Effects of synthesis methodology on microporous organic hyper-cross-linked polymers with respect to structural porosity, gas uptake performance and fluorescence properties

Hou, Shuangshuang; Razzaque, Shumaila; Tan, Bien

doi:10.1039/c8py01730a

Cited by 105 publications

(80 citation statements)

References 84 publications

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“…However, HCLPs 2–4 exhibit similar broad EBs with emission maxima at 433 nm (Figure 6b). Compared with polymers synthesized by Hou and co‐workers, HCLPs share similar optical property pattern with slight enhancement.…”

Section: Resultssupporting

confidence: 74%

“…As shown in Figure S1, Supporting Information, the disappearances of C‐H bands around 795 cm −1 and CC vibration bands around 1737–1955 cm −1 indicate the elimination of hydrogen and substitutes on naphthalene ring. The absorbance around 2900 cm −1 results from the C‐H stretching vibrations of the methylene bridges in HCLPs 1–3, but it was not observed in either naphthalene or HCLP 4, indicating that HCLPs 1–3 have the methylene linkages. The polymerization was further characterized by solid state 13 C CP/MAS NMR analysis ( Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…According to Figure , HCLPs 1–12 have the same optical properties as polymers synthesized by Hou and co‐workers and possess potential in sensor, electric conduction, and other applications.…”

Section: Resultsmentioning

confidence: 99%

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Investigation on Naphthalene and Its Derivatives‐Based Microporous Organic Hyper‐Cross‐Linked Polymers via Different Methodologies

Teng

Wei

Yang

et al. 2020

Macro Chemistry & Physics

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A series of cost‐effective hyper‐cross‐linked polymers (HCLPs) are synthesized from naphthalene via the external cross‐linker (ECL) knitting method, the solvent knitting method, and the Scholl coupling reaction, respectively. According to multiple characterizations, the resulting polymers are thermally stable and fluorescent with large specific surface areas (SSAs) and narrow pore distributions. In particular the HCLP synthesized using dimethoxymethane as the ECL exhibits SSAs up to 2870 m2 g−1 and shows a great potential in gas adsorption applications. Naphthol and 1‐methylnaphthalene are used as monomers to synthesize HCLPs by the above three methods to investigate whether introducing functional groups to naphthalene would improve properties of the resulting polymers. Moreover, HCLPs feature high SSAs, outstanding thermal and fluorescent performances, and facile synthesis, making them promising candidates for industrial applications.

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Section: Resultssupporting

confidence: 74%

Section: Resultsmentioning

confidence: 99%

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Investigation on Naphthalene and Its Derivatives‐Based Microporous Organic Hyper‐Cross‐Linked Polymers via Different Methodologies

Teng

Wei

Yang

et al. 2020

Macro Chemistry & Physics

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“…In brief, the OPS were first synthesized by hydrolyzation of phenyltriethoxysilane (PTES), then the HOPS copolymers were synthesized by OPS and PPh 3 through a Friedel-Crafts alkylation reaction. [21] Subsequent treatment with HF and loading with palladium to give the vesicle structure catalyst, the diameter of vesicle was controlled by etch time.…”

Section: Resultsmentioning

confidence: 99%

Effect of Vesicle Structure on Catalytic Activity of Suzuki‐Miyaura Cross‐Coupling Reaction: Impact of Framework and Morphology

2020

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A novel hybrid porous polymer with hollow vesicle structure has been synthesized via Friedel-Crafts alkylation reaction and solvent-induced method. The resulting two-dimensional networks are hierarchical porous materials with high Brunauer-Emmett-Teller (BET) surface area of 1582 m 2 g À 1. The vesicle structure directly influenced the activity and shaping the performance of the catalyst. The kinetic study reveals the special vesicle structure can enrich the substrates in a limit scope and increase the reaction rate. It has been demonstrated that the framework and morphology play a major role on the catalysts' excellent performance in Suzuki-Miyaura cross-coupling reaction of aryl chlorides. These findings help elucidate the mode action of the vesicle structure in the unrevealed Suzuki reaction mechanism of supports and the potential development of new morphology control catalysts.

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“…HCP is highly applicable in energy and environment sectors such as for gas storage, carbon capture/removal, pollutant isolation/removal, and catalysts due to the advantages of a variety of synthesis methods, easy functionalization, high surface area, and mild reaction conditions [ 23 , 24 , 25 , 26 ]. When HCP bonds to the inner pores of LWA, the strength of the LWA is enhanced by the physical/chemical bonding between the HCP and the porous surface and the light weight of the LWA is maintained.…”

Section: Resultsmentioning

confidence: 99%

Enhancing Functionality of Epoxy–TiO2-Embedded High-Strength Lightweight Aggregates

et al. 2020

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With the increasing trend of high-rise, large-scale, and functional modern architectural structures, lightweight aggregate (LWA) concrete that exhibits excellent strength and high functionality has garnered active research attention. In particular, as the properties of concrete vary considerably with the raw materials and the proportions of aggregates in the mix, in-depth research on weight reduction, strength improvement, and functional enhancements of aggregates is crucial. This study used the negative pressure coating of a mixed solution comprising epoxy (mixture of epoxy resin and crosslinker), hyper-crosslinked polymer, and titanium oxide (TiO2) nanoparticles on the LWA, and achieved an improvement in the strength of the LWA as well as a reduction in air pollutants such as NOx and SOx. Compared to a normal LWA with an aggregate impact value (AIV) of 38.7%, the AIV of the proposed epoxy–TiO2-embedded high-strength functional LWA was reduced by approximately half to 21.1%. In addition, the reduction rates of NOx and SOx gases resulting from the photocatalytic properties of TiO2 nanoparticles coated with epoxy were approximately 90.9% and 92.8%, respectively. Epoxy–TiO2, embedded in LWAs through a mixture, exhibited stability, high strength, and a reduction in air pollutant characteristics, despite repeated water washing. The LWA proposed herein offers excellent structural and functional properties and is expected to be used in functional lightweight concrete that can be practically applied in high-rise and large-scale architectural structures.

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Effects of synthesis methodology on microporous organic hyper-cross-linked polymers with respect to structural porosity, gas uptake performance and fluorescence properties

Abstract: The structural characteristics of hyper-cross-linked polymers (HCPs) make them interesting for a wide variety of applications.

Cited by 105 publications

References 84 publications

Investigation on Naphthalene and Its Derivatives‐Based Microporous Organic Hyper‐Cross‐Linked Polymers via Different Methodologies

Investigation on Naphthalene and Its Derivatives‐Based Microporous Organic Hyper‐Cross‐Linked Polymers via Different Methodologies

Effect of Vesicle Structure on Catalytic Activity of Suzuki‐Miyaura Cross‐Coupling Reaction: Impact of Framework and Morphology

Enhancing Functionality of Epoxy–TiO2-Embedded High-Strength Lightweight Aggregates

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