4.7 Article

Double-decker-shaped phenyl-substituted silsesquioxane (DDSQ)-based nanocomposite polyimide membranes with tunable gas permeability and good aging resistance

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Chemical

Microphase-separated morphology controlled polyimide graft copolymer membranes for CO2 separation br

Ki Jung Kim et al.

Summary: This study investigates microphase-separated structured PI-POEM graft copolymer membranes, which have controllable POEM concentrations and the ability to modify material properties. The results show that PI-POEM graft copolymer membranes exhibit high CO2 affinity and separation performance, making them promising for CO2 separation processes.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Materials Science, Multidisciplinary

Double-Decker Silsesquioxane-Grafted Polysilsesquioxane Hybrid Films as Thermal Insulation Materials

Takashi Hamada et al.

Summary: Researchers have successfully developed aggregation-free DDSQ-grafted PSQ films with high thermal insulating properties and thermal stability, providing a new option for next-generation thermal insulators.

ACS APPLIED POLYMER MATERIALS (2023)

Article Engineering, Chemical

Polymers of intrinsic microporosity and thermally rearranged polymer membranes for highly efficient gas separation

Samaneh Bandehali et al.

Summary: In recent decades, novel polymeric materials have been explored for the preparation of highly energy-efficient gas separation membranes, with efforts to overcome the trade-off relationship between gas permeability and selectivity. Challenges remain in achieving stable permeability and selectivity of PIMs and TR polymers for membrane gas separation, with difficulties in optimal temperature identification for TR polymers and preparation of thin-film TR membranes.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Chemical

Recent progress in PIM-1 based membranes for sustainable CO2 separations: Polymer structure manipulation and mixed matrix membrane design

Shanshan He et al.

Summary: This article summarizes the latest progress in modification strategies for PIM-1 based membranes, including the design and modification of PIM-1 intrinsic structure and the fabrication of PIM-1/nanofiller mixed matrix membranes. The focus of the research is to improve the selectivity and long-term stability of PIM-1 membranes for crucial gas separations such as CO2 capture.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Chemical

Highly Selective Benzimidazole-Based Polyimide/Ionic Polyimide Membranes for Pure- and Mixed-Gas CO2/CH4 Separation

Wei Xie et al.

Summary: This study developed benzimidazole functionalized polyimides and ionic polyimides with high CO2/CH4 selectivity for natural gas sweetening, demonstrating improved gas separation properties by tightening microporous structures and restricting polymer chain mobility. High performance was observed under high-pressure mixed-gas conditions.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Microporous Pentiptycene-Based Polymers with Heterocyclic Rings for High-Performance Gas Separation Membranes

Zihan Huang et al.

Summary: This study successfully prepared a series of thermally rearranged pentiptycene-based polybenzoxazole (PPBO) polymers and achieved superior gas separation performance by optimizing the thermal treatment protocols. PPBO membranes exhibited excellent resistance to plasticization and aging in CO2/CH4 mixed-gas permeation tests.

CHEMISTRY OF MATERIALS (2022)

Review Polymer Science

Research progress of low dielectric constant polymer materials

Zhendong Hu et al.

Summary: The advent of the high frequency communication era has posed new challenges for the further development of dielectric polymer materials. Efficient signal transmission is critical in the field of communication, and using dielectric materials with low dielectric constant can reduce signal delay and improve signal fidelity. This paper primarily discusses the research progress and future trends in intrinsic low dielectric polymers, fluorine doped low dielectric polymers, and microporous low dielectric polymers.

JOURNAL OF POLYMER ENGINEERING (2022)

Article Polymer Science

Synergistic Design of Enhanced π-π Interaction and Decarboxylation Cross-Linking of Polyimide Membranes for Natural Gas Separation

Yanshu Shi et al.

Summary: In this study, enhanced pi-pi interactions and decarboxylation cross-linking were synergistically designed among polymer chains to improve the gas separation performance and plasticization resistance of membranes.

MACROMOLECULES (2022)

Article Polymer Science

Molecular Design of Poly(imide-oxadiazole) Membranes for High-Pressure Mixed-Gas Separation

Ali Hayek et al.

Summary: This paper reports the preparation of a series of block copolymers of poly(imide-oxadiazole)s and measures the pure and mixed-gas separation properties of their corresponding membranes. The results show that these polymers exhibit high permeability and selectivity under high-pressure conditions, surpassing many other glassy polymers.

MACROMOLECULES (2022)

Article Multidisciplinary Sciences

Hydrocarbon ladder polymers with ultrahigh permselectivity for membrane gas separations

Holden W. H. Lai et al.

Summary: A class of hydrocarbon ladder polymers with high selectivity and high permeability has been discovered, which shows great potential for industrial gas separations and exhibits desirable mechanical and thermal properties.

SCIENCE (2022)

Article Engineering, Chemical

Theoretical design and preparation of ionic liquid-based magnetic nanoparticles for the magnetic dispersive solid-phase extraction of benzimidazoles in human plasma

Rui Chen et al.

Summary: Conductor-like screening model for realistic solvents (COSMO-RS) is a useful tool for predicting the properties of solvents. This study used COSMO-RS to design and screen 144 ionic liquids (ILs) with affinity for benzimidazoles (BZDs). Ionic liquid-based magnetic nanoparticles (IL-MNPs) were prepared and showed excellent adsorption ability for BZDs. The magnetic dispersive solid-phase extraction (MDSPE) method for BZDs was established and successfully applied to detect trace BZDs in human plasma. The results demonstrated the feasibility of theoretically screening ILs and designing IL-MNPs as specific adsorption materials.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Pentiptycene-Containing Polybenzoxazole Membranes with a Crosslinked Unimodal Network Structure for High-Temperature Hydrogen Separations

Si Li et al.

Summary: In this research, a new design of crosslinked polymer membranes with unimodal network structures is reported, which exhibit excellent stability and separation performance under complex or harsh conditions. By controlling crosslink density, the membrane separation performance is significantly improved and remains superior at elevated temperatures.

CHEMISTRY OF MATERIALS (2022)

Article Engineering, Chemical

PIM-1 membranes containing POSS-graphene oxide for CO2 separation

Sajjad Mohsenpour et al.

Summary: PIM-1 mixed matrix membranes (MMMs) fabricated with POSS and GO-POSS show higher CO2 permeability and good selectivity, surpassing the 2008 Robeson upper bound, and can slow down physical aging.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Materials Science, Multidisciplinary

Colorless Polyamide-Imide Films with Enhanced Thermal and Dimensional Stability and Their Application in Flexible OLED Devices

Yuan-Yuan Liu et al.

Summary: This study successfully addressed the issues of low Tg and high CTE in colorless polyimide films, with the development of PAI-9O-5 film exhibiting excellent performance. By continuously improving the material structure, this film can now be applied in fields such as organic light-emitting diodes.

ACS APPLIED POLYMER MATERIALS (2022)

Article Polymer Science

Soluble and processable thermoplastic hybrid polyimides containing POSS in main chains

Tasuku Kamitani et al.

Summary: Colorless and soluble thermoplastic polyimides with double-decker-shaped silsesquioxanes (DDSQ) in their main chains were synthesized and their properties were investigated. The results showed that polyimides synthesized using specific dianhydrides and 3 exhibited characteristics of solubility, colorlessness, low elasticity, and high heat resistance.

POLYMER CHEMISTRY (2022)

Article Polymer Science

High temperature shape memory poly(amide-imide)s with strong mechanical robustness

Xingfeng Lei et al.

Summary: By incorporating amide hydrogen bonding interactions, researchers have developed a new material called poly(amide-imide) hybridization networks, which exhibit superior shape memory behavior, thermal stability, and mechanical strength, making them promising candidates for aerospace applications.

POLYMER CHEMISTRY (2022)

Article Polymer Science

Synthesis of polyimides containing Troger's base and triphenylmethane moieties with a tunable fractional free volume for CO2 separation

Xiaochen Xu et al.

Summary: In this study, a series of rigid polyimide materials were designed and synthesized, with tunable fractional free volume achieved by controlling the substituents. These materials exhibited excellent separation performance for CO2, contributing to the sustainable development of the environment and society.

POLYMER CHEMISTRY (2022)

Article Polymer Science

Synthesis, microstructures, and gas separation performance of norbornyl bis-benzocyclobutene-Troger's base polymers derived from pure regioisomers

Xiaofan Hu et al.

Summary: The chain configuration of polymers of intrinsic microporosity significantly affects their microstructures and gas separation performance. In this study, regioisomers of norbornyl bis-benzocyclobutene-containing diamines were prepared through Pd-catalyzed reactions and separated by column chromatography. The isomeric effects of methyl and TB groups on the properties of these polymers were investigated. The results showed that the isomers exhibited different surface areas, fractional free volumes, and size distributions of ultramicropores, leading to variations in gas permeability and perm-selectivity.

POLYMER CHEMISTRY (2022)

Article Engineering, Chemical

Synthesis and gas separation performances of intrinsically microporous polyimides based on 4-methylcatechol-derived monomers

Xiaofan Hu et al.

Summary: A novel type of intrinsically microporous polyimides (PIM-PI) with high molecular weights and adequate rigidity was developed in this study, showing excellent gas separation performance. The rigid, sterically hindered, and contorted structures of PIM-PIs give them superior gas-sieving capabilities, especially MMBMDA-FDBDA exhibiting comparable separation performance to the benchmark PIM-1 membrane.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Nanoscience & Nanotechnology

Mechanically Strong, Thermally Stable Gas Barrier Polyimide Membranes Derived from Carbon Nanotube-Based Nanofluids

Yuyang Xiao et al.

Summary: A novel approach using polyetheramine oligomers grafted on carbon nanotubes to engineer liquid-like CNT nanofluids was reported to enhance gas barrier and moisture permeation properties. The resulting membranes showed significant improvement in gas barrier properties while retaining high moisture permeability, making them potential candidates for high-pressure natural gas or hyperthermal air dehydration.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Polymer Science

Immobilization of N and Si as center species toward microporous organic polymers for CO2 adsorption via dipole-quadrupole interaction

Yuwei Zhang et al.

Summary: Micro porous organic polymers (MPOPs) with tailored Ph, Si, and N as center species were prepared through a Schiff base reaction. The experiments showed that the CO2 uptake values were mainly increased by the Si and N center-decorated MPOPs.

POLYMER (2021)

Article Engineering, Chemical

Effects of bulky 2,2′-substituents in dianhydrides on the microstructures and gas transport properties of thermally rearranged polybenzoxazoles

Yao Lu et al.

Summary: Chain interactions of hydroxyl polyimide (HPI) precursors significantly affect the microstructures and gas separation performance of resulting thermally rearranged polybenzoxazoles (TR-PBOs), demonstrating the crucial role of chain packing in the TR behavior, microstructures, and gas transport properties of TR-PBOs.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Engineering, Chemical

The effect of chain rigidity and microporosity on the sub-ambient temperature gas separation properties of intrinsic microporous polyimides

Wenhui Ji et al.

Summary: The relationship between the rigidity, microporosity, and ideal gas separation properties in polymers of intrinsic microporosity (PIM) is important but understudied. Research comparing two different PIM polymers, PIM-DB-PI and PIM-PI-1, showed that both rigidity and microporosity play key roles in fine-tuning gas transport through polymer membranes. Microporosity has a dominant effect on gas diffusion selectivity, while rigidity primarily impacts the critical diffusion penetrate size of PIM-PI membranes.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Engineering, Chemical

Synthesis and gas separation properties of polyimide membranes derived from oxygencyclic pseudo-Troger's base

Shuanyan Kang et al.

Summary: The study successfully synthesized two novel neoteric oxygencyclic pseudo-Troger's base derivatives and prepared them into polyimide membranes for gas separation, showing promising performance such as high gas pair selectivity, moderate gas permeability, and good physical aging properties. Introducing oxygencyclic pseudo-Troger's base into polyimide chains could potentially create attractive membrane materials for various gas separation applications.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Engineering, Chemical

Synthesis and characterization of 6FDA/3,5-diamino-2,4,6-trimethylben-zenesulfonic acid-derived polyimide for gas separation applications

Mahmoud A. Abdulhamid et al.

Summary: A sulfonic acid-functionalized trimethyl-substituted polyimide showed lower gas permeability and higher gas pair selectivity due to higher diffusion selectivity and strong hydrogen bonding induced by -SO3H functionalization. Competitive sorption effects and CO2-induced polymer matrix plasticization in gas mixture systems reduced the polymer selectivity.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Engineering, Chemical

Dibenzo-21-crown-7-ether contained 6FDA-based polyimide membrane with improved gas selectivity

Beibei Zhang et al.

Summary: The introduction of crown ether into the polymeric backbone can enhance the chains packing density, reducing d-spacing and accessible fractional free volume. The membrane showed typical molecular sieving separation mechanism with permeabilities in the order of He > H-2 > CO2 > N-2 > CH4. Incorporation of DB21C7 improved diffusion selectivity and solubility selectivity, leading to significant selectivity increases in various gas pairs compared to non-crown ether contained polyimide membrane. Membrane material design for high purity gas requirement may benefit from introducing crown ether moiety into the polymeric backbone.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Chemistry, Physical

High-performance polymer molecular sieve membranes prepared by direct fluorination for efficient helium enrichment

Xiaohua Ma et al.

Summary: Direct fluorination of intrinsically microporous polymers enhances He permeability and He/CH4 selectivity, offering unprecedented separation performance and mechanical stability. This method shows great potential in efficiently enriching small gas molecules from various resources.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Polymer Science

Synthesis and properties of colorless copolyimides derived from 4,4′-diaminodiphenyl ether-based diamines with different substituents

Ruhe Lian et al.

Summary: Colorless polyimide films with outstanding mechanical and thermal properties were fabricated using different diamines and anhydrides, showing high transparency, excellent strength, and heat-resistance. These films have potential applications as substrates in flexible displays.

POLYMER CHEMISTRY (2021)

Article Chemistry, Physical

Tuning of visible light-driven CO2 reduction and hydrogen evolution activity by using POSS-modified porous organometallic polymers

Wei-Jia Wang et al.

Summary: Significant efforts have been made in developing POSS-based POMPs catalysts for the photochemical CO2RR to produce syngas. The surface area, CO2 adsorption ability, visible-light harvesting capacity, and photoinduced electron-hole separation efficiency of these materials can be regulated, and their applicability in designing new catalysts for the CO2RR has been revealed.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Polymer Science

POSS-based starlike hybrid helical poly(phenyl isocyanide)s: their synthesis, self-assembly, and enantioselective crystallization ability

Hui Zou et al.

Summary: Starlike hybrid helical PPIs with well-defined structures were designed and prepared using POSS as the core; chiral and amphiphilic hybrids were obtained by modifying the monomers and conducting polymerization with POSS-Pd(ii) as the initiator, exhibiting thermoresponsive behaviors and excellent enantioselective crystallization abilities.

POLYMER CHEMISTRY (2021)

Article Polymer Science

Substituted polynorbornene membranes: a modular template for targeted gas separations

Xinyi Wang et al.

Summary: Polynorbornenes are ideal for systematic structure-property investigations related to gas transport, with recent focus shifting towards the development of highly selective materials for multiple targeted gas separations. Advances have been made in the preparation of stable and highly selective polynorbornenes for membrane-based gas separations since 2017.

POLYMER CHEMISTRY (2021)

Article Polymer Science

Supramolecular organogel formation behaviors of beads-on-string shaped poly(azomethine)s dependent on POSS structures in the main chains

Ayano Ishida et al.

Summary: This study focuses on the comparison between polymers incorporating phenyl-substituted DDSQ and isobutyl-substituted T-8 units in their main chain, revealing the significant influence of different substituent types on solubility and organogel formation ability of the polymers.

POLYMER CHEMISTRY (2021)

Article Chemistry, Physical

Synthesis and gas permeation properties of tetraoxidethianthrene-based polymers of intrinsic microporosity

Sarah A. Felemban et al.

Summary: Nine polymers of intrinsic microporosity (PIMs) synthesized from different bis-catechol monomers and 2,3,7,8-tetrafluoro-5,5',10,10'-tetraoxidethianthrene (TOT) show potential for gas separation membranes. Some of the polymers are soluble in quinoline and exhibit an increase in permeability with temperature, while a decrease in selectivity is observed for most gas pairs.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Engineering, Chemical

Highly permeable polyimides incorporating Troger's base (TB) units for gas separation membranes

Xiaofan Hu et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

Article Materials Science, Multidisciplinary

Polymers of Intrinsic Microporosity Having Bulky Substitutes and Cross-Linking for Gas Separation Membranes

Xiuling Chen et al.

ACS APPLIED POLYMER MATERIALS (2020)

Article Polymer Science

Fine-tuning the molecular structure of binaphthalene polyimides for gas separations

Wouter Dujardin et al.

EUROPEAN POLYMER JOURNAL (2019)

Article Materials Science, Multidisciplinary

Synthesis and characterization of bis(phenyl)fluorene-based cardo polyimide membranes for H2/CH4 separation

Caili Zhang

JOURNAL OF MATERIALS SCIENCE (2019)

Review Polymer Science

Polyimides in membrane gas separation: Monomer's molecular design and structural engineering

Hamidreza Sanaeepur et al.

PROGRESS IN POLYMER SCIENCE (2019)

Review Polymer Science

A review of polymeric composite membranes for gas separation and energy production

Can Zeng Liang et al.

PROGRESS IN POLYMER SCIENCE (2019)

Review Chemistry, Multidisciplinary

Modeling Amorphous Microporous Polymers for CO2 Capture and Separations

Grit Kupgan et al.

CHEMICAL REVIEWS (2018)

Review Chemistry, Multidisciplinary

Gas Permeation Properties, Physical Aging, and Its Mitigation in High Free Volume Glassy Polymers

Ze-Xian Low et al.

CHEMICAL REVIEWS (2018)

Article Chemistry, Multidisciplinary

Microporous Organic Materials for Membrane-Based Gas Separation

Xiaoqin Zou et al.

ADVANCED MATERIALS (2018)

Article Nanoscience & Nanotechnology

Triptycene-Based Microporous Cyanate Resins for Adsorption/Separations of Benzene/Cyclohexane and Carbon Dioxide Gas

Gaoyang Deng et al.

ACS APPLIED MATERIALS & INTERFACES (2017)

Article Chemistry, Multidisciplinary

Soluble, microporous, Troger's Base copolyimides with tunable membrane performance for gas separation

Yongbing Zhuang et al.

CHEMICAL COMMUNICATIONS (2016)

Article Engineering, Chemical

High-strength, soluble polyimide membranes incorporating Troger's Base for gas separation

Yongbing Zhuang et al.

JOURNAL OF MEMBRANE SCIENCE (2016)

Article Chemistry, Physical

Tunable Permittivity in High-Performance Hyperbranched Polyimide Films by Adjusting Backbone Rigidity

Xingfeng Lei et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2016)

Article Materials Science, Multidisciplinary

Hyperbranched polysiloxane (HBPSi)-based polyimide films with ultralow dielectric permittivity, desirable mechanical and thermal properties

Xingfeng Lei et al.

JOURNAL OF MATERIALS CHEMISTRY C (2016)

Article Engineering, Chemical

Gas permeation and physical aging properties of iptycene diamine-based microporous polyimides

Fahd Alghunaimi et al.

JOURNAL OF MEMBRANE SCIENCE (2015)

Review Polymer Science

Rigid and microporous polymers for gas separation membranes

Seungju Kim et al.

PROGRESS IN POLYMER SCIENCE (2015)

Article Materials Science, Multidisciplinary

New aromatic polyamides and polyimides having an adamantane bulky group

Diego Plaza-Lozano et al.

MATERIALS TODAY COMMUNICATIONS (2015)

Article Chemistry, Multidisciplinary

Energy-Efficient Hydrogen Separation by AB-Type Ladder-Polymer Molecular Sieves

Bader S. Ghanem et al.

ADVANCED MATERIALS (2014)

Article Engineering, Chemical

Thermal rearranged poly(benzoxazole-co-imide) membranes for CO2 separation

Colin A. Scholes et al.

JOURNAL OF MEMBRANE SCIENCE (2014)

Article Polymer Science

Troger's Base-Based Microporous Polyimide Membranes for High-Performance Gas Separation

Zhenggong Wang et al.

ACS MACRO LETTERS (2014)

Article Chemistry, Physical

Microporous Functionalized Triazine-Based Polyimides with High CO2 Capture Capacity

Mario R. Liebl et al.

CHEMISTRY OF MATERIALS (2013)

Editorial Material Multidisciplinary Sciences

Polymer Rigidity Improves Microporous Membranes

Michael D. Guiver et al.

SCIENCE (2013)

Article Multidisciplinary Sciences

An Efficient Polymer Molecular Sieve for Membrane Gas Separations

Mariolino Carta et al.

SCIENCE (2013)

Article Engineering, Chemical

Gas transport properties of polyimide-POSS nanocomposites

Pallavi Iyer et al.

JOURNAL OF MEMBRANE SCIENCE (2010)

Article Engineering, Chemical

The upper bound revisited

Lloyd M. Robeson

JOURNAL OF MEMBRANE SCIENCE (2008)