Photoinduced Postsynthetic Polymerization of a Metal–Organic Framework toward a Flexible Stand‐Alone Membrane

Zhang, Yuanyuan; Feng, Xiao; Li, Haiwei; Chen, Yifa; Zhao, Jingshu; Wang, Shan; Wang, Lu; Wang, Bo

doi:10.1002/anie.201500207

Cited by 242 publications

(160 citation statements)

References 73 publications

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“…21,22 High additive loading generally causes severe embrittlement, though a few recent studies have reported stable MMM films through targeted polymer-additive interactions. 12,[23][24][25][26] Similarly, adsorption of polymer chains in super-porous additives have been used to stop age-related permselectivity loss in glassy MMM. 12,[27][28][29] To date, there is no complete model describing the complex polymer-additive interactions responsible for MMM properties and little is known about how additive incorporation affects the mechanical resilience of polymer nanocomposites with aging.…”

Section: Introductionmentioning

confidence: 99%

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

et al. 2016

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Despite the exceptional separation performance of modern glassy mixed matrix membranes, these materials are not being utilized to improve the performance of existing membrane technologies. Nano-sized additives can greatly enhance separation performance, and have recently been used to overcome age-related performance loss of high performance MMMs. However nano-additives also compromise the structural integrity of films and little is known on how physical aging affects their mechanical properties over time. A solution for both physical aging and mechanical instability is required before these high performance materials can be utilised in industrial membrane applications. Here, we examine physical aging in mixed matrix membranes through mechanical properties and single gas permeation measurements using three glassy polymers, Matrimid® 5218, poly-1-trimethylsilyl-1-propyne (PTMSP), and a Polymer of Intrinsic Microporosity (PIM-1); and a range of nano-scale additives; Silica, PAF-1, UiO-66, and Ti5UiO-66, each previously shown to enhance gas separation performance. We find polymer-additive interactions strongly influence local physical aging and play a key role in determining the overall material properties of glassy nanocomposite films. Strong interface interactions can slow physical aging, and may not correlate to reinforced or age-stable films. Whereas traditionally 'incompatible' nanocomposites exhibit mechanical properties that can improve over time and even outperform their native polymers.Tuning polymer-additive interactions is vital to achieving the physical aging, mechanical stability, and permselectivity requirements of advanced mixed matrix membrane technologies and reducing the enormous global energy cost of separation processes.

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Section: Introductionmentioning

confidence: 99%

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

et al. 2016

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“…Grafting polymers from MOFs 23 or post synthetic polymerization to link MOF crystals together 18 are both promising routes to address these problems. However, the inclusion of polymers into MOF void space can be problematic for maximizing the accessibility of internal pores.…”

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confidence: 99%

Polymer@MOF@MOF: “grafting from” atom transfer radical polymerization for the synthesis of hybrid porous solids

et al. 2015

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“…Moreover, gelation offers the advantage of minimizing electrolyte leakage over time, while maintaining good contact between the dye molecules and the redox mediator. Last but not least, the DSSC community can take advantage of the recent strong advances carried out in the field of polymer science and technology [73][74][75][76][77][78][79] to achieve the best performance and stability in the resulting devices. Spiccia and coworkers proposed cobalt-based gel electrolytes with 4 to 10 wt% of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) incorporated in ACN [80].…”

Section: Polymeric Matrices-based Electrolytes Containing Cobalt Compmentioning

confidence: 99%

Cobalt-Based Electrolytes for Dye-Sensitized Solar Cells: Recent Advances towards Stable Devices

et al. 2016

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Abstract:Redox mediators based on cobalt complexes allowed dye-sensitized solar cells (DSCs) to achieve efficiencies exceeding 14%, thus challenging the emerging class of perovskite solar cells. Unfortunately, cobalt-based electrolytes demonstrate much lower long-term stability trends if compared to the traditional iodide/triiodide redox couple. In view of the large-scale commercialization of cobalt-based DSCs, the scientific community has recently proposed various approaches and materials to increase the stability of these devices, which comprise gelling agents, crosslinked polymeric matrices and mixtures of solvents (including water). This review summarizes the most significant advances recently focused towards this direction, also suggesting some intriguing way to fabricate third-generation cobalt-based photoelectrochemical devices stable over time.

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Photoinduced Postsynthetic Polymerization of a Metal–Organic Framework toward a Flexible Stand‐Alone Membrane

Cited by 242 publications

References 73 publications

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

Polymer@MOF@MOF: “grafting from” atom transfer radical polymerization for the synthesis of hybrid porous solids

Cobalt-Based Electrolytes for Dye-Sensitized Solar Cells: Recent Advances towards Stable Devices

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