Artificial reactor containing polymeric bilayer architectures for the formation of self-controlled tandem catalytic-ability

Xia, Zijun; Wei, Wenjing; Zhu, Maiyong; Wu, Shuping; Shen, Xiaojuan; Li, S.

doi:10.3144/expresspolymlett.2020.3

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…9; Table 1). Normally, the larger potential for substrate releasing depicts the stronger interactions engaging in the dynamic release process [37,38]. The detailed theory, as outlined in Scheme 2, has been described elsewhere [39].…”

Section: Dynamic Binding and Controlled Entrancementioning

confidence: 99%

A Trilaminar-Thermosensitive Hydrogel Catalytic Reactor Capable of Single/Tandem Catalytic Switchable Ability

Luo

Zhu

et al. 2022

J Inorg Organomet Polym

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The present endeavor is to develop a highly-intelligent catalytic reactor prototype which is able to autonomously adapt to the environment and provides an in-situ double-shift catalytic ability. By seeking inspiration from nature, this objective is achieved by developing a self-adaptive hydrogel catalytic reactor which held a catalytic trilaminar structure capable of reverse thermosensitive properties. With increasing temperatures, the catalytic tri-layers of this catalytic reactor would function in a sequential way (i.e., one negative temperature response layer, one support layer and one positive temperature response layer) and as a result, led to the single-tandem double-shift catalytic ability. This catalytic reactor individually presented single/tandem catalytic process at relatively low temperatures or high temperatures through the cooperative work of the three layers. In this way, this catalytic reactor showed the single-tandem controllable catalytic ability. The novel protocol not only provides a new solution to complicated catalytic processes but also inspires the further application of smart polymers in a broader spectrum of areas.

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Section: Dynamic Binding and Controlled Entrancementioning

confidence: 99%

A Trilaminar-Thermosensitive Hydrogel Catalytic Reactor Capable of Single/Tandem Catalytic Switchable Ability

Luo

Zhu

et al. 2022

J Inorg Organomet Polym

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“…In this way, the imprinted catalysis allows the target reaction and avoid the redundant side effects, achieving desired tandem catalysis. However, it is also necessary to control the tandem catalysis process as there are many different kinds of reactions and specific needs in practical use [13]. As a result, the tandem catalysts need further improvement to prepare a more delicate structure to perform intelligent tandem catalysis.…”

Section: Introductionmentioning

confidence: 99%

Towards next generation “smart” tandem catalysts with sandwiched mussel-inspired layer switch

Wei

Thakur

Chew

et al. 2020

Materials Today Chemistry

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In this paper, we prepared a novel reactor with switchable ability to address present challenges in tandem catalyst. By introducing mussel-inspired moiety, this goal was achieved via preparing a "smart" polymer reactor which can open or closes the entry tunnel of the targeted substrate in cascade reactions. The catalyst consisted of two functional layers acting as tandem catalytic parts and one smart layer with musselinspired moieties as a controlled middle switch. The top and the bottom layer were made of molecularly imprinted polymers and catalytic components, like acidic parts and metal nanoparticles, respectively. The middle layer made of polymeric dopamine (PDPA) and acrylamide with self-healing ability will allow or inhibit the intermediate product for the reaction, thus controlling the process of the tandem catalysis. As a result, the novel catalyst exhibited self-controlled tandem catalysis, which provides new opportunities to design smart tandem catalysts, showing a promising prospect in this area.

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“…In this way, the self-controlled tandem catalysts are able to achieve the self-modulated sequential reactions [11][12][13][14][15]. Despite the progress [16,17], there are not too many practical applications of the self-controlled tandem catalysts in recent days. One significant problem comes from the complicated process of the practical tandem processes, which contains a series of different catalytic processes, sometimes incorporating both cascade and non-cascade processes.…”

Section: Introductionmentioning

confidence: 99%

Smart bilayer polymer reactor with cascade/non-cascade switching catalyst characteristics

Wei

Xiao

Thakur

et al. 2020

Materials Today Chemistry

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This study is aimed at addressing how to furnish the catalysts with cascade/non-cascade switching catalytic ability. Inspired from the "soft" properties and divisional isolation function in natural biological systems, this objective was accomplished by developing a new class of hydrogel made of two unique functional layers with different temperature responses where each may self-govern coupled process at a specific temperature condition. This hydrogel polymer catalyst showed almost no catalytic activity at relatively low temperatures (< 37℃) as both channels of bilayer hydrogel polymer catalyst were closed. At modest temperatures (between 37℃ and 50℃), the first step of the tandem reaction (the hydrolysis of p-nitrophenyl acetate (NPA)) showed significant reactivity that arises from the relaxing of the weak polymer complexes hydrogel layer. This allowed NPA to gain entrance to the acidic catalytic active center of the hydrogel. At relatively high temperatures (> 50℃), this hydrogel polymer catalyst further showed significant reactivity towards the hydrolysis reaction of NPA and reduction reaction of intermediate product p-nitrophenol (NP). It mainly results from the opening of both weak polymer complexes hydrogel layer and stronger polymer complexes hydrogel layer, allowing entrance to both acidic catalytic active center and metal nanoparticles active center. In this way, this hydrogel polymer catalyst demonstrated a controllable cascade/ non-cascade catalytic ability. This suggested protocol provides the inspiration with struggling tandem catalysts, which allows opportunities to finely switchable tandem processes.

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Artificial reactor containing polymeric bilayer architectures for the formation of self-controlled tandem catalytic-ability

Cited by 7 publications

References 31 publications

A Trilaminar-Thermosensitive Hydrogel Catalytic Reactor Capable of Single/Tandem Catalytic Switchable Ability

A Trilaminar-Thermosensitive Hydrogel Catalytic Reactor Capable of Single/Tandem Catalytic Switchable Ability

Towards next generation “smart” tandem catalysts with sandwiched mussel-inspired layer switch

Smart bilayer polymer reactor with cascade/non-cascade switching catalyst characteristics

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