Journal ArticleDOI
Visible Light-Mediated Polymerization-Induced Self-Assembly in the Absence of External Catalyst or Initiator
TLDR
In this article, the use of visible light to mediate a RAFT dispersion polymerization in the absence of external catalyst or initiator to yield nanoparticles of different morphologies according to a polymerization-induced self-assembly (PISA) mechanism was reported.Abstract:
We report the use of visible light to mediate a RAFT dispersion polymerization in the absence of external catalyst or initiator to yield nanoparticles of different morphologies according to a polymerization-induced self-assembly (PISA) mechanism. A POEGMA macro-chain transfer agent (macro-CTA) derived from a 4-cyano-4-((dodecylsulfanylthiocarbonyl)sulfanyl)pentanoic acid (CDTPA) RAFT agent can be activated under blue (460 nm, 0.7 mW/cm2) or green (530 nm, 0.7 mW/cm2) light and act simultaneously as a radical initiator, chain transfer agent, and particle stabilizer under ethanolic dispersion conditions. In particular, the formation of worm-like micelles was readily monitored by the increase of reaction viscosity during the polymerization; this method was shown to be particularly robust to different reaction parameters such as macro-CTAs of varying molecular weight. Interestingly, at high monomer conversion, different morphologies were formed depending on the wavelength of light employed, which may be due t...read more
Citations
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Journal ArticleDOI
Photomediated controlled radical polymerization
Xiangcheng Pan,Mehmet Atilla Tasdelen,Joachim Laun,Thomas Junkers,Thomas Junkers,Yusuf Yagci,Yusuf Yagci,Krzysztof Matyjaszewski +7 more
TL;DR: A comprehensive overview of the fundamentals and applications of various photomediated CRP techniques, including atom transfer radical polymerization, reversible addition-fragmentation chain transfer (RAFT), nitroxide mediated polymerization (NMP), and other procedures are discussed in this article.
Journal ArticleDOI
Emerging trends in polymerization-induced self-assembly
TL;DR: Alternative PISA protocols are paid particular attention to, which allow the preparation of nanoparticles with improved control over copolymer morphology and functionality, and have been optimized via high-throughput polymerization and recently evaluated within flow reactors for facile scale-up syntheses.
Journal ArticleDOI
RAFT‐mediated polymerization‐induced self‐assembly
TL;DR: This review will cover the fundamentals of the PISA mechanism and review some features and limitations of RAFT-mediated PISA in terms of the choice of the components involved, the nature of the nano-objects that is achievable, the morphologies that are accessible and how they can be controlled, and some potential applications.
Journal ArticleDOI
Photoinitiated Polymerization-Induced Self-Assembly (Photo-PISA): New Insights and Opportunities.
Jonathan Yeow,Cyrille Boyer +1 more
TL;DR: The purpose of this mini‐review is to examine some of these recent advances that have been made in Photo‐PISA processes, particularly in light of the specific advantages that may exist in comparison with conventional thermally initiated systems.
Journal ArticleDOI
Photo-responsive polymers: synthesis and applications
TL;DR: In this paper, the authors highlight the progress realized in recent years on light-responsive polymers and provide some guidelines towards the rational design of photo-responsive block copolymers and present the different photoresponsive moieties that have been used so far.
References
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Journal ArticleDOI
Effect of Mild Visible Light on Rapid Aqueous RAFT Polymerization of Water-Soluble Acrylic Monomers at Ambient Temperature: Initiation and Activation
TL;DR: In this paper, the effect of visible light on aqueous RAFT polymerization was investigated by employing a periodic light-on−off process, and the results demonstrated that EDMAT was stable in acidic aqous solution but liable to hydrolysis in alkali solution; its absorption covers a wide visible light wave range of 388−520 nm.
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The direct synthesis of interface-decorated reactive block copolymer nanoparticles via polymerisation-induced self-assembly
TL;DR: In this article, a new strategy for one-pot synthesis of reactive block copolymer nanoparticles whose hydrophobic reactive motifs decorate the surrounding core-shell interfaces is presented.
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RAFT Dispersion Polymerization in Nonpolar Media: Polymerization of 3-Phenylpropyl Methacrylate in n-Tetradecane with Poly(stearyl methacrylate) Homopolymers as Macro Chain Transfer Agents
TL;DR: In this article, a worm-to-sphere morphology transition was facilitated by the RAFT dispersion polymerization of 3-phenylpropyl methacrylate (PPMA) in n-tetradecane.
Journal ArticleDOI
Single Monomer for Multiple Tasks: Polymerization Induced Self-Assembly, Functionalization and Cross-Linking, and Nanoparticle Loading
TL;DR: In this paper, a single commodity monomer 2-(acetoacetoxy)ethyl methacrylate (AEMA) was introduced to realize multiple functions, such as morphology control and multifunctionalization.
Journal ArticleDOI
Use of Polyion Complexation for Polymerization-Induced Self-Assembly in Water under Visible Light Irradiation at 25 °C
TL;DR: In this article, a reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of NH3+-monomer 2-aminoethylacrylamide hydrochloride (AEAM) can be achieved in water under visible light irradiation at 25 °C.