materials demonstrated highly efficient barrier performance against chemical solvents permeation as chemical protective gloves, and showed a high degradation rate.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Ra You, Sumin Kang, Changjae Lee, Jisoo Jeon, Jeong Jae Wie, Taek-Soo Kim, Dong Ki Yoon
Summary: The arrangement of mesogenic units in LCN films determines their mechanical response, with increased defects leading to enhanced toughness and ductility due to elastic modulus mismatch that mitigates crack propagation. The platform also allows modulation of frictional force by varying temperature, providing insight into the multiplex mechanical properties of LCN films.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Agricultural Engineering
Sa-Ad Riyajan
Summary: Green polymer, made from grafted natural rubber, exhibits high thermal stability, low moisture absorption, and sustained release of curcumin.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Crystallography
Jeong-Hoon Ko, Jun-Chan Choi, Dong-Jin Lee, Jae-Won Lee, Hak-Rin Kim
Summary: This study proposes a photocontrolled variable-resistivity PI layer to investigate the voltage holding and discharging properties of FFS n-LC modes, aiming to avoid image flickering and sticking issues caused by surface charge. The experimental scheme demonstrates a feasible approach in PI engineering for a power-saving low-frequency FFS n-LC mode.
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)