Article
Materials Science, Composites
Xiaodan Li, Wei Huang, Yan Sui, Guanhui Wang, Lin Xiao, Dongxing Zhang
Summary: By adding different amounts of MA0735 into novolac cyanate ester resin, novolac cyanate ester-polyhedral oligomeric silsesquioxane (POSS, MA0735) copolymers were prepared and analyzed for their curing behaviors and properties. The polymer with 0.5% MA0735 showed optimal comprehensive properties, combining heat resistance and impact toughness.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Zhuoer Yu, Jun Zhang, Bangqiang Wu, Liqiang Wan, Farong Huang
Summary: The azido-terminated POSS compound OADTP was synthesized and characterized, and used to prepare POSS-polytriazole (PTA) resins with improved impact strength. The addition of POSS improved the mechanical properties of PTA resins, with the impact strength increasing by 44.2% compared to PTA resin, while maintaining good thermal stability.
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
Engineering, Electrical & Electronic
Yanhong Fang, Ping Wang
Summary: Solar energy is gaining more attention as a green and clean energy source, with antifouling treatment on photovoltaic panels being crucial for improving photoelectric conversion efficiency. EP-POSS, with its good hydrophobicity, has potential application in protective coatings for photovoltaic panels and can be further enhanced through modification.
JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS
(2021)
Article
Engineering, Environmental
Subinuer Abudukelimu, Gang Wei, Jia Huang, Gang Zhao, Li Wei, Wenguo Cui, Min Lu, Weiyan Yao
Summary: This study developed a novel polyhedral oligomeric silsesquioxane (POSS)-based nanoplatform for combination therapy of pancreatic cancer. The nanoplatform successfully combined a chemotherapeutic drug and a photothermal agent, showing significant synergistic effects in chemoresistant cancer cells. In a mouse model of pancreatic cancer, the nanoplatform effectively inhibited tumor growth without causing noticeable side effects. The prepared nanoparticles can be a promising strategy for the treatment of pancreatic cancer and other types of cancer.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Yang-Chin Kao, Wei-Cheng Chen, Ahmed F. M. EL-Mahdy, Meei-Yu Hsu, Chih-Hao Lin, Shiao-Wei Kuo
Summary: In this study, a difunctionalized cyanate ester double-decker silsesquioxane (DDSQ-OCN) cage was prepared to improve the thermal behavior of epoxy resin. The covalently bonded network structure formed by the copolymerization of epoxy and OCN units, as well as the hydrogen bonding between the OH groups of epoxy and the SiOSi moieties of DDSQ units, enhanced the physical properties of the material. The addition of Cu(II)-acac accelerated the thermal polymerization process but decreased the thermal stability.
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
Ayesha Kausar
Summary: POSS is an inorganic-organic nanostructure that can improve the thermal and mechanical properties of polymeric matrices like polyurethane when used as a nanofiller. Recent progress has focused on enhancing non-flammability, anti-corrosion, and biomedical properties of polyurethane/POSS nanocomposites.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2021)
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
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
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
Polymer Science
Zeng Birong, Zhou Ruirui, Zheng Xianghong, Ye Jianyu, Chen Jinmei, Xu Yiting, Yuan Conghui, Dai Lizong
Summary: The new POSS-DOPO-(phenylboronic acid) composite showed good transparency and thermal stability in flame retardant epoxy resin, effectively reducing heat release and smoke generation during combustion to enhance fire resistance. Additionally, it increased the thickness of the residual char layer and improved the mechanical and dielectric properties of EP.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Yanhong Fang, Ping Wang, Lifang Sun, Linhong Wang
Summary: The study successfully modified EP-POSS by introducing nanoparticles, enriching Si on the surface with graphene as a carrier, thereby further improving the hydrophobicity of the material.
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
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.