Chemiluminescence Induced Cationic Photopolymerization Using Sulfonium Salt

Wang, Chen; Meng, Xiaoyan; Li, Zhiquan; Li, Mengqi; Jin, Ming; Liu, Ren; Yaǧcı, Yusuf

doi:10.1021/acsmacrolett.0c00003

Cited by 20 publications

(14 citation statements)

References 44 publications

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“…The photoinitiator decomposition after excitation produced protonic acids that were capable of initiating cationic polymerization of oxirane (epoxides) and vinyl monomers. The presence of iodonium salt in the initiating system was found to increase the polymerization efficiency [119]. CL has been also used in polymerization reactions.…”

Section: Intermolecular Chemiluminescence Emission Modementioning

confidence: 99%

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Direct and Indirect Chemiluminescence: Reactions, Mechanisms and Challenges

et al. 2021

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Emission of light by matter can occur through a variety of mechanisms. When it results from an electronically excited state of a species produced by a chemical reaction, it is called chemiluminescence (CL). The phenomenon can take place both in natural and artificial chemical systems and it has been utilized in a variety of applications. In this review, we aim to revisit some of the latest CL applications based on direct and indirect production modes. The characteristics of the chemical reactions and the underpinning CL mechanisms are thoroughly discussed in view of studies from the very recent bibliography. Different methodologies aiming at higher CL efficiencies are summarized and presented in detail, including CL type and scaffolds used in each study. The CL role in the development of efficient therapeutic platforms is also discussed in relation to the Reactive Oxygen Species (ROS) and singlet oxygen (1O2) produced, as final products. Moreover, recent research results from our team are included regarding the behavior of commonly used photosensitizers upon chemical activation under CL conditions. The CL prospects in imaging, biomimetic organic and radical chemistry, and therapeutics are critically presented in respect to the persisting challenges and limitations of the existing strategies to date.

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Section: Intermolecular Chemiluminescence Emission Modementioning

confidence: 99%

“…The presence of iodonium salt in the initiating system was found to increase the polymerization efficiency. [119] Figure 18. CL induced cationic polymerization by using sulfonium salt as a photoinitiator.…”

Section: Intermolecular Chemiluminescence Emission Modementioning

confidence: 99%

Direct and Indirect Chemiluminescence: Reactions, Mechanisms and Challenges

et al. 2021

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“…Such distinct advantages include spatial and temporal control of the processes, low energy requirement and site‐specific activation, in contrast to thermal based synthesis [28–31] . Both free‐radical, [32,33] cationic [34,35] and step‐growth [36] polymerizations have been adapted to photochemical processes to benefit from these advantages [37,38] . In this context, many cationic photoinitiators are known and their photochemistry has been intensively studied [39–42] .…”

Section: Introductionmentioning

confidence: 99%

Directly and Indirectly Acting Photoinitiating Systems for Ring‐Opening Polymerization of ϵ‐Caprolactone

2021

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Directly and indirectly acting photoinitiating systems for cationic ring opening polymerization (ROP) of ϵ‐caprolactone (ϵ‐CL) by using diphenyl iodonium salt (DPI) in the presence of benzyl alcohol were studied and mechanistic details were evaluated. In the direct system, the polymerization is initiated by a Brønsted acid formed upon UV irradiation of DPI. Polymerizations by indirectly acting photoinitiating systems proceeding via electron transfer reactions of photochemically formed electron donor radicals or excited states of polynuclear aromatic compounds with DPI were investigated. It was demonstrated that polymerizations proceed in a controlled manner by an activated monomer (AM) mechanism. Applicability of the photoinitiation to the other lactone monomers was validated on the example of δ‐ valerolactone (δ‐VL).

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“…When the growing chain radical encounters with another radical, the propagation stops and chain polymerization process is also terminated [11a] . The cationic polymerization has also attracted increasing attentions due to some excellent properties, such as, dark reaction without light source, [36] no oxygen inhibition, [37] weak toxicity, [38] small volume shrinkage [39] and high thermal resistance [33] . The primary used photoinitiators for cationic polymerization are onium‐based salts, such as diary‐ liodonium, [40] and triarylsulfonium [41] .…”

Section: Nir Driven Polymerization By Ucnpsmentioning

confidence: 99%

Lanthanide‐Doped Nanoparticles for Near‐Infrared Light Activation of Photopolymerization: Fundamentals, Optimization and Applications

Yuan

Liu

et al. 2021

The Chemical Record

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Photopolymerization refers to a type of polymerization process in which light is utilized as excitation source to initiate polymerization of monomers and oligomers. Despite great progress, photopolymerization is typically induced by ultraviolet or visible light, which still greatly restrains its applications. Upconversion nanoparticles (UCNPs) represent a class of optical nanomaterials that are able to convert low‐energy near‐infrared (NIR) light into high‐energy ultraviolet (or visible light) emissions. In this context, UCNP‐assisted photopolymerization has recently attracted extensive attentions due to its unique advantages. In this account, recent advances in the fundamentals, optimization and emerging applications of UCNP‐based photopolymerization are reviewed. Fundamental theories of upconversion luminescence and photopolymerization will be introduced first. Various optimization approaches to improve UCNP‐assisted photopolymerization are then summarized, followed by diverse emerging applications. Challenges and future perspectives in this area will be provided as a conclusion.

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Chemiluminescence Induced Cationic Photopolymerization Using Sulfonium Salt

Cited by 20 publications

References 44 publications

Direct and Indirect Chemiluminescence: Reactions, Mechanisms and Challenges

Direct and Indirect Chemiluminescence: Reactions, Mechanisms and Challenges

Directly and Indirectly Acting Photoinitiating Systems for Ring‐Opening Polymerization of ϵ‐Caprolactone

Lanthanide‐Doped Nanoparticles for Near‐Infrared Light Activation of Photopolymerization: Fundamentals, Optimization and Applications

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