Article
Polymer Science
Ruirui Zhou, Lijie Lin, Birong Zeng, Xindan Yi, Chenyu Huang, Kunpeng Du, Xiaohui Liu, Yiting Xu, Conghui Yuan, Lizong Dai
Summary: The DOPO-containing diblock copolymer poly(HAMA(m)-b-HEPOMA(n)) was synthesized and grafted with Ti-POSS to obtain PolyTi. The PolyTi was used as a macromolecular flame retardant to modify epoxy resin materials, resulting in improved thermal stability, flame retardancy, and resistance to migration.
Article
Materials Science, Composites
Xinming Ye, Xiangning Meng, Zhiqing Han, Yugang Qi, Zhimao Li, Panpan Tian, Wensheng Wang, Jie Li, Yingchun Li, Wenchao Zhang, Rongjie Yang
Summary: With increasing attention to environmental safety and health, long-chain biologically-based polyamides (PA) are considered to be promising materials owing to their biocompatibility and combining the dual advantages of polyolefins and short-chain petroleum-based polyamides. However, poor flame retardancy severely impedes long-chain biologically-based polyamides' application in versatile high-standard fields.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Wenyuan Zhang, Zijian Zheng, Mingyuan Zhang, Fan Yang, Wenchao Zhang, Xiaolu Wu, Rongjie Yang
Summary: A series of metal polyhedral oligomeric silsesquioxane salts (POSS-M, M = Li or Na or K) were synthesized using click reaction and neutralization reaction. The chemical structure of POSS-M was confirmed by various analytical techniques. The introduction of POSS-M into epoxy resins resulted in epoxy composites with improved flame retardancy properties, as evidenced by UL-94 V1 rating and high limiting oxygen index (LOI) value. Additionally, the addition of POSS-M led to a significant reduction in peak heat release rate (pHRR) and the formation of compact char layers with sodium silicate on the surface, showcasing a novel flame retardant mechanism involving silicon-containing compounds.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Wenbin Zhang, Yuanjie Xu, Junjie Ma, Jie He, Huijian Ye, Jinwei Song, Yulong Chen, Lixin Xu
Summary: Graphene electrothermal coatings with high efficiency, durability, and flame-retardant properties have been successfully prepared by utilizing a hyperbranched polyethylene copolymer with UV-reactive moieties and POSS terminal groups. These coatings can maintain a stable working state at a high temperature of 280 degrees C and exhibit excellent electrothermal performance and stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Wenyuan Zhang, Jianfeng Huang, Xiaoyan Guo, Wenchao Zhang, Lijun Qian, Zhaolu Qin
Summary: The introduction of EV-POSSs enhances the flame retardancy, smoke suppression, mechanical and dielectric properties of epoxy resin. The EV-POSSs containing epoxy and vinyl groups show comprehensive enhancement and spacious applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Xin Zhang, Junming Geng, Weiwei Zhang, Lijun Qian, Zhaolu Qin, Wenchao Zhang
Summary: The mechanical and flame retardancy properties of vinyl ester resin (VER) composites are improved by adding lithium-containing polyhedral oligomeric phenyl silsesquioxane (Li-Ph-POSS). Li-Ph-POSS enhances the bending strength and flexural modulus of the composites, while also providing good fire resistance and smoke suppression capabilities. The excellent compatibility between Li-Ph-POSS and the matrix contributes to the improved mechanical properties and slightly enhanced glass transition temperature of the VER composites.
POLYMER COMPOSITES
(2021)
Article
Chemistry, Multidisciplinary
A. Kannan, C. Muthuraj, A. Mayavan, S. Gandhi
Summary: In the recent nano-era, the incredible advancement of tailoring nanomaterials for various applications, especially the hybrid material made from organic and inorganic material, has gained huge interest. Polyhedral Oligomeric Silsesquioxane (POSS) has notable properties and has been extensively explored by researchers in various fields, including sensing applications. This review provides an overview of silica-based hybrid material emergence and discusses its applications in biomedical, energy, engineering, catalysis, and electrochemical sensing fields. It also discusses the future scope of functionalized POSS materials in nano-interface for electrochemical, in-vivo, and bio-sensor applications.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Polymer Science
Degang Wang, Jie Ding, Bing Wang, Yingluo Zhuang, Zhixiong Huang
Summary: A new POSS-Phenol was synthesized and its effects on the thermal degradation of phenolic resin were investigated. The study found that POSS modified phenolic resin exhibited better thermal stability at high temperatures.
Article
Chemistry, Multidisciplinary
Xiangyang Zhong, Gang Wei, Boyang Liu, Chenyang Wang, Juan Wang, Yong Lu, Wenguo Cui, Hongbo Guo
Summary: This study introduces a nanodrug delivery system based on polyhedral oligomeric silsesquioxane (POSS) to deliver drugs into the nuclei of GBM cells, enhancing the therapeutic efficacy of chemotherapy.
Article
Chemistry, Applied
Zuzanna Buchwald, Mariusz Szolyga, Joanna Zwolinska, Bogdan Marciniec, Adam Voelkel
Summary: The remineralizing potential of hydroxyapatite has led to its use in dental composites. However, the compatibility between hydroxyapatite and organic compounds is insufficient, resulting in low mechanical properties. Polyhedral oligomeric silsesquioxanes show promise as additives to dental composites, and their modification of hydroxyapatite surfaces improves mechanical properties and reduces water sensitivity.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Xieji Lin, Xinjian Chen, Fan Zhang, Yue Dong, Xiaohong Chen, Ang Li, Huaihe Song
Summary: A unique 3D interconnected Si/SiOx/C nanorings were successfully fabricated via AlCl3-assisted aluminothermic reduction, showing great potential in the field of lithium ion batteries. The obtained nanorings exhibited uniform diameter and well distribution of C and Si elements, along with superior high-rate capacity and good cycle stability as an anode for LIBs. Furthermore, they delivered high reversible capacity at ultra-low temperature, broadening the application possibilities of POSS.
Article
Nanoscience & Nanotechnology
Aman Ullah, Yanet Rodriguez Herrero
Summary: The use of phenyl polyhedral oligomeric silsesquioxane (POSS) as a hydrophobic support for Cu/ZnO catalyst enables direct CO2 hydrogenation to methanol. The CuZnPOSS nanoparticles exhibit high selectivity and stability, with a yield of 3.8% methanol and a conversion of 4.4% CO2 within 18 hours. The use of microbatch reactors allows for rapid and effective catalyst screening.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Composites
Xinming Ye, Zhiqing Han, Panpan Tian, Tong Liu, Xiangning Meng, Chengke Yuan, Wensheng Wang, Yingchun Li
Summary: Cu-Ph-POSS was synthesized by grafting Cu into Si-O-Si cage, and used to solve the problem of black smoke generated during combustion of epoxy resin (EP) in high fire safety fields. The incorporation of 2 wt% Cu-Ph-POSS into EP significantly improved thermal stability and reduced peak heat release rate (p-HRR), peak smoke production rate (p-SPR), and peak CO production rate (p-COP) by 56.8%, 44.4%, and 59.4%, respectively. The presence of polycyclic aromatic and Si-C compounds in the interior char layers effectively inhibited the release of heat, smoke, and toxic volatiles, imparting superior flame retardant and smoke suppression performances to the fabricated EP composites.
COMPOSITES COMMUNICATIONS
(2023)
Article
Polymer Science
Hailian Zhou, Leichun Liu, Wenchao Zhang, Rongjie Yang
Summary: A kind of epoxy and phenyl groups-containing POSS compound (EPHPOSS) with a regular cage of 16 silicon atoms was successfully synthesized and incorporated into epoxy resin (EP) to enhance its comprehensive performances. The EPHPOSS showed a homogeneous dispersion in the EP composites and played a crucial role in improving bending strength and thermal properties. The EP composite with 10 wt% EPHPOSS exhibited a higher limiting oxygen index (LOI) value of 27.8% compared to the pure EP (LOI of 23.2%). Moreover, the EPHPOSS significantly reduced the heat release rate, total heat release, and total smoke release of the EP composites. The flame retardant mechanism of EPHPOSS was attributed to the formation of compact and continuous char layers, thereby reducing the production of organic combustible gases.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Yue Zhang, Yuting Zhuang, Rui Yin, Lu Han, Yudan Shen, Zhen Zhang, Kai Xie, Jianwei Zhang, Maosen Yuan, Jinyi Wang
Summary: The monolayer self-assembly of polyhedral oligomeric silsesquioxane (POSS) onto graphene oxide (GO) was achieved through their electrostatic and hydrogen-bonding interaction. The postfunctionalization of Cu2+ resulted in outstanding properties of the POSS-GO-Cu2+ nanostructure, allowing for hemoglobin separation with protein activity maintenance. This research provides a simple and cost-efficient method for the fabrication of ultrathin two-dimensional materials with potential applications in bio-separation and analysis.
COMPOSITES COMMUNICATIONS
(2021)
