Catalyst-free and visible light-induced RAFT alternating polymerization of 1,3-pentadiene isomers and maleic anhydride

Liu, Kun; Xiong, Qiaoqiao; Gu, Zhuowei; Zhang, Feng; Fu, Yawen; Xie, Fengli; Yi, Wei; Liu, An; Xu, Jundong; Li, LiJun

doi:10.1016/j.eurpolymj.2023.112292

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…In addition, only limited examples of photoinitiated sequence-controlled polymerizations exist. 22 In contrast, photoinitiated/photocontrolled living polymerizations have been reported in various studies. 23−27 For example, atom transfer radical polymerization (ATRP) and reversible addition−fragmentation chain transfer (RAFT) polymerization combined with photoinduced electron transfer were developed using suitable photoactivators.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The synthesis of multiblock, alternating, or gradient polymers by applying various living polymerization methods has been reported, , whereas the control of monomer sequences by living polymerization remains challenging. In addition, only limited examples of photoinitiated sequence-controlled polymerizations exist . In contrast, photoinitiated/photocontrolled living polymerizations have been reported in various studies. − For example, atom transfer radical polymerization (ATRP) and reversible addition–fragmentation chain transfer (RAFT) polymerization combined with photoinduced electron transfer were developed using suitable photoactivators.…”

Section: Introductionmentioning

confidence: 99%

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Metal-Free, Photoinitiated Cationic Terpolymerization of Vinyl Ethers, Oxiranes, and Ketones: Simultaneous Control of Monomer Sequence and Molecular Weight by the Formation of Long-Lived Propagating Species

Eguchi,

Kanazawa,

Aoshima

2024

Macromolecules

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Simultaneous control of multiple factors, such as the molecular weight, sequence, initiation reactions, chain ends, and topology, related to polymers and polymerization reactions, is highly desirable to achieve the sophisticated and precise design of polymers. In this study, we aimed to develop a novel polymerization system by combining sequence-controlled, living, and photoinitiated polymerization reactions. As a result of fine-tuning the reaction conditions, including the monomer combinations and additives, the photoinitiated, sequence-controlled cationic terpolymerization of vinyl ether (VE), oxirane, and ketone proceeded in a living manner to yield polymers with predetermined molecular weights and ABC pseudo-periodic sequences. By using a diaryliodonium salt as a photoinitiator, terpolymerization was initiated via UV irradiation without any metal-based catalysts or corrosive protonic acids. During terpolymerization, the following highly selective crossover reactions occurred: VE → oxirane, oxirane → ketone, and ketone → VE. Moreover, dormant species were generated from the oxirane-derived propagating end and a suitable cyclic ether, resulting in propagation reactions that proceeded in a living manner. The generation of these dormant species was confirmed by oxirane homopolymerization in the presence of cyclic ethers and terpolymerization quenching using sodium phenoxide as a quencher.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal-Free, Photoinitiated Cationic Terpolymerization of Vinyl Ethers, Oxiranes, and Ketones: Simultaneous Control of Monomer Sequence and Molecular Weight by the Formation of Long-Lived Propagating Species

Eguchi,

Kanazawa,

Aoshima

2024

Macromolecules

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“…27,30–32 Concerning poly(styrene- co -maleic anhydride) (PSMA) copolymers, nitroxide mediated radical polymerization (NMP) and reversible activation-fragmentation transfer (RAFT) polymerization have been frequently utilized. 28,33–36 For example, Moriceau et al have prepared diblock, multiblock, multisite, linear alternating and star alternating PSMA. Significant differences in the crystallization temperature and viscosity among copolymers with different copolymer compositions and chain topologies have been discovered.…”

Section: Introductionmentioning

confidence: 99%

Highly differentiated multi-stimuli-responsive fluorescence performance of tetraphenylethylene-containing styrene–maleic acid copolymers induced by macromolecular architecture control

Gao,

Guo,

Wang

et al. 2023

Polym. Chem.

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Catalyst-free and visible light-induced RAFT alternating polymerization of 1,3-pentadiene isomers and maleic anhydride

Cited by 2 publications

References 27 publications

Metal-Free, Photoinitiated Cationic Terpolymerization of Vinyl Ethers, Oxiranes, and Ketones: Simultaneous Control of Monomer Sequence and Molecular Weight by the Formation of Long-Lived Propagating Species

Metal-Free, Photoinitiated Cationic Terpolymerization of Vinyl Ethers, Oxiranes, and Ketones: Simultaneous Control of Monomer Sequence and Molecular Weight by the Formation of Long-Lived Propagating Species

Highly differentiated multi-stimuli-responsive fluorescence performance of tetraphenylethylene-containing styrene–maleic acid copolymers induced by macromolecular architecture control

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