Photoresponsive Conjugated Microporous Polymer Films Fabricated by Electrochemical Deposition for Controlled Release

Zhao, Ruiyang; Han, Jishu; Mei, Huang; Liu, Fusheng; Wang, Lei; Ma, Yan

doi:10.1002/marc.201700274

Cited by 10 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formed films presented uniform micropores with diameters of less than 1 nm as seen from HR‐TEM (high resolution transmission electron microscopy) (Figure 2c). Later, the same group designed a novel 1,2‐bis(4‐(9′H‐[3,6‐tercarbazol]‐9′‐yl)phenyl)diazene (DTCzAzo) monomer to synthesize CMP films [ 123 ] with homogeneous micropores and large specific surface areas (Figure 2a,d). As this yield a high work function anode interlayer, the doped CMP film showed a significant power conversion efficiency of 7.56% in polymer solar cell and a luminous efficiency of 20.7 cd A −1 , which demonstrates its great potential as an electrode interlayer in organic electronics.…”

Section: Preparations Of Macroscale Cmpsmentioning

confidence: 99%

Macroscale Conjugated Microporous Polymers: Controlling Versatile Functionalities Over Several Dimensions

et al. 2022

View full text Add to dashboard Cite

covalently bonded organic moieties. Because of their unique properties derived from their tunable porous structures and the multiple functional groups, which can be included in their backbones, POPs have been actively investigated for multiple applications including gas storage/separation, [2,3] catalysis, [4][5][6] optoelectronics, [7,8] sensing, [9][10][11] energy storage, and conversion. [12,13] Aside from their high specific surface areas, they furthermore show excellent chemical stability, light-weight and a versatile chemistry for modification and functionalization. POPs can be further classified into two categories based on their crystallinity. Crystalline POPs are usually summarized under the name covalent organic frameworks [14][15][16] (COFs). Amorphous POPs are further divided, based on their structure or construction principles into hyper-crosslinked polymers [17,18] (HCPs), polymers of intrinsic microporosity [19,20] (PIMs), porous aromatic frameworks [21,22] (PAFs), and others. Recent research has seen increasing interest on amorphous POPs, especially when their skeleton is π-conjugated. In these highly porous networks, π-conjugation is superimposed with meso-/microporosities, i.e., electron transport in the polymer backbone is accompanied by mass transport in the porous system, which enable many intriguing properties and applications, e.g., in energy storage and conversion, [23,24] or optoelectronics. [25,26] As such, the importance of π-conjugation in porous polymer networks has defined another emerging functional POP class-the conjugated microporous polymers (CMPs). As mentioned, such CMPs [27] are a unique class of POPs exhibiting extended π-conjugated structures and permanent nanopores (Table S1). Earlier, McKeown et al. [28] discussed an important concept of preparing robust nanoporous materials by the covalent binding of planar molecules via a rigid spirocyclic linker. In 2007, Cooper et al. [29] reported a highly cross-linked, microporous poly(arylene ethynylene)s network, thus the first microporous polymer network with distinct π-conjugation and introduced the term "conjugated microporous polymer (CMP)" for this class of materials. Since their discovery, CMPs chemistry has intrigued scientists across the globe and been promoted rapidly, resulting in a strong growth in publications over the last decade. For instance, Thomas et al. [30] reported a spirobifluorene-type CMP with stable interface and application potential in organic light emitting diodes Since discovered in 2007, conjugated microporous polymers (CMPs) have been developed for numerous applications including gas adsorption, sensing, organic and photoredox catalysis, energy storage, etc. While featuring abundant micropores, the structural rigidity derived from CMPs' stable π-conjugated skeleton leads to insolubility and thus poor processability, which severely limits their applicability, e.g., in CMP-based devices. Hence, the development of CMPs whose structure can not only be controlled on the micro-but also on the macroscale have...

show abstract

Section: Preparations Of Macroscale Cmpsmentioning

confidence: 99%

Macroscale Conjugated Microporous Polymers: Controlling Versatile Functionalities Over Several Dimensions

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The EP CMP films were employed for controlled release systems through changing the pore size by photoresponsive action. [ 55 ] The electrochemical deposition process occurred on the surface of the ITO substrate in acetonitrile/dichloromethane mixture solvent containing the Bu 4 NPF 6 electrolyte and DTCzAzo precursors through the CV method under the optimal condition (the scanning range of −0.5 to 1.08 V, the scanning rate of 200 mV s –1 ) ( Figure a). The CMP films exhibited photoresponsive trans ‐ cis isomerization irradiated by 355 and 480 nm laser beams (the intensity of 5 mW cm –2 ) (Figure 7b), corresponding to the pore size is 1.47 nm in trans ‐configuration and 0.87 nm in cis ‐configuration.…”

Section: Applications Of Ep Cmp Filmsmentioning

confidence: 99%

Section: Applications Of Ep Cmp Filmsmentioning

confidence: 99%

See 1 more Smart Citation

Advanced Applications and Challenges of Electropolymerized Conjugated Microporous Polymer Films

Chen

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Conjugated microporous polymers (CMPs) are a unique class of porous materials that have an integrated π‐conjugated system and permanent intrinsic porosity. They are of great interest because of their outstanding performance in gas sorption, photoredox catalysis, energy storage, organic light‐emitting diodes (OLEDs), and sensing applications. However, conventional chemically synthesized CMPs are solid powders and have poor solubility, which makes it difficult to process and integrate devices, and has become a bottleneck preventing their practical applications. Electropolymerization (EP) is a simple and efficient method for the preparation of CMP films, which simultaneously completes material synthesis and film processing. More importantly, the microstructure of the CMP films can be effectively controlled by electrochemical parameters. In this review, first, the basic synthetic principles and strategies of CMP films via EP are introduced, allowing for facile optimization of the structure and properties. Then, the recent progress of the EP CMP films is focused upon in organic electronics, energy storage, sensors, chemical capture and separation, and electrocatalysts. Finally, the challenges and outlook for EP CMP films are addressed.

show abstract

“…The Ullmann coupling of 4,4′-dibromoazobenzene with 3,6-bis(9H-carbazol-9-yl)-9H-carbazole gave a bis(tercarbazole)azobenzene derivative in 46% yield that was used as a precursor for the fabrication of photoresponsive microporous films (Scheme 9). 31…”

Section: Ullmann Reactionsmentioning

confidence: 99%

Modification of Azobenzenes by Cross-Coupling Reactions

et al. 2021

View full text Add to dashboard Cite

Azobenzenes are among the most extensively used molecular switches for many different applications. The need to tailor them to the required task often requires further functionalization. Cross-coupling reactions are ideally suited for late-stage modifications. This review provides an overview of recent developments in the modification of azobenzene and its derivatives by cross-coupling reactions.1 Introduction2 Azobenzenes as Formally Electrophilic Components2.1 Palladium Catalysis2.2 Nickel Catalysis2.3 Copper Catalysis2.4 Cobalt Catalysis3 Azobenzenes as Formally Nucleophilic Components3.1 Palladium Catalysis3.2 Copper Catalysis3.3 C–H Activation Reactions4 Azobenzenes as Ligands in Catalysts5 Diazocines5.1 Synthesis5.2 Cross-Coupling Reactions6 Conclusion

show abstract

Photoresponsive Conjugated Microporous Polymer Films Fabricated by Electrochemical Deposition for Controlled Release

Cited by 10 publications

References 29 publications

Macroscale Conjugated Microporous Polymers: Controlling Versatile Functionalities Over Several Dimensions

Macroscale Conjugated Microporous Polymers: Controlling Versatile Functionalities Over Several Dimensions

Advanced Applications and Challenges of Electropolymerized Conjugated Microporous Polymer Films

Modification of Azobenzenes by Cross-Coupling Reactions

Contact Info

Product

Resources

About