1
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Liu Y, Xue B, Chen J, Lai Y, Cai L, Yin P. Supramolecular Complexation Reinforced Polymer Frustrated Packing: Controllable Dual Porosity for Improved Permselectivity of Coordination Nanocage Mixed Matrix Membranes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400605. [PMID: 38794874 DOI: 10.1002/smll.202400605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/13/2024] [Indexed: 05/26/2024]
Abstract
The developments of mixed matrix membranes (MMMs) are severely hindered by the complex inter-phase interaction and the resulting poor utilization of inorganics' microporosity. Herein, a dual porosity framework is constructed in MMMs to enhance the accessibility of inorganics' microporosity to external gas molecules for the effective application of microporosity for gas separation. Nanocomposite organogels are first prepared from the supramolecular complexation of rigid polymers and 2 nm microporous coordination nanocages (CNCs). The network structures can be maintained with microporous features after solvent removal originated from the rigid nature of polymers, and the strong coordination and hydrogen bond between the two components. Moreover, the strong supramolecular attraction reinforces the frustrated packing of the rigid polymers on CNC surface, leading to polymer networks' extrinsic pores and the interconnection of CNCs' micro-cavities for the fast gas transportation. The gas permeabilities of the MMMs are 869 times for H2 and 1099 times for CO2 higher than those of pure polymers. The open metal sites from nanocage also contribute to the enhanced gas selectivity and the overall performance surpasses 2008 H2/CO2 Robeson upper bound. The supramolecular complexation reinforced packing frustration strategy offers a simple and practical solution to achieve improved gas permselectivity in MMMs.
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Affiliation(s)
- Yuan Liu
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Linkun Cai
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
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2
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Liu-Fu W, Xiao H, Chen J, Cai L, Yang J, Xue B, Lan L, Lai Y, Yin JF, Yin P. Unique Viscoelasticity and Hierarchical Relaxation Dynamics of Molecular Granular Materials. NANO LETTERS 2024; 24:3307-3314. [PMID: 38456631 DOI: 10.1021/acs.nanolett.3c03636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Resulting from the dense packing of subnanometer molecular clusters, molecular granular materials (MGMs) are shown to maintain high elasticity far above their apparent glass transition temperature (Tg*). However, our microscopic understanding of their structure-property relationship is still poor. Herein, 1 nm polyhedral oligomeric silsesquioxanes (POSSs) are appended to a backbone chain in a brush configuration with different flexible linker chains. Assemblies of these brush polymers exhibit hierarchical relaxation dynamics with the glass transition arising from the cooperative dynamics of packed POSSs. The interaction among the assemblies can be strengthened by increasing the rigidity of linkers with the MGM relaxation modes changing from colloid- to polymer chain-like behavior, rendering their tunable viscoelasticity. This finally contributes to the decoupling of mechanical and thermal properties by showing elasticity dominant mechanical properties at a temperature 150 K above the Tg*.
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Affiliation(s)
- Wei Liu-Fu
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Haiyan Xiao
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Linkun Cai
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Junsheng Yang
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Linjie Lan
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jia-Fu Yin
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices and South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
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Liu Y, Xue B, Chen J, Lai Y, Yin P. The Coordination Nanocages-Integrated Polymer Brush Networks for Flexible Microporous Membranes with Exceptional H 2 /CO 2 Separation Performance. Macromol Rapid Commun 2023; 44:e2300477. [PMID: 37814593 DOI: 10.1002/marc.202300477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/07/2023] [Indexed: 10/11/2023]
Abstract
The emergence of polymers with intrinsic microporosity provides solutions for flexible gas separation membranes with both high gas permeability and selectivity. However, their applications are significantly hindered by the costly synthetic efforts, limited availability of chemical systems, and narrow window of microporosity sizes. Herein, flexible mixed matrix membranes with tunable intrinsic microporosity can be facilely fabricated from the coordination assembly of polymer brushes and coordination nanocages. Polymer brushes bearing isophthalic acid side groups can coordinate with Cu2+ to assemble into polymer networks crosslinked by 2 nm nanocages. The semi-flexible feature of the polymer brush and the high crosslinking density of the network prevent the network from collapsing during solvent removal and the obtained aerogels demonstrate hierarchical structure with dual porosity from the crosslinked polymer network and coordination nanocage, respectively. The porosity can be facilely tuned via the amount of Cu2+ by regulating the network crosslinking density and nanocage loadings, and finally, optimized gas separation that surpasses Robeson upper bound for H2 /CO2 can be achieved. The coordination-driven assembly protocol paves a new avenue for the cost-effective synthesis of polymers with intrinsic microporosity and the fabrication of flexible gas separation membranes.
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Affiliation(s)
- Yuan Liu
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
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Liu-Fu W, Zhou X, Chen J, Yin JF, Yang J, Yin P. Functional Molecular Granular Materials: Advances and Perspectives. Chem Asian J 2023; 18:e202300184. [PMID: 37116101 DOI: 10.1002/asia.202300184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/04/2023] [Indexed: 04/30/2023]
Abstract
Molecular granular materials (MGMs) are constructed with sub-nanoscale molecular clusters (MCs) as the building units and they have recently been observed to possess enriched functionalities distinct from granular materials of colloid nanoparticles. Herein, the birth and recent research advances in MGMs are summarized with the topics covering the precise synthesis of MC assemblies with target topologies, the hierarchical relaxation dynamics and tuneable viscoelasticity, impact-resistant capacity, and proton conductivity performance. The extremely small size of MC renders them two features: bulk diffusive dynamics with energy scale close to thermal fluctuation energy and the dominant volume fraction of surface structures. This finally leads to the hierarchical relaxation dynamics and broadly tuneable viscoelasticity of MGMs although the structural units are with small sizes and low Mw . Therefore, MGMs have been applied as impact resistant materials and proton conductors for the highly tuneable relaxation dynamics.
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Affiliation(s)
- Wei Liu-Fu
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xin Zhou
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jia-Fu Yin
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Junsheng Yang
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices &, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
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Zhang Y, Sheng K, Wang Z, Wu W, Yin BH, Zhu J, Zhang Y. Rational Design of MXene Hollow Fiber Membranes for Gas Separations. NANO LETTERS 2023; 23:2710-2718. [PMID: 36926943 DOI: 10.1021/acs.nanolett.3c00004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
One scalable and facile dip-coating approach was utilized to construct a thin CO2-selection layer of Pebax/PEGDA-MXene on a hollow fiber PVDF substrate. An interlayer spacing of 3.59 Å was rationally designed and precisely controlled for the MXene stacks in the coated layer, allowing efficient separation of the CO2 (3.3 Å) from N2 (3.6 Å) and CH4 (3.8 Å). In addition, CO2-philic nanodomains in the separation layer were constructed by grafting PEGDA into MXene interlayers, which enhanced the CO2 affinity through the MXene interlayers, while non-CO2-philic nanodomains could promote CO2 transport due to the low resistance. The membrane could exhibit optimal separation performance with a CO2 permeance of 765.5 GPU, a CO2/N2 selectivity of 54.5, and a CO2/CH4 selectivity of 66.2, overcoming the 2008 Robeson upper bounds limitation. Overall, this facile approach endows a precise controlled molecular sieving MXene membrane for superior CO2 separation, which could be applied for interlayer spacing control of other 2D materials during membrane construction.
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Affiliation(s)
- Yiming Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Natural Sciences, Massey University, Palmerston North, 4410, New Zealand
| | - Kai Sheng
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Zheng Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Wenjia Wu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Ben Hang Yin
- Robinson Research Institute, Faculty of Engineering, Victoria University of Wellington, Wellington 5046, New Zealand
- The MacDiarmid Institute of Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 5046, New Zealand
| | - Junyong Zhu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Yatao Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
- Engineering Research Centre of Advanced Manufacturing of Ministry of Education, Zhengzhou, 450001, PR China
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Schmarsow RN, Casado U, Ceolín M, Zucchi IA, Müller AJ, Schroeder WF. Supramolecular Networks Obtained by Block Copolymer Self-Assembly in a Polymer Matrix: Crystallization Behavior and Its Effect on the Mechanical Response. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Ruth N. Schmarsow
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, 7600 Mar del Plata, Argentina
| | - Ulises Casado
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, 7600 Mar del Plata, Argentina
| | - Marcelo Ceolín
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CONICET, CC 16-Suc. 4, 1900 La Plata, Argentina
| | - Ileana A. Zucchi
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, 7600 Mar del Plata, Argentina
| | - Alejandro J. Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal 3, 20018, Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| | - Walter F. Schroeder
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, 7600 Mar del Plata, Argentina
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7
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Zheng Z, Li M, Lai Y, Cao Y, Yin P. Decoupling Segmental Dynamics and Ionic Transport for Superionic Anhydrous Proton Conductors of Polyoxometalate-poly(ethylene glycol) Nanocomposites. Macromol Rapid Commun 2023; 44:e2200227. [PMID: 35642732 DOI: 10.1002/marc.202200227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/27/2022] [Indexed: 01/11/2023]
Abstract
Superionic anhydrous proton conductors can be obtained from the complexation of nanoscale polyoxometalates (POMs) and poly(ethylene glycol) (PEG) in the "polymer in salt" regime. The reduced energy barrier of H+ hopping is facilitated from the increased H+ concentration and shortened inter-POM distances. POMs with identical structure/size (≈1 nm) but different charge densities are complexed with PEG, respectively, with concentrations ranging from 10 to 60 % wt. Increasing trends of viscosities can be observed with the rising charge densities of POMs due to the increasing confinement strength on PEG substrate from POMs. Fractional Walden rule is further applied to analyze the viscosity and proton conductivity correlations, and microscopic mechanisms of proton conduction for PEG-POM nanocomposites are revealed: 1) ion transport is highly associated with polymer chain dynamic for POMs concentrations ranging from 10 to 30 % wt.; 2) ionic conduction is largely decoupled from chain dynamic of polymer matrix for concentrations ranging from 40 to 60 % wt. with Walden plots shifted to the superionic regime. The decoupling of proton transport from polymer segment dynamics allows the simultaneous enhancements of the nanocomposites' mechanical properties and proton conductions, providing guidelines for the rational design of anhydrous proton conductors with integrated functionalities.
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Affiliation(s)
- Zhao Zheng
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Mu Li
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Yuyan Lai
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Youjin Cao
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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8
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Liu J, Li J, Qiao S, Wang Z, Zhang P, Fan X, Cheng P, Li Y, Chen Y, Zhang Z. Self‐Healing and Shape Memory Hypercrosslinked Metal‐Organic Polyhedra Polymers via Coordination Post‐Assembly. Angew Chem Int Ed Engl 2022; 61:e202212253. [DOI: 10.1002/anie.202212253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Jinjin Liu
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
| | - Jiamin Li
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
| | - Shan Qiao
- College of Pharmacy Nankai University Tianjin 300071 China
| | - Zhifang Wang
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
| | - Penghui Zhang
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
| | - Xiangqian Fan
- School of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin 300350 China
| | - Peng Cheng
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center Nankai University Tianjin 300071 China
| | - Yue‐Sheng Li
- Tianjin Key Lab Composite & Functional Materials School of Materials Science and Engineering Tianjin University Tianjin 300350 China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
- College of Pharmacy Nankai University Tianjin 300071 China
| | - Zhenjie Zhang
- State Key Laboratory of Medicinal Chemical biology College of Chemistry Nankai University Tianjin 300071 China
- College of Pharmacy Nankai University Tianjin 300071 China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center Nankai University Tianjin 300071 China
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Liu J, Li J, Qiao S, Wang Z, Zhang P, Fan X, Cheng P, Li YS, Chen Y, Zhang Z. Self‐Healing and Shape Memory Hypercrosslinked Metal‐Organic Polyhedra Polymers via Coordination Post‐Assembly. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202212253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinjin Liu
- Nankai University College of Chemistry CHINA
| | - Jiamin Li
- Nankai University College of Chemistry CHINA
| | - Shan Qiao
- Nankai University College of Chemistry CHINA
| | | | | | | | - Peng Cheng
- Nankai University College of Chemistry CHINA
| | | | - Yao Chen
- Nankai University College of Chemistry CHINA
| | - Zhenjie Zhang
- Nankai University Chemistry Weijin Road 94# 300071 Tianjin CHINA
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10
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Xiao H, Wang H, Zhang M, Chen J, Lai Y, Yang J, Yin JF, Yin P. Controllable gelation of coordination nanocages from the physical interactions among surface grafted cholesteryl groups. SOFT MATTER 2022; 18:6264-6269. [PMID: 35959721 DOI: 10.1039/d2sm00766e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Coordination nanocage (CNC) incorporated gels have attracted enormous attention for the effective integration of micro-porosity, mechanical flexibility and processability; however, the understanding of their microscopic structure-property relationships remains unclear. Herein, CNCs with 24 surface grafted cholesterol groups are constructed precisely and their gelation can be manipulated upon the tunning of solvent polarities. Optically homogeneous organogels can be formed by introducing a certain amount of bad solvents into the solutions of hairy CNCs and the gelation can be reversed through temperature variation. Suggested from scattering and molecular dynamics studies, the solvophobic interaction-driven aggregation of cholesterol units contributes to the physical crosslinking of CNCs and finally the gelation of CNC solutions. The mechanical strength of the obtained gels is observed to be highly dependent on the flexibility of the organic linkers that bond the cholesterol units on the CNC surface. The effective interaction and dense packing of the cholesterol units in their aggregates highly rely on the degree of freedom of the cholesterol, which is controlled by the flexibility of the organic linkers that bond them on the CNC surface. The observed viscoelastic performance accompanied by the well-controlled mechanical strength of the organogels unambiguously demonstrates the potential for exploiting the synergistic physical correlations to fabricate novel functional materials from CNCs.
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Affiliation(s)
- Haiyan Xiao
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Huihui Wang
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Mingxin Zhang
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Jiadong Chen
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Yuyan Lai
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Junsheng Yang
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Jia-Fu Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
- Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Zhongziyuan Road, Dalang, Dongguan, 523803, China
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11
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Li TT, Liu SN, Wu LH, Cai SL, Zheng SR. Strategies for the Construction of Functional Materials Utilizing Presynthesized Metal-Organic Cages (MOCs). Chempluschem 2022; 87:e202200172. [PMID: 35922387 DOI: 10.1002/cplu.202200172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/13/2022] [Indexed: 11/10/2022]
Abstract
Metal-organic cages (MOCs) that assemble from metal ions or metal clusters and organic ligands have attracted the interest of the scientific community because of their various functional coordination cavities. Unlike metal-organic frameworks (MOFs) with infinite frameworks, MOCs have discrete structures, making them soluble and stable in certain solvents and facilitating their application as starting reagents in the further construction of single components or composite materials. In recent years, increasing progress has been made in this field. In this review, we introduce these works from the perspective of design strategies, and focus on how presynthesized MOCs can be used to construct functional materials. Finally, we discuss the challenges and development prospects in this field.
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Affiliation(s)
- Tian-Tian Li
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, 550002, P. R. China
| | - Shu-Na Liu
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, P. R. China
| | - Liang-Hua Wu
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, P. R. China
| | - Song-Liang Cai
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, P. R. China
| | - Sheng-Run Zheng
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, P. R. China.,SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan, Guangdong, 511517, P. R. China
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12
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Hu L, Fan S, Huang L, Bui VT, Tran T, Chen K, Ding Y, Swihart MT, Lin H. Supramolecular Polymer Networks of Ion-Coordinated Polybenzimidazole with Simultaneously Improved H 2 Permeability and H 2/CO 2 Selectivity. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leiqing Hu
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Shouhong Fan
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Liang Huang
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Vinh T. Bui
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Thien Tran
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Kaiwen Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Yifu Ding
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Mark T. Swihart
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Haiqing Lin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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Liu J, Wang Z, Cheng P, Zaworotko MJ, Chen Y, Zhang Z. Post-synthetic modifications of metal–organic cages. Nat Rev Chem 2022; 6:339-356. [PMID: 37117929 DOI: 10.1038/s41570-022-00380-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2022] [Indexed: 12/18/2022]
Abstract
Metal-organic cages (MOCs) are discrete, supramolecular entities that consist of metal nodes and organic linkers, which can offer solution processability and high porosity. Thereby, their predesigned structures can undergo post-synthetic modifications (PSMs) to introduce new functional groups and properties by modifying the linker, metal node, pore or surface environment. This Review explores current PSM strategies used for MOCs, including covalent, coordination and noncovalent methods. The effects of newly introduced functional groups or generated complexes upon the PSMs of MOCs are also detailed, such as improving structural stability or endowing desired functionalities. The development of the aforementioned design principles has enabled systematic approaches for the development and characterization of families of MOCs and, thereby, provides insight into structure-function relationships that will guide future developments.
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Schneider ML, Campbell JA, Slattery AD, Bloch WM. Polymer networks of imine-crosslinked metal–organic cages: tuneable viscoelasticity and iodine adsorption. Chem Commun (Camb) 2022; 58:12122-12125. [DOI: 10.1039/d2cc04969d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The solution-state structure of MOP-15 is elucidated, enabling its direct use as a porous monomer for covalent polymer networks.
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Affiliation(s)
| | - Jonathan A. Campbell
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia, 5035, Australia
| | - Ashley D. Slattery
- Adelaide Microscopy, The University of Adelaide, Adelaide, 5005, Australia
| | - Witold M. Bloch
- Department of Chemistry, The University of Adelaide, Adelaide, Australia
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia, 5035, Australia
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