Article
Polymer Science
Graham Hayes, C. Remzi Becer
Summary: Hyperbranched polymers are a type of polymeric structure with useful features for various applications. In this study, hyperbranched poly(2-oxazoline)s with different molar masses were synthesized using a bis-functional crosslinker and controlled degree of crosslinking. The degree of branching and the lower critical solution temperature of each polymer were measured.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Polymer Science
Graham Hayes, Ben Drain, C. Remzi Becer
Summary: Poly(2-oxazoline)s are promising for biomedical applications, but limited synthetic approaches exist for star-shaped polymers. A novel bis-oxazoline cross-linker was developed via a fast thiol click reaction, allowing the preparation of well-controlled core cross-linked star polymers. The synthesized star-shaped polymers were characterized extensively and showed potential for encapsulation of dihydroxyanthroquinone.
Article
Polymer Science
Sukanya Bera, Ranajit Barman, Suhrit Ghosh
Summary: Comparative studies between amphiphilic hyperbranched and linear poly(disulfide) show that the former has higher drug loading content and efficiency, better drug release in the presence of glutathione, as well as improved cellular uptake and cell killing efficiency.
Article
Polymer Science
Dimitrios Selianitis, Stergios Pispas
Summary: This work introduces a series of novel multi-responsive hyperbranched copolymers which self-organize in aqueous media. The copolymers, prepared by RAFT polymerization, exhibit responsiveness to changes in solution temperature and pH, and are able to encapsulate hydrophobic drugs like curcumin. These hyperbranched copolymers show potential as candidates for drug delivery and bio-imaging applications, as they demonstrate stability in the presence of serum proteins.
Article
Chemistry, Multidisciplinary
Yuezhou Huang, Chenyang Hu, Yanchuan Zhou, Ranlong Duan, Zhiqiang Sun, Pengqi Wan, Chunsheng Xiao, Xuan Pang, Xuesi Chen
Summary: A new polymerization route based on reversible CO2 insertion and chemoselective ring opening copolymerization has been developed, allowing for the preparation of multi-block polyesters and potential wider applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Chang-Cheng Chang, Yu-Yu Chen, Hsiu-Mei Chiang, Yu-Fang Shen, Jian-Cheng Wang, Kang-Chiao Ma, Ching-Hsuan Lin, Tzong-Yuan Juang
Summary: A nonconventional fluorescent hyperbranched polymer was successfully synthesized in this study, displaying unique fluorescence properties. Through dynamic light scattering analysis, nanosized particles of pi-HBP 03 were observed in aqueous solution. Pi-HBP 03 exhibited effective antioxidant abilities in cells.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Organic
Ying Wang, Zi-Lu Wang, Wei-Wei Ma, Yun-He Xu
Summary: A copper-catalyzed regioselective Markovnikov 3,4-hydrosilylation of 2-substituted 1,3-dienes has been successfully achieved. A wide range of 2-substituted 1,3-dienes and trihydrosilanes are compatible under the optimal conditions. The use of a bisphosphine ligand with a rigid backbone provides the Markovnikov 3,4-hydrosilylation product with better yield and selectivity. Additionally, the synthetic utilities of the allylsilanes were demonstrated through their flexible derivatizations.
Article
Engineering, Chemical
Ze-Lin Qiu, Wen-Han Yu, Yu-Jie Shen, Bao-Ku Zhu, Li-Feng Fang
Summary: The use of cationic hyperbranched poly (amido-amine)s as macromonomers for nanofiltration membrane fabrication allows for modulation of outer voids between molecules to enhance permeability and selectivity. The resultant membrane demonstrates ultrahigh retention for molecules with high molecular weights or positive charges, achieving molecular-level selectivity for different types of molecules.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Itay Raz, Roman Dobrovetsky
Summary: The synthesis of a dicationic Zn+2-based complex with a tripodal tris(2-pyridylmethyl)amine (TPA) ligand is reported, which serves as a highly chemoselective catalyst for hydrosilylation reactions of alkynes. Unlike typical Zn-catalyzed hydrosilylation reactions, this system activates C equivalent to C triple bonds instead of Si-H bonds, which explains its high chemoselectivity.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xun Liu, Ziyin Zhao, Fan Wu, Yongbing Chen, Lichen Yin
Summary: A hyperbranched poly(beta-amino ester) is developed to achieve stable protein encapsulation and efficient intracellular release through the incorporation of phenylboronic acid, enabling cytosolic protein delivery.
ADVANCED MATERIALS
(2022)
Article
Polymer Science
Pengjia Shan, Hengyu Lu, Ning Chen, Hongzhi Liu, Xianhui Zhang, Xiaohuan Liu
Summary: A biobased hyperbranched polyester (HBPE) was successfully synthesized from vegetable oil, showing good thermal stability and tunable glass transition temperature, which makes it a potential "greener" additive for polymers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Yu Zhang, Xutao Ma, Miaomiao Yang, Di Lan, Xueshuo Li, Zhenguo Gao, Tiezheng Ji
Summary: In this study, aramid fiber (AF) coated with liquid hyperbranched polycarbosilane (VHPCS) was used to enhance the mechanical properties and ablation resistance of EPDM insulation materials. The results showed a significant improvement in the ablation performance of the AF insulation materials coated with VHPCS, as well as an increase in the elongation at break.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Multidisciplinary
Xinlin Zha, Guilin Xu, Yi Xiong, Zhong Yan, Ke Liu, Mufang Li, Yuanli Chen, Jing Lu, Dong Wang
Summary: Designing artificial systems to mimic chiral superstructures and investigating the modulation of chirality by achiral molecules is important for understanding the origin of homochirality in nature. In this study, the tunability of supramolecular chirality is applied to fabricate chiral covalent polymers with controlled helicity. By introducing small amounts of achiral diaminopyridines (DAPs) during the copolymerization process, chiral copolymers with adjustable helical configurations and chiroptical activities can be obtained. The hydrogen bonding between DAPs and template molecules is found to be the driving force for the chiral polymerization. Additionally, a library of helical functional copolymers, including conducting polymers and condensation-based polymers, can be built using this copolymerization strategy.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tatsuhiro Uchikura, Haruka Nakamura, Hinata Sakai, Takahiko Akiyama
Summary: An efficient and widely applicable silyl radical addition reaction was developed using 2-silylated dihydroquinazolinone derivatives under photocatalytic conditions. Electron-deficient alkenes and styrene derivatives underwent hydrosilylation to give addition products in good to high yields. Mechanistic studies revealed that the photocatalyst functioned as an energy transfer catalyst rather than a photoredox catalyst.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Energy & Fuels
Gaoshun Guo, Yu Ren, Yunbo Yu, Zuwei Liao, Binbo Jiang, Yao Yang, Guijin He, Wenjun Fang, Jingdai Wang, Yongrong Yang
Summary: PPAMAM and PAMAM, as initiators for steam cracking of naphtha, significantly improve the yields of light olefins, with PPAMAM showing better performance, especially with higher molecular weights. Active free radicals generated by the additives play important roles in the initial cracking stage of hydrocarbons.
Article
Chemistry, Physical
Yan Song, Pei Liu, Rui Zhou, Runqiu Zhu, Jie Kong
Summary: By adjusting the carbon content of precursors, this study achieved control over the phase composition and performance of SiBNCx ceramics, which holds significant potential for the research on high temperature microwave absorbing materials.
Article
Multidisciplinary Sciences
Yinglai Hou, Zhizhi Sheng, Chen Fu, Jie Kong, Xuetong Zhang
Summary: In this study, hygroscopic holey graphene aerogel fibers (LiCl@HGAFs) with integrated functionalities of highly efficient moisture capture, heat allocation, and microwave absorption were reported. The fibers achieved a water sorption capacity over 4.15 g g(-1), and could be regenerated through both photo-thermal and electro-thermal approaches. Additionally, LiCl@HGAFs exhibited efficient heat transfer and broad microwave absorption performance.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Jianwei Li, Yixiu Wang, Wenzhong Zhao, Peilun Xu, Tingyi Wang, Jie Kong
Summary: This study focuses on the synchronous optimization of microwave transmission and mechanical properties of polymer composites by modifying cyanate ester resin using polysilazane and epoxy resin. The use of quartz fibers as reinforcement resulted in high-performance quartz fiber/PSN/CE-EP composites with improved microwave-transparent and mechanical properties. The results showed that composites with 4 wt% PSN achieved the best comprehensive performance.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yao Qin, Hongfei Li, Cuiping Han, Funian Mo, Xin Wang
Summary: A chemical welding strategy to in situ construct a gel electrolyte enables Zn-ion batteries with a well-bonded and water-poor electrode-electrolyte interface, alleviating side reactions and enabling preferential Zn deposition. This approach leads to ultralong lifespan and reversibility in Zn-ion batteries.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yan Song, Runqiu Zhu, Ziyu Liu, Xingyi Dai, Jie Kong
Summary: Phase-transformation HfO2 nanoparticles were added to PDC-SiBCN to improve its mechanical performance and electromagnetic wave absorption, allowing its application as a structural load component in an environment with electromagnetic interference.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jin Liang, Zhiheng Wei, Xicheng Zhang, Fengbo Chen, Xin Cao, Zongcheng Li, Benzheng Gao, Xin Qi, Shaofeng Tang, Jie Kong
Summary: In this research, cementite/Fe nanoparticles anchored on nitrogen-doped carbon nanotubes (Fe3C/Fe/N-CNTs) composites were successfully synthesized through a one-step pyrolyzing procedure. The obtained magnetoelectric composites exhibited excellent microwave absorption properties, with a minimum reflection loss of -54.4 dB at 10.4 GHz, a matching thickness of 2.3 mm, and low filler loading (15%). The outstanding performance can be attributed to the CNT network, hollow CNT structure, magnetic Fe3C/Fe, and multiple interfaces of the composites.
Review
Chemistry, Multidisciplinary
Feifan Zheng, Chunwei Li, Zongcheng Li, Xin Cao, Hebin Luo, Jin Liang, Xiaodong Zhao, Jie Kong
Summary: Composite solid electrolytes are crucial for all-solid-state lithium batteries, which are considered the next-generation energy storage devices. Numerous studies have shown that fillers in composite solid electrolytes can improve ion transport behavior by optimizing the ion transport path. The performance is closely related to filler structure and its interaction with other electrolyte components. This review focuses on dimensional design of fillers, as well as ion transport mechanism and filler-electrolyte interaction in advanced composite solid electrolytes. Strategies for designing composite solid electrolytes with high room temperature ionic conductivity are summarized to assist research for high-performance composite solid electrolytes.
Article
Nanoscience & Nanotechnology
Yuzhang Du, Yichen Liu, Wenxuan Lu, Xuan Zhang, Aoao Wang, Jie Kong
Summary: This article introduces a new type of strain sensor that achieves ultrahigh sensitivity, high reliability, and excellent durability through bioinspired hierarchical structure and hydrogen bond-enhanced interfacial interactions. It can accurately diagnose and distinguish symptoms of chronic diseases.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ruizhe Xing, Guoxuan Xu, Ning Qu, Rui Zhou, Jiayi Yang, Jie Kong
Summary: This work presents a gallium indium alloy-doped SiBOC ceramic with a liquid-metal-in-ceramic feature. By mixing EGaIn nanoparticles with a UV-curable ceramic precursor, a resin suitable for 3D-printing is obtained. The resulting SiBOC ceramics show improved mechanical strength and dielectric properties, achieving excellent electromagnetic wave absorption across multiple frequency bands.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Qiang Zhuang, Yanan Wang, Chengxuan Luo, Zhiheng Ma, Lingzi Shi, Jianxin Chen, Jianke Sun, Jie Kong
Summary: In this study, a high-performance nanostructured composite material for electromagnetic wave absorption was developed. The nano composites treated at 800°C exhibited excellent wave absorption performance and had a wide effective absorption bandwidth.
Article
Multidisciplinary Sciences
Yan Li, Fusheng Wang, Chenguang Huang, Jianting Ren, Donghong Wang, Jie Kong, Tao Liu, Laohu Long
Summary: In this paper, it is demonstrated that pulse current can effectively reduce delamination damage and residual deformation in 3D orthogonal woven composites, improving their mechanical properties and damage tolerance. A damage reduction strategy is proposed by combining structural and electromagnetic properties, and an experimental platform is developed to investigate the effects of pulse current and impact force on woven composites. Experimental results show that pulse current can effectively reduce delamination damage and residual deformation. A multi-field coupled damage model is developed to analyze the evolutions of temperature, current, and damage, providing insights into the mechanism of damage reduction and a potential approach for improving damage tolerance of these composites.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Biomedical
Dongyan Shao, Ting Bai, Bobo Zhu, Xiaojia Guo, Kai Dong, Junling Shi, Qingsheng Huang, Jie Kong
Summary: This study develops a polymeric micelle-based IL-15/IL-2 codelivery system (IL-15/2-PEG-PTMC) for natural killer (NK) cell activation. It noticeably delays the growth of tumors in mice compared to conventional NK cell activation approach, that is free IL-15 and IL-2. It is surprisingly found that cholesterol metabolism is highly involved in the NK cell activation by IL-15/2-PEG-PTMC.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Dong Yang, Guangming Tian, Jianhua Ma, Xinhai He, Jie Kong
Summary: Four triphenylamine (TPA)-substituted boron ketoimine molecules (TPA-BKI a-d) are designed and synthesized, which exhibit high emission efficiency in both solution and solid-state. The asymmetry of molecular and the planarity of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) sides in the excited state enable TPA-BKI a-d to have rigidified conformations, resulting in bright emission in dilute solution. The highly twisted structures of TPA-BKI a-d prevent close contact between molecules and detrimental exciton interactions, leading to efficient emission in the solid state. Additionally, the emission colors can be modulated by incorporating different substituents through the amino-yne click reaction. Moreover, TPA-BKI-d shows reversible alterations of optical properties in both solution and solid states due to the protonation and deprotonation of the amino substituents.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Peng Miao, Weixing Chen, Dong Zhou, Keji Zhu, Jianing Zhang, Jie Kong
Summary: In this study, a coprecipitation method was used to synthesize hollow FeMn PBA precursors. After pyrolysis under inert conditions, a core-shell FeMnC complex with a carbon layer wrapped metal core was obtained. The microwave absorption performance was enhanced, as demonstrated by the effective absorption width of 6.4 GHz and a minimum reflection loss of 60.3 dB at 2.3 mm.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ben Niu, Zhengang Li, Die Luo, Xinyu Ma, Qingshan Yang, Yu-E Liu, Xiaoyu Yu, Xianru He, Yu Qiao, Xin Wang
Summary: The use of a polymer additive with hydrophilic and hydrophobic units can create a localized hydrophilic environment and hydrophobic layer, suppressing water-related side reactions and direct corrosion of the metal, thereby improving the electrochemical stability of aqueous Zn-ion devices.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
